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3bb0f118ca
Avoided introducing a new regex-based SQL splitter in the migrations
framework, before we're bound by backwards compatibility.
Adapted this change to the legacy "initial SQL data" feature, even
though it's already deprecated, in order to facilitate the transition
to migrations.
sqlparse becomes mandatory for RunSQL on some databases (all but
PostgreSQL). There's no API to provide a single statement and tell
Django not to attempt splitting. Since we have a more robust splitting
implementation, that seems like a good tradeoff. It's easier to add a
new keyword argument later if necessary than to remove one.
Many people contributed to both tickets, thank you all, and especially
Claude for the review.
Refs #22401.
Backport of 8b5b199 from master
800 lines
37 KiB
Python
800 lines
37 KiB
Python
import unittest
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try:
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import sqlparse
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except ImportError:
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sqlparse = None
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from django.db import connection, migrations, models, router
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from django.db.migrations.migration import Migration
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from django.db.migrations.state import 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, DatabaseError
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from .test_base import MigrationTestBase
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class OperationTests(MigrationTestBase):
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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 apply_operations(self, app_label, project_state, operations):
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migration = Migration('name', app_label)
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migration.operations = operations
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with connection.schema_editor() 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):
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migration = Migration('name', app_label)
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migration.operations = operations
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with connection.schema_editor() as editor:
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return migration.unapply(project_state, editor)
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def set_up_test_model(self, app_label, second_model=False, related_model=False, mti_model=False):
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"""
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Creates a test model state and database table.
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"""
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# Delete the tables if they already exist
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with connection.cursor() as cursor:
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try:
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cursor.execute("DROP TABLE %s_pony" % app_label)
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except DatabaseError:
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pass
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try:
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cursor.execute("DROP TABLE %s_stable" % app_label)
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except DatabaseError:
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pass
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# Make the "current" state
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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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)]
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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 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")),
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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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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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to='Pony',
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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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return self.apply_operations(app_label, ProjectState(), operations)
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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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# 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(len(definition[1]), 2)
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self.assertEqual(len(definition[2]), 0)
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self.assertEqual(definition[1][0], "Pony")
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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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new_apps = new_state.render()
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Pony = new_apps.get_model("test_crmomm", "Pony")
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Stable = new_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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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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to='test_crmoih.Pony',
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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_delete_model(self):
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"""
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Tests the DeleteModel operation.
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"""
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project_state = self.set_up_test_model("test_dlmo")
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# Test the state alteration
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operation = migrations.DeleteModel("Pony")
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new_state = project_state.clone()
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operation.state_forwards("test_dlmo", new_state)
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self.assertNotIn(("test_dlmo", "pony"), new_state.models)
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# Test the database alteration
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self.assertTableExists("test_dlmo_pony")
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with connection.schema_editor() as editor:
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operation.database_forwards("test_dlmo", editor, project_state, new_state)
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self.assertTableNotExists("test_dlmo_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_dlmo", editor, new_state, project_state)
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self.assertTableExists("test_dlmo_pony")
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def test_rename_model(self):
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"""
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Tests the RenameModel operation.
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"""
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project_state = self.set_up_test_model("test_rnmo")
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# Test the state alteration
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operation = migrations.RenameModel("Pony", "Horse")
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new_state = project_state.clone()
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operation.state_forwards("test_rnmo", new_state)
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self.assertNotIn(("test_rnmo", "pony"), new_state.models)
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self.assertIn(("test_rnmo", "horse"), new_state.models)
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# Test the database alteration
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self.assertTableExists("test_rnmo_pony")
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self.assertTableNotExists("test_rnmo_horse")
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with connection.schema_editor() as editor:
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operation.database_forwards("test_rnmo", editor, project_state, new_state)
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self.assertTableNotExists("test_rnmo_pony")
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self.assertTableExists("test_rnmo_horse")
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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_rnmo", editor, new_state, project_state)
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self.assertTableExists("test_dlmo_pony")
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self.assertTableNotExists("test_rnmo_horse")
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# See #22248 - this will fail until that's fixed.
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#
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# def test_rename_model_with_related(self):
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# """
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# Tests the real-world combo of a RenameModel operation with AlterField
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# for a related field.
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# """
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# project_state = self.set_up_test_model(
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# "test_rnmowr", related_model=True)
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# # Test the state alterations
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# model_operation = migrations.RenameModel("Pony", "Horse")
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# new_state = project_state.clone()
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# model_operation.state_forwards("test_rnmowr", new_state)
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# self.assertNotIn(("test_rnmowr", "pony"), new_state.models)
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# self.assertIn(("test_rnmowr", "horse"), new_state.models)
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# self.assertEqual(
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# "Pony",
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# project_state.render().get_model("test_rnmowr", "rider")
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# ._meta.get_field_by_name("pony")[0].rel.to._meta.object_name)
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# field_operation = migrations.AlterField(
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# "Rider", "pony", models.ForeignKey("Horse"))
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# field_operation.state_forwards("test_rnmowr", new_state)
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# self.assertEqual(
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# "Horse",
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# new_state.render().get_model("test_rnmowr", "rider")
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# ._meta.get_field_by_name("pony")[0].rel.to._meta.object_name)
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# # Test the database alterations
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# self.assertTableExists("test_rnmowr_pony")
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# self.assertTableNotExists("test_rnmowr_horse")
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# with connection.schema_editor() as editor:
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# model_operation.database_forwards("test_rnmowr", editor, project_state, new_state)
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# field_operation.database_forwards("test_rnmowr", editor, project_state, new_state)
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# self.assertTableNotExists("test_rnmowr_pony")
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# self.assertTableExists("test_rnmowr_horse")
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# # And test reversal
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# with connection.schema_editor() as editor:
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# field_operation.database_backwards("test_rnