mirror of
https://github.com/django/django.git
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62b8596616
Some non-unique constraint names were added in
b69f8eb04c which resulted in failures
depending on the order in which tests were run.
2954 lines
143 KiB
Python
2954 lines
143 KiB
Python
from django.core.exceptions import FieldDoesNotExist
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from django.db import connection, migrations, models, transaction
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from django.db.migrations.migration import Migration
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from django.db.migrations.operations import CreateModel
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from django.db.migrations.operations.fields import FieldOperation
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from django.db.migrations.state import ModelState, ProjectState
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from django.db.models.fields import NOT_PROVIDED
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from django.db.transaction import atomic
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from django.db.utils import IntegrityError
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from django.test import SimpleTestCase, override_settings, skipUnlessDBFeature
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from .models import FoodManager, FoodQuerySet, UnicodeModel
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from .test_base import MigrationTestBase
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class Mixin:
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pass
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class OperationTestBase(MigrationTestBase):
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"""
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Common functions to help test operations.
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"""
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@classmethod
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def setUpClass(cls):
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super().setUpClass()
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cls._initial_table_names = frozenset(connection.introspection.table_names())
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def tearDown(self):
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self.cleanup_test_tables()
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super().tearDown()
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def cleanup_test_tables(self):
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table_names = frozenset(connection.introspection.table_names()) - self._initial_table_names
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with connection.schema_editor() as editor:
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with connection.constraint_checks_disabled():
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for table_name in table_names:
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editor.execute(editor.sql_delete_table % {
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'table': editor.quote_name(table_name),
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})
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def apply_operations(self, app_label, project_state, operations, atomic=True):
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migration = Migration('name', app_label)
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migration.operations = operations
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with connection.schema_editor(atomic=atomic) as editor:
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return migration.apply(project_state, editor)
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def unapply_operations(self, app_label, project_state, operations, atomic=True):
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migration = Migration('name', app_label)
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migration.operations = operations
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with connection.schema_editor(atomic=atomic) as editor:
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return migration.unapply(project_state, editor)
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def make_test_state(self, app_label, operation, **kwargs):
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"""
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Makes a test state using set_up_test_model and returns the
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original state and the state after the migration is applied.
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"""
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project_state = self.set_up_test_model(app_label, **kwargs)
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new_state = project_state.clone()
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operation.state_forwards(app_label, new_state)
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return project_state, new_state
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def set_up_test_model(
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self, app_label, second_model=False, third_model=False, index=False, multicol_index=False,
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related_model=False, mti_model=False, proxy_model=False, manager_model=False,
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unique_together=False, options=False, db_table=None, index_together=False, constraints=None):
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"""
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Creates a test model state and database table.
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"""
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# Make the "current" state
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model_options = {
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"swappable": "TEST_SWAP_MODEL",
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"index_together": [["weight", "pink"]] if index_together else [],
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"unique_together": [["pink", "weight"]] if unique_together else [],
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}
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if options:
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model_options["permissions"] = [("can_groom", "Can groom")]
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if db_table:
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model_options["db_table"] = db_table
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operations = [migrations.CreateModel(
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"Pony",
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[
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("id", models.AutoField(primary_key=True)),
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("pink", models.IntegerField(default=3)),
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("weight", models.FloatField()),
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],
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options=model_options,
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)]
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if index:
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operations.append(migrations.AddIndex(
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"Pony",
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models.Index(fields=["pink"], name="pony_pink_idx")
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))
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if multicol_index:
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operations.append(migrations.AddIndex(
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"Pony",
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models.Index(fields=["pink", "weight"], name="pony_test_idx")
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))
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if constraints:
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for constraint in constraints:
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operations.append(migrations.AddConstraint(
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"Pony",
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constraint,
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))
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if second_model:
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operations.append(migrations.CreateModel(
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"Stable",
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[
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("id", models.AutoField(primary_key=True)),
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]
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))
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if third_model:
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operations.append(migrations.CreateModel(
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"Van",
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[
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("id", models.AutoField(primary_key=True)),
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]
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))
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if related_model:
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operations.append(migrations.CreateModel(
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"Rider",
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[
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("id", models.AutoField(primary_key=True)),
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("pony", models.ForeignKey("Pony", models.CASCADE)),
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("friend", models.ForeignKey("self", models.CASCADE))
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],
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))
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if mti_model:
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operations.append(migrations.CreateModel(
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"ShetlandPony",
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fields=[
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('pony_ptr', models.OneToOneField(
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'Pony',
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models.CASCADE,
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auto_created=True,
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parent_link=True,
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primary_key=True,
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to_field='id',
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serialize=False,
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)),
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("cuteness", models.IntegerField(default=1)),
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],
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bases=['%s.Pony' % app_label],
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))
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if proxy_model:
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operations.append(migrations.CreateModel(
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"ProxyPony",
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fields=[],
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options={"proxy": True},
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bases=['%s.Pony' % app_label],
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))
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if manager_model:
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operations.append(migrations.CreateModel(
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"Food",
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fields=[
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("id", models.AutoField(primary_key=True)),
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],
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managers=[
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("food_qs", FoodQuerySet.as_manager()),
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("food_mgr", FoodManager("a", "b")),
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("food_mgr_kwargs", FoodManager("x", "y", 3, 4)),
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]
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))
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return self.apply_operations(app_label, ProjectState(), operations)
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class OperationTests(OperationTestBase):
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"""
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Tests running the operations and making sure they do what they say they do.
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Each test looks at their state changing, and then their database operation -
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both forwards and backwards.
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"""
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def test_create_model(self):
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"""
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Tests the CreateModel operation.
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Most other tests use this operation as part of setup, so check failures here first.
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"""
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operation = migrations.CreateModel(
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"Pony",
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[
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("id", models.AutoField(primary_key=True)),
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("pink", models.IntegerField(default=1)),
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],
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)
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self.assertEqual(operation.describe(), "Create model Pony")
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# Test the state alteration
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project_state = ProjectState()
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new_state = project_state.clone()
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operation.state_forwards("test_crmo", new_state)
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self.assertEqual(new_state.models["test_crmo", "pony"].name, "Pony")
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self.assertEqual(len(new_state.models["test_crmo", "pony"].fields), 2)
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# Test the database alteration
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self.assertTableNotExists("test_crmo_pony")
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with connection.schema_editor() as editor:
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operation.database_forwards("test_crmo", editor, project_state, new_state)
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self.assertTableExists("test_crmo_pony")
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# And test reversal
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with connection.schema_editor() as editor:
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operation.database_backwards("test_crmo", editor, new_state, project_state)
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self.assertTableNotExists("test_crmo_pony")
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# And deconstruction
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definition = operation.deconstruct()
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self.assertEqual(definition[0], "CreateModel")
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self.assertEqual(definition[1], [])
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self.assertEqual(sorted(definition[2]), ["fields", "name"])
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# And default manager not in set
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operation = migrations.CreateModel("Foo", fields=[], managers=[("objects", models.Manager())])
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definition = operation.deconstruct()
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self.assertNotIn('managers', definition[2])
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def test_create_model_with_duplicate_field_name(self):
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with self.assertRaisesMessage(ValueError, 'Found duplicate value pink in CreateModel fields argument.'):
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migrations.CreateModel(
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"Pony",
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[
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("id", models.AutoField(primary_key=True)),
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("pink", models.TextField()),
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("pink", models.IntegerField(default=1)),
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],
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)
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def test_create_model_with_duplicate_base(self):
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message = 'Found duplicate value test_crmo.pony in CreateModel bases argument.'
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with self.assertRaisesMessage(ValueError, message):
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migrations.CreateModel(
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"Pony",
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fields=[],
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bases=("test_crmo.Pony", "test_crmo.Pony",),
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)
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with self.assertRaisesMessage(ValueError, message):
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migrations.CreateModel(
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"Pony",
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fields=[],
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bases=("test_crmo.Pony", "test_crmo.pony",),
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)
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message = 'Found duplicate value migrations.unicodemodel in CreateModel bases argument.'
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with self.assertRaisesMessage(ValueError, message):
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migrations.CreateModel(
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"Pony",
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fields=[],
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bases=(UnicodeModel, UnicodeModel,),
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)
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with self.assertRaisesMessage(ValueError, message):
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migrations.CreateModel(
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"Pony",
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fields=[],
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bases=(UnicodeModel, 'migrations.unicodemodel',),
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)
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with self.assertRaisesMessage(ValueError, message):
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migrations.CreateModel(
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"Pony",
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fields=[],
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bases=(UnicodeModel, 'migrations.UnicodeModel',),
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)
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message = "Found duplicate value <class 'django.db.models.base.Model'> in CreateModel bases argument."
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with self.assertRaisesMessage(ValueError, message):
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migrations.CreateModel(
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"Pony",
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fields=[],
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bases=(models.Model, models.Model,),
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)
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message = "Found duplicate value <class 'migrations.test_operations.Mixin'> in CreateModel bases argument."
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with self.assertRaisesMessage(ValueError, message):
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migrations.CreateModel(
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"Pony",
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fields=[],
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bases=(Mixin, Mixin,),
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)
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def test_create_model_with_duplicate_manager_name(self):
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with self.assertRaisesMessage(ValueError, 'Found duplicate value objects in CreateModel managers argument.'):
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migrations.CreateModel(
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"Pony",
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fields=[],
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managers=[
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("objects", models.Manager()),
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("objects", models.Manager()),
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],
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)
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def test_create_model_with_unique_after(self):
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"""
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Tests the CreateModel operation directly followed by an
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AlterUniqueTogether (bug #22844 - sqlite remake issues)
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"""
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operation1 = migrations.CreateModel(
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"Pony",
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[
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("id", models.AutoField(primary_key=True)),
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("pink", models.IntegerField(default=1)),
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],
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)
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operation2 = migrations.CreateModel(
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"Rider",
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[
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("id", models.AutoField(primary_key=True)),
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("number", models.IntegerField(default=1)),
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("pony", models.ForeignKey("test_crmoua.Pony", models.CASCADE)),
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],
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)
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operation3 = migrations.AlterUniqueTogether(
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"Rider",
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[
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("number", "pony"),
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],
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)
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# Test the database alteration
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project_state = ProjectState()
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self.assertTableNotExists("test_crmoua_pony")
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self.assertTableNotExists("test_crmoua_rider")
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with connection.schema_editor() as editor:
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new_state = project_state.clone()
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operation1.state_forwards("test_crmoua", new_state)
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operation1.database_forwards("test_crmoua", editor, project_state, new_state)
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project_state, new_state = new_state, new_state.clone()
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operation2.state_forwards("test_crmoua", new_state)
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operation2.database_forwards("test_crmoua", editor, project_state, new_state)
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project_state, new_state = new_state, new_state.clone()
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operation3.state_forwards("test_crmoua", new_state)
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operation3.database_forwards("test_crmoua", editor, project_state, new_state)
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self.assertTableExists("test_crmoua_pony")
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self.assertTableExists("test_crmoua_rider")
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def test_create_model_m2m(self):
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"""
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Test the creation of a model with a ManyToMany field and the
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auto-created "through" model.
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"""
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project_state = self.set_up_test_model("test_crmomm")
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operation = migrations.CreateModel(
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"Stable",
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[
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("id", models.AutoField(primary_key=True)),
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("ponies", models.ManyToManyField("Pony", related_name="stables"))
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]
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)
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# Test the state alteration
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new_state = project_state.clone()
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operation.state_forwards("test_crmomm", new_state)
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# Test the database alteration
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self.assertTableNotExists("test_crmomm_stable_ponies")
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with connection.schema_editor() as editor:
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operation.database_forwards("test_crmomm", editor, project_state, new_state)
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self.assertTableExists("test_crmomm_stable")
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self.assertTableExists("test_crmomm_stable_ponies")
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self.assertColumnNotExists("test_crmomm_stable", "ponies")
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# Make sure the M2M field actually works
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with atomic():
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Pony = new_state.apps.get_model("test_crmomm", "Pony")
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Stable = new_state.apps.get_model("test_crmomm", "Stable")
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stable = Stable.objects.create()
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p1 = Pony.objects.create(pink=False, weight=4.55)
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p2 = Pony.objects.create(pink=True, weight=5.43)
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stable.ponies.add(p1, p2)
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self.assertEqual(stable.ponies.count(), 2)
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stable.ponies.all().delete()
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# And test reversal
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with connection.schema_editor() as editor:
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operation.database_backwards("test_crmomm", editor, new_state, project_state)
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self.assertTableNotExists("test_crmomm_stable")
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self.assertTableNotExists("test_crmomm_stable_ponies")
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def test_create_model_inheritance(self):
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"""
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Tests the CreateModel operation on a multi-table inheritance setup.
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"""
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project_state = self.set_up_test_model("test_crmoih")
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# Test the state alteration
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operation = migrations.CreateModel(
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"ShetlandPony",
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[
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('pony_ptr', models.OneToOneField(
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'test_crmoih.Pony',
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models.CASCADE,
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auto_created=True,
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primary_key=True,
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to_field='id',
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serialize=False,
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)),
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("cuteness", models.IntegerField(default=1)),
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],
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)
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new_state = project_state.clone()
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operation.state_forwards("test_crmoih", new_state)
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self.assertIn(("test_crmoih", "shetlandpony"), new_state.models)
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# Test the database alteration
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self.assertTableNotExists("test_crmoih_shetlandpony")
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with connection.schema_editor() as editor:
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operation.database_forwards("test_crmoih", editor, project_state, new_state)
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self.assertTableExists("test_crmoih_shetlandpony")
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# And test reversal
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with connection.schema_editor() as editor:
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operation.database_backwards("test_crmoih", editor, new_state, project_state)
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self.assertTableNotExists("test_crmoih_shetlandpony")
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def test_create_proxy_model(self):
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"""
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CreateModel ignores proxy models.
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"""
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project_state = self.set_up_test_model("test_crprmo")
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# Test the state alteration
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operation = migrations.CreateModel(
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"ProxyPony",
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[],
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options={"proxy": True},
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bases=("test_crprmo.Pony",),
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)
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self.assertEqual(operation.describe(), "Create proxy model ProxyPony")
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new_state = project_state.clone()
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operation.state_forwards("test_crprmo", new_state)
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self.assertIn(("test_crprmo", "proxypony"), new_state.models)
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# Test the database alteration
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self.assertTableNotExists("test_crprmo_proxypony")
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self.assertTableExists("test_crprmo_pony")
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with connection.schema_editor() as editor:
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operation.database_forwards("test_crprmo", editor, project_state, new_state)
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self.assertTableNotExists("test_crprmo_proxypony")
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self.assertTableExists("test_crprmo_pony")
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# And test reversal
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with connection.schema_editor() as editor:
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operation.database_backwards("test_crprmo", editor, new_state, project_state)
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self.assertTableNotExists("test_crprmo_proxypony")
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self.assertTableExists("test_crprmo_pony")
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# And deconstruction
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definition = operation.deconstruct()
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self.assertEqual(definition[0], "CreateModel")
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self.assertEqual(definition[1], [])
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self.assertEqual(sorted(definition[2]), ["bases", "fields", "name", "options"])
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|
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def test_create_unmanaged_model(self):
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"""
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CreateModel ignores unmanaged models.
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"""
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project_state = self.set_up_test_model("test_crummo")
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# Test the state alteration
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operation = migrations.CreateModel(
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"UnmanagedPony",
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[],
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options={"proxy": True},
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bases=("test_crummo.Pony",),
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)
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self.assertEqual(operation.describe(), "Create proxy model UnmanagedPony")
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new_state = project_state.clone()
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operation.state_forwards("test_crummo", new_state)
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self.assertIn(("test_crummo", "unmanagedpony"), new_state.models)
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# Test the database alteration
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self.assertTableNotExists("test_crummo_unmanagedpony")
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self.assertTableExists("test_crummo_pony")
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with connection.schema_editor() as editor:
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operation.database_forwards("test_crummo", editor, project_state, new_state)
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self.assertTableNotExists("test_crummo_unmanagedpony")
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self.assertTableExists("test_crummo_pony")
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# And test reversal
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with connection.schema_editor() as editor:
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operation.database_backwards("test_crummo", editor, new_state, project_state)
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self.assertTableNotExists("test_crummo_unmanagedpony")
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self.assertTableExists("test_crummo_pony")
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|
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@skipUnlessDBFeature('supports_table_check_constraints')
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|
def test_create_model_with_constraint(self):
|
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where = models.Q(pink__gt=2)
|
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check_constraint = models.CheckConstraint(check=where, name='test_constraint_pony_pink_gt_2')
|
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operation = migrations.CreateModel(
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"Pony",
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[
|
|
("id", models.AutoField(primary_key=True)),
|
|
("pink", models.IntegerField(default=3)),
|
|
],
|
|
options={'constraints': [check_constraint]},
|
|
)
|
|
|
|
# Test the state alteration
|
|
project_state = ProjectState()
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_crmo", new_state)
|
|
self.assertEqual(len(new_state.models['test_crmo', 'pony'].options['constraints']), 1)
|
|
|
|
# Test database alteration
|
|
self.assertTableNotExists("test_crmo_pony")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_crmo", editor, project_state, new_state)
|
|
self.assertTableExists("test_crmo_pony")
|
|
with connection.cursor() as cursor:
|
|
with self.assertRaises(IntegrityError):
|
|
cursor.execute("INSERT INTO test_crmo_pony (id, pink) VALUES (1, 1)")
|
|
|
|
# Test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_crmo", editor, new_state, project_state)
|
|
self.assertTableNotExists("test_crmo_pony")
|
|
|
|
# Test deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "CreateModel")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(definition[2]['options']['constraints'], [check_constraint])
|
|
|
|
def test_create_model_with_partial_unique_constraint(self):
|
|
partial_unique_constraint = models.UniqueConstraint(
|
|
fields=['pink'],
|
|
condition=models.Q(weight__gt=5),
|
|
name='test_constraint_pony_pink_for_weight_gt_5_uniq',
|
|
)
|
|
operation = migrations.CreateModel(
|
|
'Pony',
|
|
[
|
|
('id', models.AutoField(primary_key=True)),
|
|
('pink', models.IntegerField(default=3)),
|
|
('weight', models.FloatField()),
|
|
],
|
|
options={'constraints': [partial_unique_constraint]},
|
|
)
|
|
# Test the state alteration
|
|
project_state = ProjectState()
|
|
new_state = project_state.clone()
|
|
operation.state_forwards('test_crmo', new_state)
|
|
self.assertEqual(len(new_state.models['test_crmo', 'pony'].options['constraints']), 1)
|
|
# Test database alteration
|
|
self.assertTableNotExists('test_crmo_pony')
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards('test_crmo', editor, project_state, new_state)
|
|
self.assertTableExists('test_crmo_pony')
|
|
# Test constraint works
|
|
Pony = new_state.apps.get_model('test_crmo', 'Pony')
|
|
Pony.objects.create(pink=1, weight=4.0)
|
|
Pony.objects.create(pink=1, weight=4.0)
|
|
Pony.objects.create(pink=1, weight=6.0)
|
|
if connection.features.supports_partial_indexes:
|
|
with self.assertRaises(IntegrityError):
|
|
Pony.objects.create(pink=1, weight=7.0)
|
|
else:
|
|
Pony.objects.create(pink=1, weight=7.0)
|
|
# Test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards('test_crmo', editor, new_state, project_state)
|
|
self.assertTableNotExists('test_crmo_pony')
|
|
# Test deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], 'CreateModel')
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(definition[2]['options']['constraints'], [partial_unique_constraint])
|
|
|
|
def test_create_model_managers(self):
|
|
"""
|
|
The managers on a model are set.
|
|
"""
|
|
project_state = self.set_up_test_model("test_cmoma")
|
|
# Test the state alteration
|
|
operation = migrations.CreateModel(
|
|
"Food",
|
|
fields=[
|
|
("id", models.AutoField(primary_key=True)),
|
|
],
|
|
managers=[
|
|
("food_qs", FoodQuerySet.as_manager()),
|
|
("food_mgr", FoodManager("a", "b")),
|
|
("food_mgr_kwargs", FoodManager("x", "y", 3, 4)),
|
|
]
|
|
)
|
|
self.assertEqual(operation.describe(), "Create model Food")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_cmoma", new_state)
|
|
self.assertIn(("test_cmoma", "food"), new_state.models)
|
|
managers = new_state.models["test_cmoma", "food"].managers
|
|
self.assertEqual(managers[0][0], "food_qs")
|
|
self.assertIsInstance(managers[0][1], models.Manager)
|
|
self.assertEqual(managers[1][0], "food_mgr")
|
|
self.assertIsInstance(managers[1][1], FoodManager)
|
|
self.assertEqual(managers[1][1].args, ("a", "b", 1, 2))
|
|
self.assertEqual(managers[2][0], "food_mgr_kwargs")
|
|
self.assertIsInstance(managers[2][1], FoodManager)
|
|
self.assertEqual(managers[2][1].args, ("x", "y", 3, 4))
|
|
|
|
def test_delete_model(self):
|
|
"""
|
|
Tests the DeleteModel operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_dlmo")
|
|
# Test the state alteration
|
|
operation = migrations.DeleteModel("Pony")
|
|
self.assertEqual(operation.describe(), "Delete model Pony")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_dlmo", new_state)
|
|
self.assertNotIn(("test_dlmo", "pony"), new_state.models)
|
|
# Test the database alteration
|
|
self.assertTableExists("test_dlmo_pony")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_dlmo", editor, project_state, new_state)
|
|
self.assertTableNotExists("test_dlmo_pony")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_dlmo", editor, new_state, project_state)
|
|
self.assertTableExists("test_dlmo_pony")
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "DeleteModel")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(list(definition[2]), ["name"])
|
|
|
|
def test_delete_proxy_model(self):
|
|
"""
|
|
Tests the DeleteModel operation ignores proxy models.
|
|
"""
|
|
project_state = self.set_up_test_model("test_dlprmo", proxy_model=True)
|
|
# Test the state alteration
|
|
operation = migrations.DeleteModel("ProxyPony")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_dlprmo", new_state)
|
|
self.assertIn(("test_dlprmo", "proxypony"), project_state.models)
|
|
self.assertNotIn(("test_dlprmo", "proxypony"), new_state.models)
|
|
# Test the database alteration
|
|
self.assertTableExists("test_dlprmo_pony")
|
|
self.assertTableNotExists("test_dlprmo_proxypony")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_dlprmo", editor, project_state, new_state)
|
|
self.assertTableExists("test_dlprmo_pony")
|
|
self.assertTableNotExists("test_dlprmo_proxypony")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_dlprmo", editor, new_state, project_state)
|
|
self.assertTableExists("test_dlprmo_pony")
|
|
self.assertTableNotExists("test_dlprmo_proxypony")
|
|
|
|
def test_delete_mti_model(self):
|
|
project_state = self.set_up_test_model('test_dlmtimo', mti_model=True)
|
|
# Test the state alteration
|
|
operation = migrations.DeleteModel('ShetlandPony')
|
|
new_state = project_state.clone()
|
|
operation.state_forwards('test_dlmtimo', new_state)
|
|
self.assertIn(('test_dlmtimo', 'shetlandpony'), project_state.models)
|
|
self.assertNotIn(('test_dlmtimo', 'shetlandpony'), new_state.models)
|
|
# Test the database alteration
|
|
self.assertTableExists('test_dlmtimo_pony')
|
|
self.assertTableExists('test_dlmtimo_shetlandpony')
|
|
self.assertColumnExists('test_dlmtimo_shetlandpony', 'pony_ptr_id')
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards('test_dlmtimo', editor, project_state, new_state)
|
|
self.assertTableExists('test_dlmtimo_pony')
|
|
self.assertTableNotExists('test_dlmtimo_shetlandpony')
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards('test_dlmtimo', editor, new_state, project_state)
|
|
self.assertTableExists('test_dlmtimo_pony')
|
|
self.assertTableExists('test_dlmtimo_shetlandpony')
|
|
self.assertColumnExists('test_dlmtimo_shetlandpony', 'pony_ptr_id')
|
|
|
|
def test_rename_model(self):
|
|
"""
|
|
Tests the RenameModel operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_rnmo", related_model=True)
|
|
# Test the state alteration
|
|
operation = migrations.RenameModel("Pony", "Horse")
|
|
self.assertEqual(operation.describe(), "Rename model Pony to Horse")
|
|
# Test initial state and database
|
|
self.assertIn(("test_rnmo", "pony"), project_state.models)
|
|
self.assertNotIn(("test_rnmo", "horse"), project_state.models)
|
|
self.assertTableExists("test_rnmo_pony")
|
|
self.assertTableNotExists("test_rnmo_horse")
|
|
if connection.features.supports_foreign_keys:
|
|
self.assertFKExists("test_rnmo_rider", ["pony_id"], ("test_rnmo_pony", "id"))
|
|
self.assertFKNotExists("test_rnmo_rider", ["pony_id"], ("test_rnmo_horse", "id"))
|
|
# Migrate forwards
|
|
new_state = project_state.clone()
|
|
atomic_rename = connection.features.supports_atomic_references_rename
|
|
new_state = self.apply_operations("test_rnmo", new_state, [operation], atomic=atomic_rename)
|
|
# Test new state and database
|
|
self.assertNotIn(("test_rnmo", "pony"), new_state.models)
|
|
self.assertIn(("test_rnmo", "horse"), new_state.models)
|
|
# RenameModel also repoints all incoming FKs and M2Ms
|
|
self.assertEqual("test_rnmo.Horse", new_state.models["test_rnmo", "rider"].fields[1][1].remote_field.model)
|
|
self.assertTableNotExists("test_rnmo_pony")
|
|
self.assertTableExists("test_rnmo_horse")
|
|
if connection.features.supports_foreign_keys:
|
|
self.assertFKNotExists("test_rnmo_rider", ["pony_id"], ("test_rnmo_pony", "id"))
|
|
self.assertFKExists("test_rnmo_rider", ["pony_id"], ("test_rnmo_horse", "id"))
|
|
# Migrate backwards
|
|
original_state = self.unapply_operations("test_rnmo", project_state, [operation], atomic=atomic_rename)
|
|
# Test original state and database
|
|
self.assertIn(("test_rnmo", "pony"), original_state.models)
|
|
self.assertNotIn(("test_rnmo", "horse"), original_state.models)
|
|
self.assertEqual("Pony", original_state.models["test_rnmo", "rider"].fields[1][1].remote_field.model)
|
|
self.assertTableExists("test_rnmo_pony")
|
|
self.assertTableNotExists("test_rnmo_horse")
|
|
if connection.features.supports_foreign_keys:
|
|
self.assertFKExists("test_rnmo_rider", ["pony_id"], ("test_rnmo_pony", "id"))
|
|
self.assertFKNotExists("test_rnmo_rider", ["pony_id"], ("test_rnmo_horse", "id"))
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "RenameModel")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(definition[2], {'old_name': "Pony", 'new_name': "Horse"})
|
|
|
|
def test_rename_model_state_forwards(self):
|
|
"""
|
|
RenameModel operations shouldn't trigger the caching of rendered apps
|
|
on state without prior apps.
|
|
"""
|
|
state = ProjectState()
|
|
state.add_model(ModelState('migrations', 'Foo', []))
|
|
operation = migrations.RenameModel('Foo', 'Bar')
|
|
operation.state_forwards('migrations', state)
|
|
self.assertNotIn('apps', state.__dict__)
|
|
self.assertNotIn(('migrations', 'foo'), state.models)
|
|
self.assertIn(('migrations', 'bar'), state.models)
|
|
# Now with apps cached.
|
|
apps = state.apps
|
|
operation = migrations.RenameModel('Bar', 'Foo')
|
|
operation.state_forwards('migrations', state)
|
|
self.assertIs(state.apps, apps)
|
|
self.assertNotIn(('migrations', 'bar'), state.models)
|
|
self.assertIn(('migrations', 'foo'), state.models)
|
|
|
|
def test_rename_model_with_self_referential_fk(self):
|
|
"""
|
|
Tests the RenameModel operation on model with self referential FK.
|
|
"""
|
|
project_state = self.set_up_test_model("test_rmwsrf", related_model=True)
|
|
# Test the state alteration
|
|
operation = migrations.RenameModel("Rider", "HorseRider")
|
|
self.assertEqual(operation.describe(), "Rename model Rider to HorseRider")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_rmwsrf", new_state)
|
|
self.assertNotIn(("test_rmwsrf", "rider"), new_state.models)
|
|
self.assertIn(("test_rmwsrf", "horserider"), new_state.models)
|
|
# Remember, RenameModel also repoints all incoming FKs and M2Ms
|
|
self.assertEqual(
|
|
'self',
|
|
new_state.models["test_rmwsrf", "horserider"].fields[2][1].remote_field.model
|
|
)
|
|
HorseRider = new_state.apps.get_model('test_rmwsrf', 'horserider')
|
|
self.assertIs(HorseRider._meta.get_field('horserider').remote_field.model, HorseRider)
|
|
# Test the database alteration
|
|
self.assertTableExists("test_rmwsrf_rider")
|
|
self.assertTableNotExists("test_rmwsrf_horserider")
|
|
if connection.features.supports_foreign_keys:
|
|
self.assertFKExists("test_rmwsrf_rider", ["friend_id"], ("test_rmwsrf_rider", "id"))
|
|
self.assertFKNotExists("test_rmwsrf_rider", ["friend_id"], ("test_rmwsrf_horserider", "id"))
|
|
atomic_rename = connection.features.supports_atomic_references_rename
|
|
with connection.schema_editor(atomic=atomic_rename) as editor:
|
|
operation.database_forwards("test_rmwsrf", editor, project_state, new_state)
|
|
self.assertTableNotExists("test_rmwsrf_rider")
|
|
self.assertTableExists("test_rmwsrf_horserider")
|
|
if connection.features.supports_foreign_keys:
|
|
self.assertFKNotExists("test_rmwsrf_horserider", ["friend_id"], ("test_rmwsrf_rider", "id"))
|
|
self.assertFKExists("test_rmwsrf_horserider", ["friend_id"], ("test_rmwsrf_horserider", "id"))
|
|
# And test reversal
|
|
with connection.schema_editor(atomic=atomic_rename) as editor:
|
|
operation.database_backwards("test_rmwsrf", editor, new_state, project_state)
|
|
self.assertTableExists("test_rmwsrf_rider")
|
|
self.assertTableNotExists("test_rmwsrf_horserider")
|
|
if connection.features.supports_foreign_keys:
|
|
self.assertFKExists("test_rmwsrf_rider", ["friend_id"], ("test_rmwsrf_rider", "id"))
|
|
self.assertFKNotExists("test_rmwsrf_rider", ["friend_id"], ("test_rmwsrf_horserider", "id"))
|
|
|
|
def test_rename_model_with_superclass_fk(self):
|
|
"""
|
|
Tests the RenameModel operation on a model which has a superclass that
|
|
has a foreign key.
|
|
"""
|
|
project_state = self.set_up_test_model("test_rmwsc", related_model=True, mti_model=True)
|
|
# Test the state alteration
|
|
operation = migrations.RenameModel("ShetlandPony", "LittleHorse")
|
|
self.assertEqual(operation.describe(), "Rename model ShetlandPony to LittleHorse")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_rmwsc", new_state)
|
|
self.assertNotIn(("test_rmwsc", "shetlandpony"), new_state.models)
|
|
self.assertIn(("test_rmwsc", "littlehorse"), new_state.models)
|
|
# RenameModel shouldn't repoint the superclass's relations, only local ones
|
|
self.assertEqual(
|
|
project_state.models["test_rmwsc", "rider"].fields[1][1].remote_field.model,
|
|
new_state.models["test_rmwsc", "rider"].fields[1][1].remote_field.model
|
|
)
|
|
# Before running the migration we have a table for Shetland Pony, not Little Horse
|
|
self.assertTableExists("test_rmwsc_shetlandpony")
|
|
self.assertTableNotExists("test_rmwsc_littlehorse")
|
|
if connection.features.supports_foreign_keys:
|
|
# and the foreign key on rider points to pony, not shetland pony
|
|
self.assertFKExists("test_rmwsc_rider", ["pony_id"], ("test_rmwsc_pony", "id"))
|
|
self.assertFKNotExists("test_rmwsc_rider", ["pony_id"], ("test_rmwsc_shetlandpony", "id"))
|
|
with connection.schema_editor(atomic=connection.features.supports_atomic_references_rename) as editor:
|
|
operation.database_forwards("test_rmwsc", editor, project_state, new_state)
|
|
# Now we have a little horse table, not shetland pony
|
|
self.assertTableNotExists("test_rmwsc_shetlandpony")
|
|
self.assertTableExists("test_rmwsc_littlehorse")
|
|
if connection.features.supports_foreign_keys:
|
|
# but the Foreign keys still point at pony, not little horse
|
|
self.assertFKExists("test_rmwsc_rider", ["pony_id"], ("test_rmwsc_pony", "id"))
|
|
self.assertFKNotExists("test_rmwsc_rider", ["pony_id"], ("test_rmwsc_littlehorse", "id"))
|
|
|
|
def test_rename_model_with_self_referential_m2m(self):
|
|
app_label = "test_rename_model_with_self_referential_m2m"
|
|
|
|
project_state = self.apply_operations(app_label, ProjectState(), operations=[
|
|
migrations.CreateModel("ReflexivePony", fields=[
|
|
("id", models.AutoField(primary_key=True)),
|
|
("ponies", models.ManyToManyField("self")),
|
|
]),
|
|
])
|
|
project_state = self.apply_operations(app_label, project_state, operations=[
|
|
migrations.RenameModel("ReflexivePony", "ReflexivePony2"),
|
|
], atomic=connection.features.supports_atomic_references_rename)
|
|
Pony = project_state.apps.get_model(app_label, "ReflexivePony2")
|
|
pony = Pony.objects.create()
|
|
pony.ponies.add(pony)
|
|
|
|
def test_rename_model_with_m2m(self):
|
|
app_label = "test_rename_model_with_m2m"
|
|
project_state = self.apply_operations(app_label, ProjectState(), operations=[
|
|
migrations.CreateModel("Rider", fields=[
|
|
("id", models.AutoField(primary_key=True)),
|
|
]),
|
|
migrations.CreateModel("Pony", fields=[
|
|
("id", models.AutoField(primary_key=True)),
|
|
("riders", models.ManyToManyField("Rider")),
|
|
]),
|
|
])
|
|
Pony = project_state.apps.get_model(app_label, "Pony")
|
|
Rider = project_state.apps.get_model(app_label, "Rider")
|
|
pony = Pony.objects.create()
|
|
rider = Rider.objects.create()
|
|
pony.riders.add(rider)
|
|
|
|
project_state = self.apply_operations(app_label, project_state, operations=[
|
|
migrations.RenameModel("Pony", "Pony2"),
|
|
], atomic=connection.features.supports_atomic_references_rename)
|
|
Pony = project_state.apps.get_model(app_label, "Pony2")
|
|
Rider = project_state.apps.get_model(app_label, "Rider")
|
|
pony = Pony.objects.create()
|
|
rider = Rider.objects.create()
|
|
pony.riders.add(rider)
|
|
self.assertEqual(Pony.objects.count(), 2)
|
|
self.assertEqual(Rider.objects.count(), 2)
|
|
self.assertEqual(Pony._meta.get_field('riders').remote_field.through.objects.count(), 2)
|
|
|
|
def test_rename_m2m_target_model(self):
|
|
app_label = "test_rename_m2m_target_model"
|
|
project_state = self.apply_operations(app_label, ProjectState(), operations=[
|
|
migrations.CreateModel("Rider", fields=[
|
|
("id", models.AutoField(primary_key=True)),
|
|
]),
|
|
migrations.CreateModel("Pony", fields=[
|
|
("id", models.AutoField(primary_key=True)),
|
|
("riders", models.ManyToManyField("Rider")),
|
|
]),
|
|
])
|
|
Pony = project_state.apps.get_model(app_label, "Pony")
|
|
Rider = project_state.apps.get_model(app_label, "Rider")
|
|
pony = Pony.objects.create()
|
|
rider = Rider.objects.create()
|
|
pony.riders.add(rider)
|
|
|
|
project_state = self.apply_operations(app_label, project_state, operations=[
|
|
migrations.RenameModel("Rider", "Rider2"),
|
|
], atomic=connection.features.supports_atomic_references_rename)
|
|
Pony = project_state.apps.get_model(app_label, "Pony")
|
|
Rider = project_state.apps.get_model(app_label, "Rider2")
|
|
pony = Pony.objects.create()
|
|
rider = Rider.objects.create()
|
|
pony.riders.add(rider)
|
|
self.assertEqual(Pony.objects.count(), 2)
|
|
self.assertEqual(Rider.objects.count(), 2)
|
|
self.assertEqual(Pony._meta.get_field('riders').remote_field.through.objects.count(), 2)
|
|
|
|
def test_rename_m2m_through_model(self):
|
|
app_label = "test_rename_through"
|
|
project_state = self.apply_operations(app_label, ProjectState(), operations=[
|
|
migrations.CreateModel("Rider", fields=[
|
|
("id", models.AutoField(primary_key=True)),
|
|
]),
|
|
migrations.CreateModel("Pony", fields=[
|
|
("id", models.AutoField(primary_key=True)),
|
|
]),
|
|
migrations.CreateModel("PonyRider", fields=[
|
|
("id", models.AutoField(primary_key=True)),
|
|
("rider", models.ForeignKey("test_rename_through.Rider", models.CASCADE)),
|
|
("pony", models.ForeignKey("test_rename_through.Pony", models.CASCADE)),
|
|
]),
|
|
migrations.AddField(
|
|
"Pony",
|
|
"riders",
|
|
models.ManyToManyField("test_rename_through.Rider", through="test_rename_through.PonyRider"),
|
|
),
|
|
])
|
|
Pony = project_state.apps.get_model(app_label, "Pony")
|
|
Rider = project_state.apps.get_model(app_label, "Rider")
|
|
PonyRider = project_state.apps.get_model(app_label, "PonyRider")
|
|
pony = Pony.objects.create()
|
|
rider = Rider.objects.create()
|
|
PonyRider.objects.create(pony=pony, rider=rider)
|
|
|
|
project_state = self.apply_operations(app_label, project_state, operations=[
|
|
migrations.RenameModel("PonyRider", "PonyRider2"),
|
|
])
|
|
Pony = project_state.apps.get_model(app_label, "Pony")
|
|
Rider = project_state.apps.get_model(app_label, "Rider")
|
|
PonyRider = project_state.apps.get_model(app_label, "PonyRider2")
|
|
pony = Pony.objects.first()
|
|
rider = Rider.objects.create()
|
|
PonyRider.objects.create(pony=pony, rider=rider)
|
|
self.assertEqual(Pony.objects.count(), 1)
|
|
self.assertEqual(Rider.objects.count(), 2)
|
|
self.assertEqual(PonyRider.objects.count(), 2)
|
|
self.assertEqual(pony.riders.count(), 2)
|
|
|
|
def test_rename_m2m_model_after_rename_field(self):
|
|
"""RenameModel renames a many-to-many column after a RenameField."""
|
|
app_label = 'test_rename_multiple'
|
|
project_state = self.apply_operations(app_label, ProjectState(), operations=[
|
|
migrations.CreateModel('Pony', fields=[
|
|
('id', models.AutoField(primary_key=True)),
|
|
('name', models.CharField(max_length=20)),
|
|
]),
|
|
migrations.CreateModel('Rider', fields=[
|
|
('id', models.AutoField(primary_key=True)),
|
|
('pony', models.ForeignKey('test_rename_multiple.Pony', models.CASCADE)),
|
|
]),
|
|
migrations.CreateModel('PonyRider', fields=[
|
|
('id', models.AutoField(primary_key=True)),
|
|
('riders', models.ManyToManyField('Rider')),
|
|
]),
|
|
migrations.RenameField(model_name='pony', old_name='name', new_name='fancy_name'),
|
|
migrations.RenameModel(old_name='Rider', new_name='Jockey'),
|
|
], atomic=connection.features.supports_atomic_references_rename)
|
|
Pony = project_state.apps.get_model(app_label, 'Pony')
|
|
Jockey = project_state.apps.get_model(app_label, 'Jockey')
|
|
PonyRider = project_state.apps.get_model(app_label, 'PonyRider')
|
|
# No "no such column" error means the column was renamed correctly.
|
|
pony = Pony.objects.create(fancy_name='a good name')
|
|
jockey = Jockey.objects.create(pony=pony)
|
|
ponyrider = PonyRider.objects.create()
|
|
ponyrider.riders.add(jockey)
|
|
|
|
def test_add_field(self):
|
|
"""
|
|
Tests the AddField operation.
|
|
"""
|
|
# Test the state alteration
|
|
operation = migrations.AddField(
|
|
"Pony",
|
|
"height",
|
|
models.FloatField(null=True, default=5),
|
|
)
|
|
self.assertEqual(operation.describe(), "Add field height to Pony")
|
|
project_state, new_state = self.make_test_state("test_adfl", operation)
|
|
self.assertEqual(len(new_state.models["test_adfl", "pony"].fields), 4)
|
|
field = [
|
|
f for n, f in new_state.models["test_adfl", "pony"].fields
|
|
if n == "height"
|
|
][0]
|
|
self.assertEqual(field.default, 5)
|
|
# Test the database alteration
|
|
self.assertColumnNotExists("test_adfl_pony", "height")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_adfl", editor, project_state, new_state)
|
|
self.assertColumnExists("test_adfl_pony", "height")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_adfl", editor, new_state, project_state)
|
|
self.assertColumnNotExists("test_adfl_pony", "height")
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "AddField")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(sorted(definition[2]), ["field", "model_name", "name"])
|
|
|
|
def test_add_charfield(self):
|
|
"""
|
|
Tests the AddField operation on TextField.
|
|
"""
|
|
project_state = self.set_up_test_model("test_adchfl")
|
|
|
|
Pony = project_state.apps.get_model("test_adchfl", "Pony")
|
|
pony = Pony.objects.create(weight=42)
|
|
|
|
new_state = self.apply_operations("test_adchfl", project_state, [
|
|
migrations.AddField(
|
|
"Pony",
|
|
"text",
|
|
models.CharField(max_length=10, default="some text"),
|
|
),
|
|
migrations.AddField(
|
|
"Pony",
|
|
"empty",
|
|
models.CharField(max_length=10, default=""),
|
|
),
|
|
# If not properly quoted digits would be interpreted as an int.
|
|
migrations.AddField(
|
|
"Pony",
|
|
"digits",
|
|
models.CharField(max_length=10, default="42"),
|
|
),
|
|
# Manual quoting is fragile and could trip on quotes. Refs #xyz.
|
|
migrations.AddField(
|
|
"Pony",
|
|
"quotes",
|
|
models.CharField(max_length=10, default='"\'"'),
|
|
),
|
|
])
|
|
|
|
Pony = new_state.apps.get_model("test_adchfl", "Pony")
|
|
pony = Pony.objects.get(pk=pony.pk)
|
|
self.assertEqual(pony.text, "some text")
|
|
self.assertEqual(pony.empty, "")
|
|
self.assertEqual(pony.digits, "42")
|
|
self.assertEqual(pony.quotes, '"\'"')
|
|
|
|
def test_add_textfield(self):
|
|
"""
|
|
Tests the AddField operation on TextField.
|
|
"""
|
|
project_state = self.set_up_test_model("test_adtxtfl")
|
|
|
|
Pony = project_state.apps.get_model("test_adtxtfl", "Pony")
|
|
pony = Pony.objects.create(weight=42)
|
|
|
|
new_state = self.apply_operations("test_adtxtfl", project_state, [
|
|
migrations.AddField(
|
|
"Pony",
|
|
"text",
|
|
models.TextField(default="some text"),
|
|
),
|
|
migrations.AddField(
|
|
"Pony",
|
|
"empty",
|
|
models.TextField(default=""),
|
|
),
|
|
# If not properly quoted digits would be interpreted as an int.
|
|
migrations.AddField(
|
|
"Pony",
|
|
"digits",
|
|
models.TextField(default="42"),
|
|
),
|
|
# Manual quoting is fragile and could trip on quotes. Refs #xyz.
|
|
migrations.AddField(
|
|
"Pony",
|
|
"quotes",
|
|
models.TextField(default='"\'"'),
|
|
),
|
|
])
|
|
|
|
Pony = new_state.apps.get_model("test_adtxtfl", "Pony")
|
|
pony = Pony.objects.get(pk=pony.pk)
|
|
self.assertEqual(pony.text, "some text")
|
|
self.assertEqual(pony.empty, "")
|
|
self.assertEqual(pony.digits, "42")
|
|
self.assertEqual(pony.quotes, '"\'"')
|
|
|
|
def test_add_binaryfield(self):
|
|
"""
|
|
Tests the AddField operation on TextField/BinaryField.
|
|
"""
|
|
project_state = self.set_up_test_model("test_adbinfl")
|
|
|
|
Pony = project_state.apps.get_model("test_adbinfl", "Pony")
|
|
pony = Pony.objects.create(weight=42)
|
|
|
|
new_state = self.apply_operations("test_adbinfl", project_state, [
|
|
migrations.AddField(
|
|
"Pony",
|
|
"blob",
|
|
models.BinaryField(default=b"some text"),
|
|
),
|
|
migrations.AddField(
|
|
"Pony",
|
|
"empty",
|
|
models.BinaryField(default=b""),
|
|
),
|
|
# If not properly quoted digits would be interpreted as an int.
|
|
migrations.AddField(
|
|
"Pony",
|
|
"digits",
|
|
models.BinaryField(default=b"42"),
|
|
),
|
|
# Manual quoting is fragile and could trip on quotes. Refs #xyz.
|
|
migrations.AddField(
|
|
"Pony",
|
|
"quotes",
|
|
models.BinaryField(default=b'"\'"'),
|
|
),
|
|
])
|
|
|
|
Pony = new_state.apps.get_model("test_adbinfl", "Pony")
|
|
pony = Pony.objects.get(pk=pony.pk)
|
|
# SQLite returns buffer/memoryview, cast to bytes for checking.
|
|
self.assertEqual(bytes(pony.blob), b"some text")
|
|
self.assertEqual(bytes(pony.empty), b"")
|
|
self.assertEqual(bytes(pony.digits), b"42")
|
|
self.assertEqual(bytes(pony.quotes), b'"\'"')
|
|
|
|
def test_column_name_quoting(self):
|
|
"""
|
|
Column names that are SQL keywords shouldn't cause problems when used
|
|
in migrations (#22168).
|
|
"""
|
|
project_state = self.set_up_test_model("test_regr22168")
|
|
operation = migrations.AddField(
|
|
"Pony",
|
|
"order",
|
|
models.IntegerField(default=0),
|
|
)
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_regr22168", new_state)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_regr22168", editor, project_state, new_state)
|
|
self.assertColumnExists("test_regr22168_pony", "order")
|
|
|
|
def test_add_field_preserve_default(self):
|
|
"""
|
|
Tests the AddField operation's state alteration
|
|
when preserve_default = False.
|
|
"""
|
|
project_state = self.set_up_test_model("test_adflpd")
|
|
# Test the state alteration
|
|
operation = migrations.AddField(
|
|
"Pony",
|
|
"height",
|
|
models.FloatField(null=True, default=4),
|
|
preserve_default=False,
|
|
)
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_adflpd", new_state)
|
|
self.assertEqual(len(new_state.models["test_adflpd", "pony"].fields), 4)
|
|
field = [
|
|
f for n, f in new_state.models["test_adflpd", "pony"].fields
|
|
if n == "height"
|
|
][0]
|
|
self.assertEqual(field.default, NOT_PROVIDED)
|
|
# Test the database alteration
|
|
project_state.apps.get_model("test_adflpd", "pony").objects.create(
|
|
weight=4,
|
|
)
|
|
self.assertColumnNotExists("test_adflpd_pony", "height")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_adflpd", editor, project_state, new_state)
|
|
self.assertColumnExists("test_adflpd_pony", "height")
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "AddField")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(sorted(definition[2]), ["field", "model_name", "name", "preserve_default"])
|
|
|
|
def test_add_field_m2m(self):
|
|
"""
|
|
Tests the AddField operation with a ManyToManyField.
|
|
"""
|
|
project_state = self.set_up_test_model("test_adflmm", second_model=True)
|
|
# Test the state alteration
|
|
operation = migrations.AddField("Pony", "stables", models.ManyToManyField("Stable", related_name="ponies"))
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_adflmm", new_state)
|
|
self.assertEqual(len(new_state.models["test_adflmm", "pony"].fields), 4)
|
|
# Test the database alteration
|
|
self.assertTableNotExists("test_adflmm_pony_stables")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_adflmm", editor, project_state, new_state)
|
|
self.assertTableExists("test_adflmm_pony_stables")
|
|
self.assertColumnNotExists("test_adflmm_pony", "stables")
|
|
# Make sure the M2M field actually works
|
|
with atomic():
|
|
Pony = new_state.apps.get_model("test_adflmm", "Pony")
|
|
p = Pony.objects.create(pink=False, weight=4.55)
|
|
p.stables.create()
|
|
self.assertEqual(p.stables.count(), 1)
|
|
p.stables.all().delete()
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_adflmm", editor, new_state, project_state)
|
|
self.assertTableNotExists("test_adflmm_pony_stables")
|
|
|
|
def test_alter_field_m2m(self):
|
|
project_state = self.set_up_test_model("test_alflmm", second_model=True)
|
|
|
|
project_state = self.apply_operations("test_alflmm", project_state, operations=[
|
|
migrations.AddField("Pony", "stables", models.ManyToManyField("Stable", related_name="ponies"))
|
|
])
|
|
Pony = project_state.apps.get_model("test_alflmm", "Pony")
|
|
self.assertFalse(Pony._meta.get_field('stables').blank)
|
|
|
|
project_state = self.apply_operations("test_alflmm", project_state, operations=[
|
|
migrations.AlterField(
|
|
"Pony", "stables", models.ManyToManyField(to="Stable", related_name="ponies", blank=True)
|
|
)
|
|
])
|
|
Pony = project_state.apps.get_model("test_alflmm", "Pony")
|
|
self.assertTrue(Pony._meta.get_field('stables').blank)
|
|
|
|
def test_repoint_field_m2m(self):
|
|
project_state = self.set_up_test_model("test_alflmm", second_model=True, third_model=True)
|
|
|
|
project_state = self.apply_operations("test_alflmm", project_state, operations=[
|
|
migrations.AddField("Pony", "places", models.ManyToManyField("Stable", related_name="ponies"))
|
|
])
|
|
Pony = project_state.apps.get_model("test_alflmm", "Pony")
|
|
|
|
project_state = self.apply_operations("test_alflmm", project_state, operations=[
|
|
migrations.AlterField("Pony", "places", models.ManyToManyField(to="Van", related_name="ponies"))
|
|
])
|
|
|
|
# Ensure the new field actually works
|
|
Pony = project_state.apps.get_model("test_alflmm", "Pony")
|
|
p = Pony.objects.create(pink=False, weight=4.55)
|
|
p.places.create()
|
|
self.assertEqual(p.places.count(), 1)
|
|
p.places.all().delete()
|
|
|
|
def test_remove_field_m2m(self):
|
|
project_state = self.set_up_test_model("test_rmflmm", second_model=True)
|
|
|
|
project_state = self.apply_operations("test_rmflmm", project_state, operations=[
|
|
migrations.AddField("Pony", "stables", models.ManyToManyField("Stable", related_name="ponies"))
|
|
])
|
|
self.assertTableExists("test_rmflmm_pony_stables")
|
|
|
|
with_field_state = project_state.clone()
|
|
operations = [migrations.RemoveField("Pony", "stables")]
|
|
project_state = self.apply_operations("test_rmflmm", project_state, operations=operations)
|
|
self.assertTableNotExists("test_rmflmm_pony_stables")
|
|
|
|
# And test reversal
|
|
self.unapply_operations("test_rmflmm", with_field_state, operations=operations)
|
|
self.assertTableExists("test_rmflmm_pony_stables")
|
|
|
|
def test_remove_field_m2m_with_through(self):
|
|
project_state = self.set_up_test_model("test_rmflmmwt", second_model=True)
|
|
|
|
self.assertTableNotExists("test_rmflmmwt_ponystables")
|
|
project_state = self.apply_operations("test_rmflmmwt", project_state, operations=[
|
|
migrations.CreateModel("PonyStables", fields=[
|
|
("pony", models.ForeignKey('test_rmflmmwt.Pony', models.CASCADE)),
|
|
("stable", models.ForeignKey('test_rmflmmwt.Stable', models.CASCADE)),
|
|
]),
|
|
migrations.AddField(
|
|
"Pony", "stables",
|
|
models.ManyToManyField("Stable", related_name="ponies", through='test_rmflmmwt.PonyStables')
|
|
)
|
|
])
|
|
self.assertTableExists("test_rmflmmwt_ponystables")
|
|
|
|
operations = [migrations.RemoveField("Pony", "stables"), migrations.DeleteModel("PonyStables")]
|
|
self.apply_operations("test_rmflmmwt", project_state, operations=operations)
|
|
|
|
def test_remove_field(self):
|
|
"""
|
|
Tests the RemoveField operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_rmfl")
|
|
# Test the state alteration
|
|
operation = migrations.RemoveField("Pony", "pink")
|
|
self.assertEqual(operation.describe(), "Remove field pink from Pony")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_rmfl", new_state)
|
|
self.assertEqual(len(new_state.models["test_rmfl", "pony"].fields), 2)
|
|
# Test the database alteration
|
|
self.assertColumnExists("test_rmfl_pony", "pink")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_rmfl", editor, project_state, new_state)
|
|
self.assertColumnNotExists("test_rmfl_pony", "pink")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_rmfl", editor, new_state, project_state)
|
|
self.assertColumnExists("test_rmfl_pony", "pink")
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "RemoveField")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(definition[2], {'model_name': "Pony", 'name': 'pink'})
|
|
|
|
def test_remove_fk(self):
|
|
"""
|
|
Tests the RemoveField operation on a foreign key.
|
|
"""
|
|
project_state = self.set_up_test_model("test_rfk", related_model=True)
|
|
self.assertColumnExists("test_rfk_rider", "pony_id")
|
|
operation = migrations.RemoveField("Rider", "pony")
|
|
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_rfk", new_state)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_rfk", editor, project_state, new_state)
|
|
self.assertColumnNotExists("test_rfk_rider", "pony_id")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_rfk", editor, new_state, project_state)
|
|
self.assertColumnExists("test_rfk_rider", "pony_id")
|
|
|
|
def test_alter_model_table(self):
|
|
"""
|
|
Tests the AlterModelTable operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_almota")
|
|
# Test the state alteration
|
|
operation = migrations.AlterModelTable("Pony", "test_almota_pony_2")
|
|
self.assertEqual(operation.describe(), "Rename table for Pony to test_almota_pony_2")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_almota", new_state)
|
|
self.assertEqual(new_state.models["test_almota", "pony"].options["db_table"], "test_almota_pony_2")
|
|
# Test the database alteration
|
|
self.assertTableExists("test_almota_pony")
|
|
self.assertTableNotExists("test_almota_pony_2")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_almota", editor, project_state, new_state)
|
|
self.assertTableNotExists("test_almota_pony")
|
|
self.assertTableExists("test_almota_pony_2")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_almota", editor, new_state, project_state)
|
|
self.assertTableExists("test_almota_pony")
|
|
self.assertTableNotExists("test_almota_pony_2")
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "AlterModelTable")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(definition[2], {'name': "Pony", 'table': "test_almota_pony_2"})
|
|
|
|
def test_alter_model_table_none(self):
|
|
"""
|
|
Tests the AlterModelTable operation if the table name is set to None.
|
|
"""
|
|
operation = migrations.AlterModelTable("Pony", None)
|
|
self.assertEqual(operation.describe(), "Rename table for Pony to (default)")
|
|
|
|
def test_alter_model_table_noop(self):
|
|
"""
|
|
Tests the AlterModelTable operation if the table name is not changed.
|
|
"""
|
|
project_state = self.set_up_test_model("test_almota")
|
|
# Test the state alteration
|
|
operation = migrations.AlterModelTable("Pony", "test_almota_pony")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_almota", new_state)
|
|
self.assertEqual(new_state.models["test_almota", "pony"].options["db_table"], "test_almota_pony")
|
|
# Test the database alteration
|
|
self.assertTableExists("test_almota_pony")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_almota", editor, project_state, new_state)
|
|
self.assertTableExists("test_almota_pony")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_almota", editor, new_state, project_state)
|
|
self.assertTableExists("test_almota_pony")
|
|
|
|
def test_alter_model_table_m2m(self):
|
|
"""
|
|
AlterModelTable should rename auto-generated M2M tables.
|
|
"""
|
|
app_label = "test_talflmltlm2m"
|
|
pony_db_table = 'pony_foo'
|
|
project_state = self.set_up_test_model(app_label, second_model=True, db_table=pony_db_table)
|
|
# Add the M2M field
|
|
first_state = project_state.clone()
|
|
operation = migrations.AddField("Pony", "stables", models.ManyToManyField("Stable"))
|
|
operation.state_forwards(app_label, first_state)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards(app_label, editor, project_state, first_state)
|
|
original_m2m_table = "%s_%s" % (pony_db_table, "stables")
|
|
new_m2m_table = "%s_%s" % (app_label, "pony_stables")
|
|
self.assertTableExists(original_m2m_table)
|
|
self.assertTableNotExists(new_m2m_table)
|
|
# Rename the Pony db_table which should also rename the m2m table.
|
|
second_state = first_state.clone()
|
|
operation = migrations.AlterModelTable(name='pony', table=None)
|
|
operation.state_forwards(app_label, second_state)
|
|
atomic_rename = connection.features.supports_atomic_references_rename
|
|
with connection.schema_editor(atomic=atomic_rename) as editor:
|
|
operation.database_forwards(app_label, editor, first_state, second_state)
|
|
self.assertTableExists(new_m2m_table)
|
|
self.assertTableNotExists(original_m2m_table)
|
|
# And test reversal
|
|
with connection.schema_editor(atomic=atomic_rename) as editor:
|
|
operation.database_backwards(app_label, editor, second_state, first_state)
|
|
self.assertTableExists(original_m2m_table)
|
|
self.assertTableNotExists(new_m2m_table)
|
|
|
|
def test_alter_field(self):
|
|
"""
|
|
Tests the AlterField operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_alfl")
|
|
# Test the state alteration
|
|
operation = migrations.AlterField("Pony", "pink", models.IntegerField(null=True))
|
|
self.assertEqual(operation.describe(), "Alter field pink on Pony")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_alfl", new_state)
|
|
self.assertIs(project_state.models["test_alfl", "pony"].get_field_by_name("pink").null, False)
|
|
self.assertIs(new_state.models["test_alfl", "pony"].get_field_by_name("pink").null, True)
|
|
# Test the database alteration
|
|
self.assertColumnNotNull("test_alfl_pony", "pink")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_alfl", editor, project_state, new_state)
|
|
self.assertColumnNull("test_alfl_pony", "pink")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_alfl", editor, new_state, project_state)
|
|
self.assertColumnNotNull("test_alfl_pony", "pink")
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "AlterField")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(sorted(definition[2]), ["field", "model_name", "name"])
|
|
|
|
def test_alter_field_pk(self):
|
|
"""
|
|
Tests the AlterField operation on primary keys (for things like PostgreSQL's SERIAL weirdness)
|
|
"""
|
|
project_state = self.set_up_test_model("test_alflpk")
|
|
# Test the state alteration
|
|
operation = migrations.AlterField("Pony", "id", models.IntegerField(primary_key=True))
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_alflpk", new_state)
|
|
self.assertIsInstance(project_state.models["test_alflpk", "pony"].get_field_by_name("id"), models.AutoField)
|
|
self.assertIsInstance(new_state.models["test_alflpk", "pony"].get_field_by_name("id"), models.IntegerField)
|
|
# Test the database alteration
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_alflpk", editor, project_state, new_state)
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_alflpk", editor, new_state, project_state)
|
|
|
|
@skipUnlessDBFeature('supports_foreign_keys')
|
|
def test_alter_field_pk_fk(self):
|
|
"""
|
|
Tests the AlterField operation on primary keys changes any FKs pointing to it.
|
|
"""
|
|
project_state = self.set_up_test_model("test_alflpkfk", related_model=True)
|
|
# Test the state alteration
|
|
operation = migrations.AlterField("Pony", "id", models.FloatField(primary_key=True))
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_alflpkfk", new_state)
|
|
self.assertIsInstance(project_state.models["test_alflpkfk", "pony"].get_field_by_name("id"), models.AutoField)
|
|
self.assertIsInstance(new_state.models["test_alflpkfk", "pony"].get_field_by_name("id"), models.FloatField)
|
|
|
|
def assertIdTypeEqualsFkType():
|
|
with connection.cursor() as cursor:
|
|
id_type, id_null = [
|
|
(c.type_code, c.null_ok)
|
|
for c in connection.introspection.get_table_description(cursor, "test_alflpkfk_pony")
|
|
if c.name == "id"
|
|
][0]
|
|
fk_type, fk_null = [
|
|
(c.type_code, c.null_ok)
|
|
for c in connection.introspection.get_table_description(cursor, "test_alflpkfk_rider")
|
|
if c.name == "pony_id"
|
|
][0]
|
|
self.assertEqual(id_type, fk_type)
|
|
self.assertEqual(id_null, fk_null)
|
|
|
|
assertIdTypeEqualsFkType()
|
|
# Test the database alteration
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_alflpkfk", editor, project_state, new_state)
|
|
assertIdTypeEqualsFkType()
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_alflpkfk", editor, new_state, project_state)
|
|
assertIdTypeEqualsFkType()
|
|
|
|
def test_alter_field_reloads_state_on_fk_target_changes(self):
|
|
"""
|
|
If AlterField doesn't reload state appropriately, the second AlterField
|
|
crashes on MySQL due to not dropping the PonyRider.pony foreign key
|
|
constraint before modifying the column.
|
|
"""
|
|
app_label = 'alter_alter_field_reloads_state_on_fk_target_changes'
|
|
project_state = self.apply_operations(app_label, ProjectState(), operations=[
|
|
migrations.CreateModel('Rider', fields=[
|
|
('id', models.CharField(primary_key=True, max_length=100)),
|
|
]),
|
|
migrations.CreateModel('Pony', fields=[
|
|
('id', models.CharField(primary_key=True, max_length=100)),
|
|
('rider', models.ForeignKey('%s.Rider' % app_label, models.CASCADE)),
|
|
]),
|
|
migrations.CreateModel('PonyRider', fields=[
|
|
('id', models.AutoField(primary_key=True)),
|
|
('pony', models.ForeignKey('%s.Pony' % app_label, models.CASCADE)),
|
|
]),
|
|
])
|
|
project_state = self.apply_operations(app_label, project_state, operations=[
|
|
migrations.AlterField('Rider', 'id', models.CharField(primary_key=True, max_length=99)),
|
|
migrations.AlterField('Pony', 'id', models.CharField(primary_key=True, max_length=99)),
|
|
])
|
|
|
|
def test_alter_field_reloads_state_on_fk_with_to_field_target_changes(self):
|
|
"""
|
|
If AlterField doesn't reload state appropriately, the second AlterField
|
|
crashes on MySQL due to not dropping the PonyRider.pony foreign key
|
|
constraint before modifying the column.
|
|
"""
|
|
app_label = 'alter_alter_field_reloads_state_on_fk_with_to_field_target_changes'
|
|
project_state = self.apply_operations(app_label, ProjectState(), operations=[
|
|
migrations.CreateModel('Rider', fields=[
|
|
('id', models.CharField(primary_key=True, max_length=100)),
|
|
('slug', models.CharField(unique=True, max_length=100)),
|
|
]),
|
|
migrations.CreateModel('Pony', fields=[
|
|
('id', models.CharField(primary_key=True, max_length=100)),
|
|
('rider', models.ForeignKey('%s.Rider' % app_label, models.CASCADE, to_field='slug')),
|
|
('slug', models.CharField(unique=True, max_length=100)),
|
|
]),
|
|
migrations.CreateModel('PonyRider', fields=[
|
|
('id', models.AutoField(primary_key=True)),
|
|
('pony', models.ForeignKey('%s.Pony' % app_label, models.CASCADE, to_field='slug')),
|
|
]),
|
|
])
|
|
project_state = self.apply_operations(app_label, project_state, operations=[
|
|
migrations.AlterField('Rider', 'slug', models.CharField(unique=True, max_length=99)),
|
|
migrations.AlterField('Pony', 'slug', models.CharField(unique=True, max_length=99)),
|
|
])
|
|
|
|
def test_rename_field_reloads_state_on_fk_target_changes(self):
|
|
"""
|
|
If RenameField doesn't reload state appropriately, the AlterField
|
|
crashes on MySQL due to not dropping the PonyRider.pony foreign key
|
|
constraint before modifying the column.
|
|
"""
|
|
app_label = 'alter_rename_field_reloads_state_on_fk_target_changes'
|
|
project_state = self.apply_operations(app_label, ProjectState(), operations=[
|
|
migrations.CreateModel('Rider', fields=[
|
|
('id', models.CharField(primary_key=True, max_length=100)),
|
|
]),
|
|
migrations.CreateModel('Pony', fields=[
|
|
('id', models.CharField(primary_key=True, max_length=100)),
|
|
('rider', models.ForeignKey('%s.Rider' % app_label, models.CASCADE)),
|
|
]),
|
|
migrations.CreateModel('PonyRider', fields=[
|
|
('id', models.AutoField(primary_key=True)),
|
|
('pony', models.ForeignKey('%s.Pony' % app_label, models.CASCADE)),
|
|
]),
|
|
])
|
|
project_state = self.apply_operations(app_label, project_state, operations=[
|
|
migrations.RenameField('Rider', 'id', 'id2'),
|
|
migrations.AlterField('Pony', 'id', models.CharField(primary_key=True, max_length=99)),
|
|
], atomic=connection.features.supports_atomic_references_rename)
|
|
|
|
def test_rename_field(self):
|
|
"""
|
|
Tests the RenameField operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_rnfl", unique_together=True, index_together=True)
|
|
# Test the state alteration
|
|
operation = migrations.RenameField("Pony", "pink", "blue")
|
|
self.assertEqual(operation.describe(), "Rename field pink on Pony to blue")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_rnfl", new_state)
|
|
self.assertIn("blue", [n for n, f in new_state.models["test_rnfl", "pony"].fields])
|
|
self.assertNotIn("pink", [n for n, f in new_state.models["test_rnfl", "pony"].fields])
|
|
# Make sure the unique_together has the renamed column too
|
|
self.assertIn("blue", new_state.models["test_rnfl", "pony"].options['unique_together'][0])
|
|
self.assertNotIn("pink", new_state.models["test_rnfl", "pony"].options['unique_together'][0])
|
|
# Make sure the index_together has the renamed column too
|
|
self.assertIn("blue", new_state.models["test_rnfl", "pony"].options['index_together'][0])
|
|
self.assertNotIn("pink", new_state.models["test_rnfl", "pony"].options['index_together'][0])
|
|
# Test the database alteration
|
|
self.assertColumnExists("test_rnfl_pony", "pink")
|
|
self.assertColumnNotExists("test_rnfl_pony", "blue")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_rnfl", editor, project_state, new_state)
|
|
self.assertColumnExists("test_rnfl_pony", "blue")
|
|
self.assertColumnNotExists("test_rnfl_pony", "pink")
|
|
# Ensure the unique constraint has been ported over
|
|
with connection.cursor() as cursor:
|
|
cursor.execute("INSERT INTO test_rnfl_pony (blue, weight) VALUES (1, 1)")
|
|
with self.assertRaises(IntegrityError):
|
|
with atomic():
|
|
cursor.execute("INSERT INTO test_rnfl_pony (blue, weight) VALUES (1, 1)")
|
|
cursor.execute("DELETE FROM test_rnfl_pony")
|
|
# Ensure the index constraint has been ported over
|
|
self.assertIndexExists("test_rnfl_pony", ["weight", "blue"])
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_rnfl", editor, new_state, project_state)
|
|
self.assertColumnExists("test_rnfl_pony", "pink")
|
|
self.assertColumnNotExists("test_rnfl_pony", "blue")
|
|
# Ensure the index constraint has been reset
|
|
self.assertIndexExists("test_rnfl_pony", ["weight", "pink"])
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "RenameField")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(definition[2], {'model_name': "Pony", 'old_name': "pink", 'new_name': "blue"})
|
|
|
|
def test_rename_missing_field(self):
|
|
state = ProjectState()
|
|
state.add_model(ModelState('app', 'model', []))
|
|
with self.assertRaisesMessage(FieldDoesNotExist, "app.model has no field named 'field'"):
|
|
migrations.RenameField('model', 'field', 'new_field').state_forwards('app', state)
|
|
|
|
def test_rename_referenced_field_state_forward(self):
|
|
state = ProjectState()
|
|
state.add_model(ModelState('app', 'Model', [
|
|
('id', models.AutoField(primary_key=True)),
|
|
('field', models.IntegerField(unique=True)),
|
|
]))
|
|
state.add_model(ModelState('app', 'OtherModel', [
|
|
('id', models.AutoField(primary_key=True)),
|
|
('fk', models.ForeignKey('Model', models.CASCADE, to_field='field')),
|
|
('fo', models.ForeignObject('Model', models.CASCADE, from_fields=('fk',), to_fields=('field',))),
|
|
]))
|
|
operation = migrations.RenameField('Model', 'field', 'renamed')
|
|
new_state = state.clone()
|
|
operation.state_forwards('app', new_state)
|
|
self.assertEqual(new_state.models['app', 'othermodel'].fields[1][1].remote_field.field_name, 'renamed')
|
|
self.assertEqual(new_state.models['app', 'othermodel'].fields[1][1].from_fields, ['self'])
|
|
self.assertEqual(new_state.models['app', 'othermodel'].fields[1][1].to_fields, ('renamed',))
|
|
self.assertEqual(new_state.models['app', 'othermodel'].fields[2][1].from_fields, ('fk',))
|
|
self.assertEqual(new_state.models['app', 'othermodel'].fields[2][1].to_fields, ('renamed',))
|
|
operation = migrations.RenameField('OtherModel', 'fk', 'renamed_fk')
|
|
new_state = state.clone()
|
|
operation.state_forwards('app', new_state)
|
|
self.assertEqual(new_state.models['app', 'othermodel'].fields[1][1].remote_field.field_name, 'renamed')
|
|
self.assertEqual(new_state.models['app', 'othermodel'].fields[1][1].from_fields, ('self',))
|
|
self.assertEqual(new_state.models['app', 'othermodel'].fields[1][1].to_fields, ('renamed',))
|
|
self.assertEqual(new_state.models['app', 'othermodel'].fields[2][1].from_fields, ('renamed_fk',))
|
|
self.assertEqual(new_state.models['app', 'othermodel'].fields[2][1].to_fields, ('renamed',))
|
|
|
|
def test_alter_unique_together(self):
|
|
"""
|
|
Tests the AlterUniqueTogether operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_alunto")
|
|
# Test the state alteration
|
|
operation = migrations.AlterUniqueTogether("Pony", [("pink", "weight")])
|
|
self.assertEqual(operation.describe(), "Alter unique_together for Pony (1 constraint(s))")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_alunto", new_state)
|
|
self.assertEqual(len(project_state.models["test_alunto", "pony"].options.get("unique_together", set())), 0)
|
|
self.assertEqual(len(new_state.models["test_alunto", "pony"].options.get("unique_together", set())), 1)
|
|
# Make sure we can insert duplicate rows
|
|
with connection.cursor() as cursor:
|
|
cursor.execute("INSERT INTO test_alunto_pony (pink, weight) VALUES (1, 1)")
|
|
cursor.execute("INSERT INTO test_alunto_pony (pink, weight) VALUES (1, 1)")
|
|
cursor.execute("DELETE FROM test_alunto_pony")
|
|
# Test the database alteration
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_alunto", editor, project_state, new_state)
|
|
cursor.execute("INSERT INTO test_alunto_pony (pink, weight) VALUES (1, 1)")
|
|
with self.assertRaises(IntegrityError):
|
|
with atomic():
|
|
cursor.execute("INSERT INTO test_alunto_pony (pink, weight) VALUES (1, 1)")
|
|
cursor.execute("DELETE FROM test_alunto_pony")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_alunto", editor, new_state, project_state)
|
|
cursor.execute("INSERT INTO test_alunto_pony (pink, weight) VALUES (1, 1)")
|
|
cursor.execute("INSERT INTO test_alunto_pony (pink, weight) VALUES (1, 1)")
|
|
cursor.execute("DELETE FROM test_alunto_pony")
|
|
# Test flat unique_together
|
|
operation = migrations.AlterUniqueTogether("Pony", ("pink", "weight"))
|
|
operation.state_forwards("test_alunto", new_state)
|
|
self.assertEqual(len(new_state.models["test_alunto", "pony"].options.get("unique_together", set())), 1)
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "AlterUniqueTogether")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(definition[2], {'name': "Pony", 'unique_together': {("pink", "weight")}})
|
|
|
|
def test_alter_unique_together_remove(self):
|
|
operation = migrations.AlterUniqueTogether("Pony", None)
|
|
self.assertEqual(operation.describe(), "Alter unique_together for Pony (0 constraint(s))")
|
|
|
|
def test_add_index(self):
|
|
"""
|
|
Test the AddIndex operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_adin")
|
|
msg = (
|
|
"Indexes passed to AddIndex operations require a name argument. "
|
|
"<Index: fields='pink'> doesn't have one."
|
|
)
|
|
with self.assertRaisesMessage(ValueError, msg):
|
|
migrations.AddIndex("Pony", models.Index(fields=["pink"]))
|
|
index = models.Index(fields=["pink"], name="test_adin_pony_pink_idx")
|
|
operation = migrations.AddIndex("Pony", index)
|
|
self.assertEqual(operation.describe(), "Create index test_adin_pony_pink_idx on field(s) pink of model Pony")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_adin", new_state)
|
|
# Test the database alteration
|
|
self.assertEqual(len(new_state.models["test_adin", "pony"].options['indexes']), 1)
|
|
self.assertIndexNotExists("test_adin_pony", ["pink"])
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_adin", editor, project_state, new_state)
|
|
self.assertIndexExists("test_adin_pony", ["pink"])
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_adin", editor, new_state, project_state)
|
|
self.assertIndexNotExists("test_adin_pony", ["pink"])
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "AddIndex")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(definition[2], {'model_name': "Pony", 'index': index})
|
|
|
|
def test_remove_index(self):
|
|
"""
|
|
Test the RemoveIndex operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_rmin", multicol_index=True)
|
|
self.assertTableExists("test_rmin_pony")
|
|
self.assertIndexExists("test_rmin_pony", ["pink", "weight"])
|
|
operation = migrations.RemoveIndex("Pony", "pony_test_idx")
|
|
self.assertEqual(operation.describe(), "Remove index pony_test_idx from Pony")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_rmin", new_state)
|
|
# Test the state alteration
|
|
self.assertEqual(len(new_state.models["test_rmin", "pony"].options['indexes']), 0)
|
|
self.assertIndexExists("test_rmin_pony", ["pink", "weight"])
|
|
# Test the database alteration
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_rmin", editor, project_state, new_state)
|
|
self.assertIndexNotExists("test_rmin_pony", ["pink", "weight"])
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_rmin", editor, new_state, project_state)
|
|
self.assertIndexExists("test_rmin_pony", ["pink", "weight"])
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "RemoveIndex")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(definition[2], {'model_name': "Pony", 'name': "pony_test_idx"})
|
|
|
|
# Also test a field dropped with index - sqlite remake issue
|
|
operations = [
|
|
migrations.RemoveIndex("Pony", "pony_test_idx"),
|
|
migrations.RemoveField("Pony", "pink"),
|
|
]
|
|
self.assertColumnExists("test_rmin_pony", "pink")
|
|
self.assertIndexExists("test_rmin_pony", ["pink", "weight"])
|
|
# Test database alteration
|
|
new_state = project_state.clone()
|
|
self.apply_operations('test_rmin', new_state, operations=operations)
|
|
self.assertColumnNotExists("test_rmin_pony", "pink")
|
|
self.assertIndexNotExists("test_rmin_pony", ["pink", "weight"])
|
|
# And test reversal
|
|
self.unapply_operations("test_rmin", project_state, operations=operations)
|
|
self.assertIndexExists("test_rmin_pony", ["pink", "weight"])
|
|
|
|
def test_add_index_state_forwards(self):
|
|
project_state = self.set_up_test_model('test_adinsf')
|
|
index = models.Index(fields=['pink'], name='test_adinsf_pony_pink_idx')
|
|
old_model = project_state.apps.get_model('test_adinsf', 'Pony')
|
|
new_state = project_state.clone()
|
|
|
|
operation = migrations.AddIndex('Pony', index)
|
|
operation.state_forwards('test_adinsf', new_state)
|
|
new_model = new_state.apps.get_model('test_adinsf', 'Pony')
|
|
self.assertIsNot(old_model, new_model)
|
|
|
|
def test_remove_index_state_forwards(self):
|
|
project_state = self.set_up_test_model('test_rminsf')
|
|
index = models.Index(fields=['pink'], name='test_rminsf_pony_pink_idx')
|
|
migrations.AddIndex('Pony', index).state_forwards('test_rminsf', project_state)
|
|
old_model = project_state.apps.get_model('test_rminsf', 'Pony')
|
|
new_state = project_state.clone()
|
|
|
|
operation = migrations.RemoveIndex('Pony', 'test_rminsf_pony_pink_idx')
|
|
operation.state_forwards('test_rminsf', new_state)
|
|
new_model = new_state.apps.get_model('test_rminsf', 'Pony')
|
|
self.assertIsNot(old_model, new_model)
|
|
|
|
def test_alter_field_with_index(self):
|
|
"""
|
|
Test AlterField operation with an index to ensure indexes created via
|
|
Meta.indexes don't get dropped with sqlite3 remake.
|
|
"""
|
|
project_state = self.set_up_test_model("test_alflin", index=True)
|
|
operation = migrations.AlterField("Pony", "pink", models.IntegerField(null=True))
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_alflin", new_state)
|
|
# Test the database alteration
|
|
self.assertColumnNotNull("test_alflin_pony", "pink")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_alflin", editor, project_state, new_state)
|
|
# Index hasn't been dropped
|
|
self.assertIndexExists("test_alflin_pony", ["pink"])
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_alflin", editor, new_state, project_state)
|
|
# Ensure the index is still there
|
|
self.assertIndexExists("test_alflin_pony", ["pink"])
|
|
|
|
def test_alter_index_together(self):
|
|
"""
|
|
Tests the AlterIndexTogether operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_alinto")
|
|
# Test the state alteration
|
|
operation = migrations.AlterIndexTogether("Pony", [("pink", "weight")])
|
|
self.assertEqual(operation.describe(), "Alter index_together for Pony (1 constraint(s))")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_alinto", new_state)
|
|
self.assertEqual(len(project_state.models["test_alinto", "pony"].options.get("index_together", set())), 0)
|
|
self.assertEqual(len(new_state.models["test_alinto", "pony"].options.get("index_together", set())), 1)
|
|
# Make sure there's no matching index
|
|
self.assertIndexNotExists("test_alinto_pony", ["pink", "weight"])
|
|
# Test the database alteration
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_alinto", editor, project_state, new_state)
|
|
self.assertIndexExists("test_alinto_pony", ["pink", "weight"])
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_alinto", editor, new_state, project_state)
|
|
self.assertIndexNotExists("test_alinto_pony", ["pink", "weight"])
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "AlterIndexTogether")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(definition[2], {'name': "Pony", 'index_together': {("pink", "weight")}})
|
|
|
|
def test_alter_index_together_remove(self):
|
|
operation = migrations.AlterIndexTogether("Pony", None)
|
|
self.assertEqual(operation.describe(), "Alter index_together for Pony (0 constraint(s))")
|
|
|
|
@skipUnlessDBFeature('supports_table_check_constraints')
|
|
def test_add_constraint(self):
|
|
project_state = self.set_up_test_model("test_addconstraint")
|
|
gt_check = models.Q(pink__gt=2)
|
|
gt_constraint = models.CheckConstraint(check=gt_check, name="test_add_constraint_pony_pink_gt_2")
|
|
gt_operation = migrations.AddConstraint("Pony", gt_constraint)
|
|
self.assertEqual(
|
|
gt_operation.describe(), "Create constraint test_add_constraint_pony_pink_gt_2 on model Pony"
|
|
)
|
|
# Test the state alteration
|
|
new_state = project_state.clone()
|
|
gt_operation.state_forwards("test_addconstraint", new_state)
|
|
self.assertEqual(len(new_state.models["test_addconstraint", "pony"].options["constraints"]), 1)
|
|
Pony = new_state.apps.get_model("test_addconstraint", "Pony")
|
|
self.assertEqual(len(Pony._meta.constraints), 1)
|
|
# Test the database alteration
|
|
with connection.schema_editor() as editor:
|
|
gt_operation.database_forwards("test_addconstraint", editor, project_state, new_state)
|
|
with self.assertRaises(IntegrityError), transaction.atomic():
|
|
Pony.objects.create(pink=1, weight=1.0)
|
|
# Add another one.
|
|
lt_check = models.Q(pink__lt=100)
|
|
lt_constraint = models.CheckConstraint(check=lt_check, name="test_add_constraint_pony_pink_lt_100")
|
|
lt_operation = migrations.AddConstraint("Pony", lt_constraint)
|
|
lt_operation.state_forwards("test_addconstraint", new_state)
|
|
self.assertEqual(len(new_state.models["test_addconstraint", "pony"].options["constraints"]), 2)
|
|
Pony = new_state.apps.get_model("test_addconstraint", "Pony")
|
|
self.assertEqual(len(Pony._meta.constraints), 2)
|
|
with connection.schema_editor() as editor:
|
|
lt_operation.database_forwards("test_addconstraint", editor, project_state, new_state)
|
|
with self.assertRaises(IntegrityError), transaction.atomic():
|
|
Pony.objects.create(pink=100, weight=1.0)
|
|
# Test reversal
|
|
with connection.schema_editor() as editor:
|
|
gt_operation.database_backwards("test_addconstraint", editor, new_state, project_state)
|
|
Pony.objects.create(pink=1, weight=1.0)
|
|
# Test deconstruction
|
|
definition = gt_operation.deconstruct()
|
|
self.assertEqual(definition[0], "AddConstraint")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(definition[2], {'model_name': "Pony", 'constraint': gt_constraint})
|
|
|
|
@skipUnlessDBFeature('supports_table_check_constraints')
|
|
def test_remove_constraint(self):
|
|
project_state = self.set_up_test_model("test_removeconstraint", constraints=[
|
|
models.CheckConstraint(check=models.Q(pink__gt=2), name="test_remove_constraint_pony_pink_gt_2"),
|
|
models.CheckConstraint(check=models.Q(pink__lt=100), name="test_remove_constraint_pony_pink_lt_100"),
|
|
])
|
|
gt_operation = migrations.RemoveConstraint("Pony", "test_remove_constraint_pony_pink_gt_2")
|
|
self.assertEqual(
|
|
gt_operation.describe(), "Remove constraint test_remove_constraint_pony_pink_gt_2 from model Pony"
|
|
)
|
|
# Test state alteration
|
|
new_state = project_state.clone()
|
|
gt_operation.state_forwards("test_removeconstraint", new_state)
|
|
self.assertEqual(len(new_state.models["test_removeconstraint", "pony"].options['constraints']), 1)
|
|
Pony = new_state.apps.get_model("test_removeconstraint", "Pony")
|
|
self.assertEqual(len(Pony._meta.constraints), 1)
|
|
# Test database alteration
|
|
with connection.schema_editor() as editor:
|
|
gt_operation.database_forwards("test_removeconstraint", editor, project_state, new_state)
|
|
Pony.objects.create(pink=1, weight=1.0).delete()
|
|
with self.assertRaises(IntegrityError), transaction.atomic():
|
|
Pony.objects.create(pink=100, weight=1.0)
|
|
# Remove the other one.
|
|
lt_operation = migrations.RemoveConstraint("Pony", "test_remove_constraint_pony_pink_lt_100")
|
|
lt_operation.state_forwards("test_removeconstraint", new_state)
|
|
self.assertEqual(len(new_state.models["test_removeconstraint", "pony"].options['constraints']), 0)
|
|
Pony = new_state.apps.get_model("test_removeconstraint", "Pony")
|
|
self.assertEqual(len(Pony._meta.constraints), 0)
|
|
with connection.schema_editor() as editor:
|
|
lt_operation.database_forwards("test_removeconstraint", editor, project_state, new_state)
|
|
Pony.objects.create(pink=100, weight=1.0).delete()
|
|
# Test reversal
|
|
with connection.schema_editor() as editor:
|
|
gt_operation.database_backwards("test_removeconstraint", editor, new_state, project_state)
|
|
with self.assertRaises(IntegrityError), transaction.atomic():
|
|
Pony.objects.create(pink=1, weight=1.0)
|
|
# Test deconstruction
|
|
definition = gt_operation.deconstruct()
|
|
self.assertEqual(definition[0], "RemoveConstraint")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(definition[2], {'model_name': "Pony", 'name': "test_remove_constraint_pony_pink_gt_2"})
|
|
|
|
def test_add_partial_unique_constraint(self):
|
|
project_state = self.set_up_test_model('test_addpartialuniqueconstraint')
|
|
partial_unique_constraint = models.UniqueConstraint(
|
|
fields=['pink'],
|
|
condition=models.Q(weight__gt=5),
|
|
name='test_constraint_pony_pink_for_weight_gt_5_uniq',
|
|
)
|
|
operation = migrations.AddConstraint('Pony', partial_unique_constraint)
|
|
self.assertEqual(
|
|
operation.describe(),
|
|
'Create constraint test_constraint_pony_pink_for_weight_gt_5_uniq '
|
|
'on model Pony'
|
|
)
|
|
# Test the state alteration
|
|
new_state = project_state.clone()
|
|
operation.state_forwards('test_addpartialuniqueconstraint', new_state)
|
|
self.assertEqual(len(new_state.models['test_addpartialuniqueconstraint', 'pony'].options['constraints']), 1)
|
|
Pony = new_state.apps.get_model('test_addpartialuniqueconstraint', 'Pony')
|
|
self.assertEqual(len(Pony._meta.constraints), 1)
|
|
# Test the database alteration
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards('test_addpartialuniqueconstraint', editor, project_state, new_state)
|
|
# Test constraint works
|
|
Pony.objects.create(pink=1, weight=4.0)
|
|
Pony.objects.create(pink=1, weight=4.0)
|
|
Pony.objects.create(pink=1, weight=6.0)
|
|
if connection.features.supports_partial_indexes:
|
|
with self.assertRaises(IntegrityError), transaction.atomic():
|
|
Pony.objects.create(pink=1, weight=7.0)
|
|
else:
|
|
Pony.objects.create(pink=1, weight=7.0)
|
|
# Test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards('test_addpartialuniqueconstraint', editor, new_state, project_state)
|
|
# Test constraint doesn't work
|
|
Pony.objects.create(pink=1, weight=7.0)
|
|
# Test deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], 'AddConstraint')
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(definition[2], {'model_name': 'Pony', 'constraint': partial_unique_constraint})
|
|
|
|
def test_remove_partial_unique_constraint(self):
|
|
project_state = self.set_up_test_model('test_removepartialuniqueconstraint', constraints=[
|
|
models.UniqueConstraint(
|
|
fields=['pink'],
|
|
condition=models.Q(weight__gt=5),
|
|
name='test_constraint_pony_pink_for_weight_gt_5_uniq',
|
|
),
|
|
])
|
|
gt_operation = migrations.RemoveConstraint('Pony', 'test_constraint_pony_pink_for_weight_gt_5_uniq')
|
|
self.assertEqual(
|
|
gt_operation.describe(), 'Remove constraint test_constraint_pony_pink_for_weight_gt_5_uniq from model Pony'
|
|
)
|
|
# Test state alteration
|
|
new_state = project_state.clone()
|
|
gt_operation.state_forwards('test_removepartialuniqueconstraint', new_state)
|
|
self.assertEqual(len(new_state.models['test_removepartialuniqueconstraint', 'pony'].options['constraints']), 0)
|
|
Pony = new_state.apps.get_model('test_removepartialuniqueconstraint', 'Pony')
|
|
self.assertEqual(len(Pony._meta.constraints), 0)
|
|
# Test database alteration
|
|
with connection.schema_editor() as editor:
|
|
gt_operation.database_forwards('test_removepartialuniqueconstraint', editor, project_state, new_state)
|
|
# Test constraint doesn't work
|
|
Pony.objects.create(pink=1, weight=4.0)
|
|
Pony.objects.create(pink=1, weight=4.0)
|
|
Pony.objects.create(pink=1, weight=6.0)
|
|
Pony.objects.create(pink=1, weight=7.0).delete()
|
|
# Test reversal
|
|
with connection.schema_editor() as editor:
|
|
gt_operation.database_backwards('test_removepartialuniqueconstraint', editor, new_state, project_state)
|
|
# Test constraint works
|
|
if connection.features.supports_partial_indexes:
|
|
with self.assertRaises(IntegrityError), transaction.atomic():
|
|
Pony.objects.create(pink=1, weight=7.0)
|
|
else:
|
|
Pony.objects.create(pink=1, weight=7.0)
|
|
# Test deconstruction
|
|
definition = gt_operation.deconstruct()
|
|
self.assertEqual(definition[0], 'RemoveConstraint')
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(definition[2], {
|
|
'model_name': 'Pony',
|
|
'name': 'test_constraint_pony_pink_for_weight_gt_5_uniq',
|
|
})
|
|
|
|
def test_alter_model_options(self):
|
|
"""
|
|
Tests the AlterModelOptions operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_almoop")
|
|
# Test the state alteration (no DB alteration to test)
|
|
operation = migrations.AlterModelOptions("Pony", {"permissions": [("can_groom", "Can groom")]})
|
|
self.assertEqual(operation.describe(), "Change Meta options on Pony")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_almoop", new_state)
|
|
self.assertEqual(len(project_state.models["test_almoop", "pony"].options.get("permissions", [])), 0)
|
|
self.assertEqual(len(new_state.models["test_almoop", "pony"].options.get("permissions", [])), 1)
|
|
self.assertEqual(new_state.models["test_almoop", "pony"].options["permissions"][0][0], "can_groom")
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "AlterModelOptions")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(definition[2], {'name': "Pony", 'options': {"permissions": [("can_groom", "Can groom")]}})
|
|
|
|
def test_alter_model_options_emptying(self):
|
|
"""
|
|
The AlterModelOptions operation removes keys from the dict (#23121)
|
|
"""
|
|
project_state = self.set_up_test_model("test_almoop", options=True)
|
|
# Test the state alteration (no DB alteration to test)
|
|
operation = migrations.AlterModelOptions("Pony", {})
|
|
self.assertEqual(operation.describe(), "Change Meta options on Pony")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_almoop", new_state)
|
|
self.assertEqual(len(project_state.models["test_almoop", "pony"].options.get("permissions", [])), 1)
|
|
self.assertEqual(len(new_state.models["test_almoop", "pony"].options.get("permissions", [])), 0)
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "AlterModelOptions")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(definition[2], {'name': "Pony", 'options': {}})
|
|
|
|
def test_alter_order_with_respect_to(self):
|
|
"""
|
|
Tests the AlterOrderWithRespectTo operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_alorwrtto", related_model=True)
|
|
# Test the state alteration
|
|
operation = migrations.AlterOrderWithRespectTo("Rider", "pony")
|
|
self.assertEqual(operation.describe(), "Set order_with_respect_to on Rider to pony")
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_alorwrtto", new_state)
|
|
self.assertIsNone(
|
|
project_state.models["test_alorwrtto", "rider"].options.get("order_with_respect_to", None)
|
|
)
|
|
self.assertEqual(
|
|
new_state.models["test_alorwrtto", "rider"].options.get("order_with_respect_to", None),
|
|
"pony"
|
|
)
|
|
# Make sure there's no matching index
|
|
self.assertColumnNotExists("test_alorwrtto_rider", "_order")
|
|
# Create some rows before alteration
|
|
rendered_state = project_state.apps
|
|
pony = rendered_state.get_model("test_alorwrtto", "Pony").objects.create(weight=50)
|
|
rendered_state.get_model("test_alorwrtto", "Rider").objects.create(pony=pony, friend_id=1)
|
|
rendered_state.get_model("test_alorwrtto", "Rider").objects.create(pony=pony, friend_id=2)
|
|
# Test the database alteration
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_alorwrtto", editor, project_state, new_state)
|
|
self.assertColumnExists("test_alorwrtto_rider", "_order")
|
|
# Check for correct value in rows
|
|
updated_riders = new_state.apps.get_model("test_alorwrtto", "Rider").objects.all()
|
|
self.assertEqual(updated_riders[0]._order, 0)
|
|
self.assertEqual(updated_riders[1]._order, 0)
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_alorwrtto", editor, new_state, project_state)
|
|
self.assertColumnNotExists("test_alorwrtto_rider", "_order")
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "AlterOrderWithRespectTo")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(definition[2], {'name': "Rider", 'order_with_respect_to': "pony"})
|
|
|
|
def test_alter_model_managers(self):
|
|
"""
|
|
The managers on a model are set.
|
|
"""
|
|
project_state = self.set_up_test_model("test_almoma")
|
|
# Test the state alteration
|
|
operation = migrations.AlterModelManagers(
|
|
"Pony",
|
|
managers=[
|
|
("food_qs", FoodQuerySet.as_manager()),
|
|
("food_mgr", FoodManager("a", "b")),
|
|
("food_mgr_kwargs", FoodManager("x", "y", 3, 4)),
|
|
]
|
|
)
|
|
self.assertEqual(operation.describe(), "Change managers on Pony")
|
|
managers = project_state.models["test_almoma", "pony"].managers
|
|
self.assertEqual(managers, [])
|
|
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_almoma", new_state)
|
|
self.assertIn(("test_almoma", "pony"), new_state.models)
|
|
managers = new_state.models["test_almoma", "pony"].managers
|
|
self.assertEqual(managers[0][0], "food_qs")
|
|
self.assertIsInstance(managers[0][1], models.Manager)
|
|
self.assertEqual(managers[1][0], "food_mgr")
|
|
self.assertIsInstance(managers[1][1], FoodManager)
|
|
self.assertEqual(managers[1][1].args, ("a", "b", 1, 2))
|
|
self.assertEqual(managers[2][0], "food_mgr_kwargs")
|
|
self.assertIsInstance(managers[2][1], FoodManager)
|
|
self.assertEqual(managers[2][1].args, ("x", "y", 3, 4))
|
|
rendered_state = new_state.apps
|
|
model = rendered_state.get_model('test_almoma', 'pony')
|
|
self.assertIsInstance(model.food_qs, models.Manager)
|
|
self.assertIsInstance(model.food_mgr, FoodManager)
|
|
self.assertIsInstance(model.food_mgr_kwargs, FoodManager)
|
|
|
|
def test_alter_model_managers_emptying(self):
|
|
"""
|
|
The managers on a model are set.
|
|
"""
|
|
project_state = self.set_up_test_model("test_almomae", manager_model=True)
|
|
# Test the state alteration
|
|
operation = migrations.AlterModelManagers("Food", managers=[])
|
|
self.assertEqual(operation.describe(), "Change managers on Food")
|
|
self.assertIn(("test_almomae", "food"), project_state.models)
|
|
managers = project_state.models["test_almomae", "food"].managers
|
|
self.assertEqual(managers[0][0], "food_qs")
|
|
self.assertIsInstance(managers[0][1], models.Manager)
|
|
self.assertEqual(managers[1][0], "food_mgr")
|
|
self.assertIsInstance(managers[1][1], FoodManager)
|
|
self.assertEqual(managers[1][1].args, ("a", "b", 1, 2))
|
|
self.assertEqual(managers[2][0], "food_mgr_kwargs")
|
|
self.assertIsInstance(managers[2][1], FoodManager)
|
|
self.assertEqual(managers[2][1].args, ("x", "y", 3, 4))
|
|
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_almomae", new_state)
|
|
managers = new_state.models["test_almomae", "food"].managers
|
|
self.assertEqual(managers, [])
|
|
|
|
def test_alter_fk(self):
|
|
"""
|
|
Creating and then altering an FK works correctly
|
|
and deals with the pending SQL (#23091)
|
|
"""
|
|
project_state = self.set_up_test_model("test_alfk")
|
|
# Test adding and then altering the FK in one go
|
|
create_operation = migrations.CreateModel(
|
|
name="Rider",
|
|
fields=[
|
|
("id", models.AutoField(primary_key=True)),
|
|
("pony", models.ForeignKey("Pony", models.CASCADE)),
|
|
],
|
|
)
|
|
create_state = project_state.clone()
|
|
create_operation.state_forwards("test_alfk", create_state)
|
|
alter_operation = migrations.AlterField(
|
|
model_name='Rider',
|
|
name='pony',
|
|
field=models.ForeignKey("Pony", models.CASCADE, editable=False),
|
|
)
|
|
alter_state = create_state.clone()
|
|
alter_operation.state_forwards("test_alfk", alter_state)
|
|
with connection.schema_editor() as editor:
|
|
create_operation.database_forwards("test_alfk", editor, project_state, create_state)
|
|
alter_operation.database_forwards("test_alfk", editor, create_state, alter_state)
|
|
|
|
def test_alter_fk_non_fk(self):
|
|
"""
|
|
Altering an FK to a non-FK works (#23244)
|
|
"""
|
|
# Test the state alteration
|
|
operation = migrations.AlterField(
|
|
model_name="Rider",
|
|
name="pony",
|
|
field=models.FloatField(),
|
|
)
|
|
project_state, new_state = self.make_test_state("test_afknfk", operation, related_model=True)
|
|
# Test the database alteration
|
|
self.assertColumnExists("test_afknfk_rider", "pony_id")
|
|
self.assertColumnNotExists("test_afknfk_rider", "pony")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_afknfk", editor, project_state, new_state)
|
|
self.assertColumnExists("test_afknfk_rider", "pony")
|
|
self.assertColumnNotExists("test_afknfk_rider", "pony_id")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_afknfk", editor, new_state, project_state)
|
|
self.assertColumnExists("test_afknfk_rider", "pony_id")
|
|
self.assertColumnNotExists("test_afknfk_rider", "pony")
|
|
|
|
def test_run_sql(self):
|
|
"""
|
|
Tests the RunSQL operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_runsql")
|
|
# Create the operation
|
|
operation = migrations.RunSQL(
|
|
# Use a multi-line string with a comment to test splitting on SQLite and MySQL respectively
|
|
"CREATE TABLE i_love_ponies (id int, special_thing varchar(15));\n"
|
|
"INSERT INTO i_love_ponies (id, special_thing) VALUES (1, 'i love ponies'); -- this is magic!\n"
|
|
"INSERT INTO i_love_ponies (id, special_thing) VALUES (2, 'i love django');\n"
|
|
"UPDATE i_love_ponies SET special_thing = 'Ponies' WHERE special_thing LIKE '%%ponies';"
|
|
"UPDATE i_love_ponies SET special_thing = 'Django' WHERE special_thing LIKE '%django';",
|
|
|
|
# Run delete queries to test for parameter substitution failure
|
|
# reported in #23426
|
|
"DELETE FROM i_love_ponies WHERE special_thing LIKE '%Django%';"
|
|
"DELETE FROM i_love_ponies WHERE special_thing LIKE '%%Ponies%%';"
|
|
"DROP TABLE i_love_ponies",
|
|
|
|
state_operations=[migrations.CreateModel("SomethingElse", [("id", models.AutoField(primary_key=True))])],
|
|
)
|
|
self.assertEqual(operation.describe(), "Raw SQL operation")
|
|
# Test the state alteration
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_runsql", new_state)
|
|
self.assertEqual(len(new_state.models["test_runsql", "somethingelse"].fields), 1)
|
|
# Make sure there's no table
|
|
self.assertTableNotExists("i_love_ponies")
|
|
# Test SQL collection
|
|
with connection.schema_editor(collect_sql=True) as editor:
|
|
operation.database_forwards("test_runsql", editor, project_state, new_state)
|
|
self.assertIn("LIKE '%%ponies';", "\n".join(editor.collected_sql))
|
|
operation.database_backwards("test_runsql", editor, project_state, new_state)
|
|
self.assertIn("LIKE '%%Ponies%%';", "\n".join(editor.collected_sql))
|
|
# Test the database alteration
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_runsql", editor, project_state, new_state)
|
|
self.assertTableExists("i_love_ponies")
|
|
# Make sure all the SQL was processed
|
|
with connection.cursor() as cursor:
|
|
cursor.execute("SELECT COUNT(*) FROM i_love_ponies")
|
|
self.assertEqual(cursor.fetchall()[0][0], 2)
|
|
cursor.execute("SELECT COUNT(*) FROM i_love_ponies WHERE special_thing = 'Django'")
|
|
self.assertEqual(cursor.fetchall()[0][0], 1)
|
|
cursor.execute("SELECT COUNT(*) FROM i_love_ponies WHERE special_thing = 'Ponies'")
|
|
self.assertEqual(cursor.fetchall()[0][0], 1)
|
|
# And test reversal
|
|
self.assertTrue(operation.reversible)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_runsql", editor, new_state, project_state)
|
|
self.assertTableNotExists("i_love_ponies")
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "RunSQL")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(sorted(definition[2]), ["reverse_sql", "sql", "state_operations"])
|
|
# And elidable reduction
|
|
self.assertIs(False, operation.reduce(operation, []))
|
|
elidable_operation = migrations.RunSQL('SELECT 1 FROM void;', elidable=True)
|
|
self.assertEqual(elidable_operation.reduce(operation, []), [operation])
|
|
|
|
def test_run_sql_params(self):
|
|
"""
|
|
#23426 - RunSQL should accept parameters.
|
|
"""
|
|
project_state = self.set_up_test_model("test_runsql")
|
|
# Create the operation
|
|
operation = migrations.RunSQL(
|
|
["CREATE TABLE i_love_ponies (id int, special_thing varchar(15));"],
|
|
["DROP TABLE i_love_ponies"],
|
|
)
|
|
param_operation = migrations.RunSQL(
|
|
# forwards
|
|
(
|
|
"INSERT INTO i_love_ponies (id, special_thing) VALUES (1, 'Django');",
|
|
["INSERT INTO i_love_ponies (id, special_thing) VALUES (2, %s);", ['Ponies']],
|
|
("INSERT INTO i_love_ponies (id, special_thing) VALUES (%s, %s);", (3, 'Python',)),
|
|
),
|
|
# backwards
|
|
[
|
|
"DELETE FROM i_love_ponies WHERE special_thing = 'Django';",
|
|
["DELETE FROM i_love_ponies WHERE special_thing = 'Ponies';", None],
|
|
("DELETE FROM i_love_ponies WHERE id = %s OR special_thing = %s;", [3, 'Python']),
|
|
]
|
|
)
|
|
|
|
# Make sure there's no table
|
|
self.assertTableNotExists("i_love_ponies")
|
|
new_state = project_state.clone()
|
|
# Test the database alteration
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_runsql", editor, project_state, new_state)
|
|
|
|
# Test parameter passing
|
|
with connection.schema_editor() as editor:
|
|
param_operation.database_forwards("test_runsql", editor, project_state, new_state)
|
|
# Make sure all the SQL was processed
|
|
with connection.cursor() as cursor:
|
|
cursor.execute("SELECT COUNT(*) FROM i_love_ponies")
|
|
self.assertEqual(cursor.fetchall()[0][0], 3)
|
|
|
|
with connection.schema_editor() as editor:
|
|
param_operation.database_backwards("test_runsql", editor, new_state, project_state)
|
|
with connection.cursor() as cursor:
|
|
cursor.execute("SELECT COUNT(*) FROM i_love_ponies")
|
|
self.assertEqual(cursor.fetchall()[0][0], 0)
|
|
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_runsql", editor, new_state, project_state)
|
|
self.assertTableNotExists("i_love_ponies")
|
|
|
|
def test_run_sql_params_invalid(self):
|
|
"""
|
|
#23426 - RunSQL should fail when a list of statements with an incorrect
|
|
number of tuples is given.
|
|
"""
|
|
project_state = self.set_up_test_model("test_runsql")
|
|
new_state = project_state.clone()
|
|
operation = migrations.RunSQL(
|
|
# forwards
|
|
[
|
|
["INSERT INTO foo (bar) VALUES ('buz');"]
|
|
],
|
|
# backwards
|
|
(
|
|
("DELETE FROM foo WHERE bar = 'buz';", 'invalid', 'parameter count'),
|
|
),
|
|
)
|
|
|
|
with connection.schema_editor() as editor:
|
|
with self.assertRaisesMessage(ValueError, "Expected a 2-tuple but got 1"):
|
|
operation.database_forwards("test_runsql", editor, project_state, new_state)
|
|
|
|
with connection.schema_editor() as editor:
|
|
with self.assertRaisesMessage(ValueError, "Expected a 2-tuple but got 3"):
|
|
operation.database_backwards("test_runsql", editor, new_state, project_state)
|
|
|
|
def test_run_sql_noop(self):
|
|
"""
|
|
#24098 - Tests no-op RunSQL operations.
|
|
"""
|
|
operation = migrations.RunSQL(migrations.RunSQL.noop, migrations.RunSQL.noop)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_runsql", editor, None, None)
|
|
operation.database_backwards("test_runsql", editor, None, None)
|
|
|
|
def test_run_python(self):
|
|
"""
|
|
Tests the RunPython operation
|
|
"""
|
|
|
|
project_state = self.set_up_test_model("test_runpython", mti_model=True)
|
|
|
|
# Create the operation
|
|
def inner_method(models, schema_editor):
|
|
Pony = models.get_model("test_runpython", "Pony")
|
|
Pony.objects.create(pink=1, weight=3.55)
|
|
Pony.objects.create(weight=5)
|
|
|
|
def inner_method_reverse(models, schema_editor):
|
|
Pony = models.get_model("test_runpython", "Pony")
|
|
Pony.objects.filter(pink=1, weight=3.55).delete()
|
|
Pony.objects.filter(weight=5).delete()
|
|
operation = migrations.RunPython(inner_method, reverse_code=inner_method_reverse)
|
|
self.assertEqual(operation.describe(), "Raw Python operation")
|
|
# Test the state alteration does nothing
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_runpython", new_state)
|
|
self.assertEqual(new_state, project_state)
|
|
# Test the database alteration
|
|
self.assertEqual(project_state.apps.get_model("test_runpython", "Pony").objects.count(), 0)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_runpython", editor, project_state, new_state)
|
|
self.assertEqual(project_state.apps.get_model("test_runpython", "Pony").objects.count(), 2)
|
|
# Now test reversal
|
|
self.assertTrue(operation.reversible)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_runpython", editor, project_state, new_state)
|
|
self.assertEqual(project_state.apps.get_model("test_runpython", "Pony").objects.count(), 0)
|
|
# Now test we can't use a string
|
|
with self.assertRaisesMessage(ValueError, 'RunPython must be supplied with a callable'):
|
|
migrations.RunPython("print 'ahahaha'")
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "RunPython")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(sorted(definition[2]), ["code", "reverse_code"])
|
|
|
|
# Also test reversal fails, with an operation identical to above but without reverse_code set
|
|
no_reverse_operation = migrations.RunPython(inner_method)
|
|
self.assertFalse(no_reverse_operation.reversible)
|
|
with connection.schema_editor() as editor:
|
|
no_reverse_operation.database_forwards("test_runpython", editor, project_state, new_state)
|
|
with self.assertRaises(NotImplementedError):
|
|
no_reverse_operation.database_backwards("test_runpython", editor, new_state, project_state)
|
|
self.assertEqual(project_state.apps.get_model("test_runpython", "Pony").objects.count(), 2)
|
|
|
|
def create_ponies(models, schema_editor):
|
|
Pony = models.get_model("test_runpython", "Pony")
|
|
pony1 = Pony.objects.create(pink=1, weight=3.55)
|
|
self.assertIsNot(pony1.pk, None)
|
|
pony2 = Pony.objects.create(weight=5)
|
|
self.assertIsNot(pony2.pk, None)
|
|
self.assertNotEqual(pony1.pk, pony2.pk)
|
|
|
|
operation = migrations.RunPython(create_ponies)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_runpython", editor, project_state, new_state)
|
|
self.assertEqual(project_state.apps.get_model("test_runpython", "Pony").objects.count(), 4)
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "RunPython")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(sorted(definition[2]), ["code"])
|
|
|
|
def create_shetlandponies(models, schema_editor):
|
|
ShetlandPony = models.get_model("test_runpython", "ShetlandPony")
|
|
pony1 = ShetlandPony.objects.create(weight=4.0)
|
|
self.assertIsNot(pony1.pk, None)
|
|
pony2 = ShetlandPony.objects.create(weight=5.0)
|
|
self.assertIsNot(pony2.pk, None)
|
|
self.assertNotEqual(pony1.pk, pony2.pk)
|
|
|
|
operation = migrations.RunPython(create_shetlandponies)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_runpython", editor, project_state, new_state)
|
|
self.assertEqual(project_state.apps.get_model("test_runpython", "Pony").objects.count(), 6)
|
|
self.assertEqual(project_state.apps.get_model("test_runpython", "ShetlandPony").objects.count(), 2)
|
|
# And elidable reduction
|
|
self.assertIs(False, operation.reduce(operation, []))
|
|
elidable_operation = migrations.RunPython(inner_method, elidable=True)
|
|
self.assertEqual(elidable_operation.reduce(operation, []), [operation])
|
|
|
|
def test_run_python_atomic(self):
|
|
"""
|
|
Tests the RunPython operation correctly handles the "atomic" keyword
|
|
"""
|
|
project_state = self.set_up_test_model("test_runpythonatomic", mti_model=True)
|
|
|
|
def inner_method(models, schema_editor):
|
|
Pony = models.get_model("test_runpythonatomic", "Pony")
|
|
Pony.objects.create(pink=1, weight=3.55)
|
|
raise ValueError("Adrian hates ponies.")
|
|
|
|
# Verify atomicity when applying.
|
|
atomic_migration = Migration("test", "test_runpythonatomic")
|
|
atomic_migration.operations = [migrations.RunPython(inner_method, reverse_code=inner_method)]
|
|
non_atomic_migration = Migration("test", "test_runpythonatomic")
|
|
non_atomic_migration.operations = [migrations.RunPython(inner_method, reverse_code=inner_method, atomic=False)]
|
|
# If we're a fully-transactional database, both versions should rollback
|
|
if connection.features.can_rollback_ddl:
|
|
self.assertEqual(project_state.apps.get_model("test_runpythonatomic", "Pony").objects.count(), 0)
|
|
with self.assertRaises(ValueError):
|
|
with connection.schema_editor() as editor:
|
|
atomic_migration.apply(project_state, editor)
|
|
self.assertEqual(project_state.apps.get_model("test_runpythonatomic", "Pony").objects.count(), 0)
|
|
with self.assertRaises(ValueError):
|
|
with connection.schema_editor() as editor:
|
|
non_atomic_migration.apply(project_state, editor)
|
|
self.assertEqual(project_state.apps.get_model("test_runpythonatomic", "Pony").objects.count(), 0)
|
|
# Otherwise, the non-atomic operation should leave a row there
|
|
else:
|
|
self.assertEqual(project_state.apps.get_model("test_runpythonatomic", "Pony").objects.count(), 0)
|
|
with self.assertRaises(ValueError):
|
|
with connection.schema_editor() as editor:
|
|
atomic_migration.apply(project_state, editor)
|
|
self.assertEqual(project_state.apps.get_model("test_runpythonatomic", "Pony").objects.count(), 0)
|
|
with self.assertRaises(ValueError):
|
|
with connection.schema_editor() as editor:
|
|
non_atomic_migration.apply(project_state, editor)
|
|
self.assertEqual(project_state.apps.get_model("test_runpythonatomic", "Pony").objects.count(), 1)
|
|
# Reset object count to zero and verify atomicity when unapplying.
|
|
project_state.apps.get_model("test_runpythonatomic", "Pony").objects.all().delete()
|
|
# On a fully-transactional database, both versions rollback.
|
|
if connection.features.can_rollback_ddl:
|
|
self.assertEqual(project_state.apps.get_model("test_runpythonatomic", "Pony").objects.count(), 0)
|
|
with self.assertRaises(ValueError):
|
|
with connection.schema_editor() as editor:
|
|
atomic_migration.unapply(project_state, editor)
|
|
self.assertEqual(project_state.apps.get_model("test_runpythonatomic", "Pony").objects.count(), 0)
|
|
with self.assertRaises(ValueError):
|
|
with connection.schema_editor() as editor:
|
|
non_atomic_migration.unapply(project_state, editor)
|
|
self.assertEqual(project_state.apps.get_model("test_runpythonatomic", "Pony").objects.count(), 0)
|
|
# Otherwise, the non-atomic operation leaves a row there.
|
|
else:
|
|
self.assertEqual(project_state.apps.get_model("test_runpythonatomic", "Pony").objects.count(), 0)
|
|
with self.assertRaises(ValueError):
|
|
with connection.schema_editor() as editor:
|
|
atomic_migration.unapply(project_state, editor)
|
|
self.assertEqual(project_state.apps.get_model("test_runpythonatomic", "Pony").objects.count(), 0)
|
|
with self.assertRaises(ValueError):
|
|
with connection.schema_editor() as editor:
|
|
non_atomic_migration.unapply(project_state, editor)
|
|
self.assertEqual(project_state.apps.get_model("test_runpythonatomic", "Pony").objects.count(), 1)
|
|
# Verify deconstruction.
|
|
definition = non_atomic_migration.operations[0].deconstruct()
|
|
self.assertEqual(definition[0], "RunPython")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(sorted(definition[2]), ["atomic", "code", "reverse_code"])
|
|
|
|
def test_run_python_related_assignment(self):
|
|
"""
|
|
#24282 - Model changes to a FK reverse side update the model
|
|
on the FK side as well.
|
|
"""
|
|
|
|
def inner_method(models, schema_editor):
|
|
Author = models.get_model("test_authors", "Author")
|
|
Book = models.get_model("test_books", "Book")
|
|
author = Author.objects.create(name="Hemingway")
|
|
Book.objects.create(title="Old Man and The Sea", author=author)
|
|
|
|
create_author = migrations.CreateModel(
|
|
"Author",
|
|
[
|
|
("id", models.AutoField(primary_key=True)),
|
|
("name", models.CharField(max_length=100)),
|
|
],
|
|
options={},
|
|
)
|
|
create_book = migrations.CreateModel(
|
|
"Book",
|
|
[
|
|
("id", models.AutoField(primary_key=True)),
|
|
("title", models.CharField(max_length=100)),
|
|
("author", models.ForeignKey("test_authors.Author", models.CASCADE))
|
|
],
|
|
options={},
|
|
)
|
|
add_hometown = migrations.AddField(
|
|
"Author",
|
|
"hometown",
|
|
models.CharField(max_length=100),
|
|
)
|
|
create_old_man = migrations.RunPython(inner_method, inner_method)
|
|
|
|
project_state = ProjectState()
|
|
new_state = project_state.clone()
|
|
with connection.schema_editor() as editor:
|
|
create_author.state_forwards("test_authors", new_state)
|
|
create_author.database_forwards("test_authors", editor, project_state, new_state)
|
|
project_state = new_state
|
|
new_state = new_state.clone()
|
|
with connection.schema_editor() as editor:
|
|
create_book.state_forwards("test_books", new_state)
|
|
create_book.database_forwards("test_books", editor, project_state, new_state)
|
|
project_state = new_state
|
|
new_state = new_state.clone()
|
|
with connection.schema_editor() as editor:
|
|
add_hometown.state_forwards("test_authors", new_state)
|
|
add_hometown.database_forwards("test_authors", editor, project_state, new_state)
|
|
project_state = new_state
|
|
new_state = new_state.clone()
|
|
with connection.schema_editor() as editor:
|
|
create_old_man.state_forwards("test_books", new_state)
|
|
create_old_man.database_forwards("test_books", editor, project_state, new_state)
|
|
|
|
def test_model_with_bigautofield(self):
|
|
"""
|
|
A model with BigAutoField can be created.
|
|
"""
|
|
def create_data(models, schema_editor):
|
|
Author = models.get_model("test_author", "Author")
|
|
Book = models.get_model("test_book", "Book")
|
|
author1 = Author.objects.create(name="Hemingway")
|
|
Book.objects.create(title="Old Man and The Sea", author=author1)
|
|
Book.objects.create(id=2 ** 33, title="A farewell to arms", author=author1)
|
|
|
|
author2 = Author.objects.create(id=2 ** 33, name="Remarque")
|
|
Book.objects.create(title="All quiet on the western front", author=author2)
|
|
Book.objects.create(title="Arc de Triomphe", author=author2)
|
|
|
|
create_author = migrations.CreateModel(
|
|
"Author",
|
|
[
|
|
("id", models.BigAutoField(primary_key=True)),
|
|
("name", models.CharField(max_length=100)),
|
|
],
|
|
options={},
|
|
)
|
|
create_book = migrations.CreateModel(
|
|
"Book",
|
|
[
|
|
("id", models.BigAutoField(primary_key=True)),
|
|
("title", models.CharField(max_length=100)),
|
|
("author", models.ForeignKey(to="test_author.Author", on_delete=models.CASCADE))
|
|
],
|
|
options={},
|
|
)
|
|
fill_data = migrations.RunPython(create_data)
|
|
|
|
project_state = ProjectState()
|
|
new_state = project_state.clone()
|
|
with connection.schema_editor() as editor:
|
|
create_author.state_forwards("test_author", new_state)
|
|
create_author.database_forwards("test_author", editor, project_state, new_state)
|
|
|
|
project_state = new_state
|
|
new_state = new_state.clone()
|
|
with connection.schema_editor() as editor:
|
|
create_book.state_forwards("test_book", new_state)
|
|
create_book.database_forwards("test_book", editor, project_state, new_state)
|
|
|
|
project_state = new_state
|
|
new_state = new_state.clone()
|
|
with connection.schema_editor() as editor:
|
|
fill_data.state_forwards("fill_data", new_state)
|
|
fill_data.database_forwards("fill_data", editor, project_state, new_state)
|
|
|
|
def test_autofield_foreignfield_growth(self):
|
|
"""
|
|
A field may be migrated from AutoField to BigAutoField.
|
|
"""
|
|
def create_initial_data(models, schema_editor):
|
|
Article = models.get_model("test_article", "Article")
|
|
Blog = models.get_model("test_blog", "Blog")
|
|
blog = Blog.objects.create(name="web development done right")
|
|
Article.objects.create(name="Frameworks", blog=blog)
|
|
Article.objects.create(name="Programming Languages", blog=blog)
|
|
|
|
def create_big_data(models, schema_editor):
|
|
Article = models.get_model("test_article", "Article")
|
|
Blog = models.get_model("test_blog", "Blog")
|
|
blog2 = Blog.objects.create(name="Frameworks", id=2 ** 33)
|
|
Article.objects.create(name="Django", blog=blog2)
|
|
Article.objects.create(id=2 ** 33, name="Django2", blog=blog2)
|
|
|
|
create_blog = migrations.CreateModel(
|
|
"Blog",
|
|
[
|
|
("id", models.AutoField(primary_key=True)),
|
|
("name", models.CharField(max_length=100)),
|
|
],
|
|
options={},
|
|
)
|
|
create_article = migrations.CreateModel(
|
|
"Article",
|
|
[
|
|
("id", models.AutoField(primary_key=True)),
|
|
("blog", models.ForeignKey(to="test_blog.Blog", on_delete=models.CASCADE)),
|
|
("name", models.CharField(max_length=100)),
|
|
("data", models.TextField(default="")),
|
|
],
|
|
options={},
|
|
)
|
|
fill_initial_data = migrations.RunPython(create_initial_data, create_initial_data)
|
|
fill_big_data = migrations.RunPython(create_big_data, create_big_data)
|
|
|
|
grow_article_id = migrations.AlterField("Article", "id", models.BigAutoField(primary_key=True))
|
|
grow_blog_id = migrations.AlterField("Blog", "id", models.BigAutoField(primary_key=True))
|
|
|
|
project_state = ProjectState()
|
|
new_state = project_state.clone()
|
|
with connection.schema_editor() as editor:
|
|
create_blog.state_forwards("test_blog", new_state)
|
|
create_blog.database_forwards("test_blog", editor, project_state, new_state)
|
|
|
|
project_state = new_state
|
|
new_state = new_state.clone()
|
|
with connection.schema_editor() as editor:
|
|
create_article.state_forwards("test_article", new_state)
|
|
create_article.database_forwards("test_article", editor, project_state, new_state)
|
|
|
|
project_state = new_state
|
|
new_state = new_state.clone()
|
|
with connection.schema_editor() as editor:
|
|
fill_initial_data.state_forwards("fill_initial_data", new_state)
|
|
fill_initial_data.database_forwards("fill_initial_data", editor, project_state, new_state)
|
|
|
|
project_state = new_state
|
|
new_state = new_state.clone()
|
|
with connection.schema_editor() as editor:
|
|
grow_article_id.state_forwards("test_article", new_state)
|
|
grow_article_id.database_forwards("test_article", editor, project_state, new_state)
|
|
|
|
state = new_state.clone()
|
|
article = state.apps.get_model("test_article.Article")
|
|
self.assertIsInstance(article._meta.pk, models.BigAutoField)
|
|
|
|
project_state = new_state
|
|
new_state = new_state.clone()
|
|
with connection.schema_editor() as editor:
|
|
grow_blog_id.state_forwards("test_blog", new_state)
|
|
grow_blog_id.database_forwards("test_blog", editor, project_state, new_state)
|
|
|
|
state = new_state.clone()
|
|
blog = state.apps.get_model("test_blog.Blog")
|
|
self.assertIsInstance(blog._meta.pk, models.BigAutoField)
|
|
|
|
project_state = new_state
|
|
new_state = new_state.clone()
|
|
with connection.schema_editor() as editor:
|
|
fill_big_data.state_forwards("fill_big_data", new_state)
|
|
fill_big_data.database_forwards("fill_big_data", editor, project_state, new_state)
|
|
|
|
def test_run_python_noop(self):
|
|
"""
|
|
#24098 - Tests no-op RunPython operations.
|
|
"""
|
|
project_state = ProjectState()
|
|
new_state = project_state.clone()
|
|
operation = migrations.RunPython(migrations.RunPython.noop, migrations.RunPython.noop)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_runpython", editor, project_state, new_state)
|
|
operation.database_backwards("test_runpython", editor, new_state, project_state)
|
|
|
|
def test_separate_database_and_state(self):
|
|
"""
|
|
Tests the SeparateDatabaseAndState operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_separatedatabaseandstate")
|
|
# Create the operation
|
|
database_operation = migrations.RunSQL(
|
|
"CREATE TABLE i_love_ponies (id int, special_thing int);",
|
|
"DROP TABLE i_love_ponies;"
|
|
)
|
|
state_operation = migrations.CreateModel("SomethingElse", [("id", models.AutoField(primary_key=True))])
|
|
operation = migrations.SeparateDatabaseAndState(
|
|
state_operations=[state_operation],
|
|
database_operations=[database_operation]
|
|
)
|
|
self.assertEqual(operation.describe(), "Custom state/database change combination")
|
|
# Test the state alteration
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_separatedatabaseandstate", new_state)
|
|
self.assertEqual(len(new_state.models["test_separatedatabaseandstate", "somethingelse"].fields), 1)
|
|
# Make sure there's no table
|
|
self.assertTableNotExists("i_love_ponies")
|
|
# Test the database alteration
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_separatedatabaseandstate", editor, project_state, new_state)
|
|
self.assertTableExists("i_love_ponies")
|
|
# And test reversal
|
|
self.assertTrue(operation.reversible)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_separatedatabaseandstate", editor, new_state, project_state)
|
|
self.assertTableNotExists("i_love_ponies")
|
|
# And deconstruction
|
|
definition = operation.deconstruct()
|
|
self.assertEqual(definition[0], "SeparateDatabaseAndState")
|
|
self.assertEqual(definition[1], [])
|
|
self.assertEqual(sorted(definition[2]), ["database_operations", "state_operations"])
|
|
|
|
def test_separate_database_and_state2(self):
|
|
"""
|
|
A complex SeparateDatabaseAndState operation: Multiple operations both
|
|
for state and database. Verify the state dependencies within each list
|
|
and that state ops don't affect the database.
|
|
"""
|
|
app_label = "test_separatedatabaseandstate2"
|
|
project_state = self.set_up_test_model(app_label)
|
|
# Create the operation
|
|
database_operations = [
|
|
migrations.CreateModel(
|
|
"ILovePonies",
|
|
[("id", models.AutoField(primary_key=True))],
|
|
options={"db_table": "iloveponies"},
|
|
),
|
|
migrations.CreateModel(
|
|
"ILoveMorePonies",
|
|
# We use IntegerField and not AutoField because
|
|
# the model is going to be deleted immediately
|
|
# and with an AutoField this fails on Oracle
|
|
[("id", models.IntegerField(primary_key=True))],
|
|
options={"db_table": "ilovemoreponies"},
|
|
),
|
|
migrations.DeleteModel("ILoveMorePonies"),
|
|
migrations.CreateModel(
|
|
"ILoveEvenMorePonies",
|
|
[("id", models.AutoField(primary_key=True))],
|
|
options={"db_table": "iloveevenmoreponies"},
|
|
),
|
|
]
|
|
state_operations = [
|
|
migrations.CreateModel(
|
|
"SomethingElse",
|
|
[("id", models.AutoField(primary_key=True))],
|
|
options={"db_table": "somethingelse"},
|
|
),
|
|
migrations.DeleteModel("SomethingElse"),
|
|
migrations.CreateModel(
|
|
"SomethingCompletelyDifferent",
|
|
[("id", models.AutoField(primary_key=True))],
|
|
options={"db_table": "somethingcompletelydifferent"},
|
|
),
|
|
]
|
|
operation = migrations.SeparateDatabaseAndState(
|
|
state_operations=state_operations,
|
|
database_operations=database_operations,
|
|
)
|
|
# Test the state alteration
|
|
new_state = project_state.clone()
|
|
operation.state_forwards(app_label, new_state)
|
|
|
|
def assertModelsAndTables(after_db):
|
|
# Tables and models exist, or don't, as they should:
|
|
self.assertNotIn((app_label, "somethingelse"), new_state.models)
|
|
self.assertEqual(len(new_state.models[app_label, "somethingcompletelydifferent"].fields), 1)
|
|
self.assertNotIn((app_label, "iloveponiesonies"), new_state.models)
|
|
self.assertNotIn((app_label, "ilovemoreponies"), new_state.models)
|
|
self.assertNotIn((app_label, "iloveevenmoreponies"), new_state.models)
|
|
self.assertTableNotExists("somethingelse")
|
|
self.assertTableNotExists("somethingcompletelydifferent")
|
|
self.assertTableNotExists("ilovemoreponies")
|
|
if after_db:
|
|
self.assertTableExists("iloveponies")
|
|
self.assertTableExists("iloveevenmoreponies")
|
|
else:
|
|
self.assertTableNotExists("iloveponies")
|
|
self.assertTableNotExists("iloveevenmoreponies")
|
|
|
|
assertModelsAndTables(after_db=False)
|
|
# Test the database alteration
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards(app_label, editor, project_state, new_state)
|
|
assertModelsAndTables(after_db=True)
|
|
# And test reversal
|
|
self.assertTrue(operation.reversible)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards(app_label, editor, new_state, project_state)
|
|
assertModelsAndTables(after_db=False)
|
|
|
|
|
|
class SwappableOperationTests(OperationTestBase):
|
|
"""
|
|
Key operations ignore swappable models
|
|
(we don't want to replicate all of them here, as the functionality
|
|
is in a common base class anyway)
|
|
"""
|
|
|
|
available_apps = ['migrations']
|
|
|
|
@override_settings(TEST_SWAP_MODEL="migrations.SomeFakeModel")
|
|
def test_create_ignore_swapped(self):
|
|
"""
|
|
The CreateTable operation ignores swapped models.
|
|
"""
|
|
operation = migrations.CreateModel(
|
|
"Pony",
|
|
[
|
|
("id", models.AutoField(primary_key=True)),
|
|
("pink", models.IntegerField(default=1)),
|
|
],
|
|
options={
|
|
"swappable": "TEST_SWAP_MODEL",
|
|
},
|
|
)
|
|
# Test the state alteration (it should still be there!)
|
|
project_state = ProjectState()
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_crigsw", new_state)
|
|
self.assertEqual(new_state.models["test_crigsw", "pony"].name, "Pony")
|
|
self.assertEqual(len(new_state.models["test_crigsw", "pony"].fields), 2)
|
|
# Test the database alteration
|
|
self.assertTableNotExists("test_crigsw_pony")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_crigsw", editor, project_state, new_state)
|
|
self.assertTableNotExists("test_crigsw_pony")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_crigsw", editor, new_state, project_state)
|
|
self.assertTableNotExists("test_crigsw_pony")
|
|
|
|
@override_settings(TEST_SWAP_MODEL="migrations.SomeFakeModel")
|
|
def test_delete_ignore_swapped(self):
|
|
"""
|
|
Tests the DeleteModel operation ignores swapped models.
|
|
"""
|
|
operation = migrations.DeleteModel("Pony")
|
|
project_state, new_state = self.make_test_state("test_dligsw", operation)
|
|
# Test the database alteration
|
|
self.assertTableNotExists("test_dligsw_pony")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_dligsw", editor, project_state, new_state)
|
|
self.assertTableNotExists("test_dligsw_pony")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_dligsw", editor, new_state, project_state)
|
|
self.assertTableNotExists("test_dligsw_pony")
|
|
|
|
@override_settings(TEST_SWAP_MODEL="migrations.SomeFakeModel")
|
|
def test_add_field_ignore_swapped(self):
|
|
"""
|
|
Tests the AddField operation.
|
|
"""
|
|
# Test the state alteration
|
|
operation = migrations.AddField(
|
|
"Pony",
|
|
"height",
|
|
models.FloatField(null=True, default=5),
|
|
)
|
|
project_state, new_state = self.make_test_state("test_adfligsw", operation)
|
|
# Test the database alteration
|
|
self.assertTableNotExists("test_adfligsw_pony")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_adfligsw", editor, project_state, new_state)
|
|
self.assertTableNotExists("test_adfligsw_pony")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_adfligsw", editor, new_state, project_state)
|
|
self.assertTableNotExists("test_adfligsw_pony")
|
|
|
|
@override_settings(TEST_SWAP_MODEL='migrations.SomeFakeModel')
|
|
def test_indexes_ignore_swapped(self):
|
|
"""
|
|
Add/RemoveIndex operations ignore swapped models.
|
|
"""
|
|
operation = migrations.AddIndex('Pony', models.Index(fields=['pink'], name='my_name_idx'))
|
|
project_state, new_state = self.make_test_state('test_adinigsw', operation)
|
|
with connection.schema_editor() as editor:
|
|
# No database queries should be run for swapped models
|
|
operation.database_forwards('test_adinigsw', editor, project_state, new_state)
|
|
operation.database_backwards('test_adinigsw', editor, new_state, project_state)
|
|
|
|
operation = migrations.RemoveIndex('Pony', models.Index(fields=['pink'], name='my_name_idx'))
|
|
project_state, new_state = self.make_test_state("test_rminigsw", operation)
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards('test_rminigsw', editor, project_state, new_state)
|
|
operation.database_backwards('test_rminigsw', editor, new_state, project_state)
|
|
|
|
|
|
class TestCreateModel(SimpleTestCase):
|
|
|
|
def test_references_model_mixin(self):
|
|
CreateModel('name', [], bases=(Mixin, models.Model)).references_model('other_model')
|
|
|
|
|
|
class FieldOperationTests(SimpleTestCase):
|
|
def test_references_model(self):
|
|
operation = FieldOperation('MoDel', 'field', models.ForeignKey('Other', models.CASCADE))
|
|
# Model name match.
|
|
self.assertIs(operation.references_model('mOdEl'), True)
|
|
# Referenced field.
|
|
self.assertIs(operation.references_model('oTher'), True)
|
|
# Doesn't reference.
|
|
self.assertIs(operation.references_model('Whatever'), False)
|
|
|
|
def test_references_field_by_name(self):
|
|
operation = FieldOperation('MoDel', 'field', models.BooleanField(default=False))
|
|
self.assertIs(operation.references_field('model', 'field'), True)
|
|
|
|
def test_references_field_by_remote_field_model(self):
|
|
operation = FieldOperation('Model', 'field', models.ForeignKey('Other', models.CASCADE))
|
|
self.assertIs(operation.references_field('Other', 'whatever'), True)
|
|
self.assertIs(operation.references_field('Missing', 'whatever'), False)
|
|
|
|
def test_references_field_by_from_fields(self):
|
|
operation = FieldOperation(
|
|
'Model', 'field', models.fields.related.ForeignObject('Other', models.CASCADE, ['from'], ['to'])
|
|
)
|
|
self.assertIs(operation.references_field('Model', 'from'), True)
|
|
self.assertIs(operation.references_field('Model', 'to'), False)
|
|
self.assertIs(operation.references_field('Other', 'from'), False)
|
|
self.assertIs(operation.references_field('Model', 'to'), False)
|
|
|
|
def test_references_field_by_to_fields(self):
|
|
operation = FieldOperation('Model', 'field', models.ForeignKey('Other', models.CASCADE, to_field='field'))
|
|
self.assertIs(operation.references_field('Other', 'field'), True)
|
|
self.assertIs(operation.references_field('Other', 'whatever'), False)
|
|
self.assertIs(operation.references_field('Missing', 'whatever'), False)
|
|
|
|
def test_references_field_by_through(self):
|
|
operation = FieldOperation('Model', 'field', models.ManyToManyField('Other', through='Through'))
|
|
self.assertIs(operation.references_field('Other', 'whatever'), True)
|
|
self.assertIs(operation.references_field('Through', 'whatever'), True)
|
|
self.assertIs(operation.references_field('Missing', 'whatever'), False)
|
|
|
|
def test_reference_field_by_through_fields(self):
|
|
operation = FieldOperation(
|
|
'Model', 'field', models.ManyToManyField('Other', through='Through', through_fields=('first', 'second'))
|
|
)
|
|
self.assertIs(operation.references_field('Other', 'whatever'), True)
|
|
self.assertIs(operation.references_field('Through', 'whatever'), False)
|
|
self.assertIs(operation.references_field('Through', 'first'), True)
|
|
self.assertIs(operation.references_field('Through', 'second'), True)
|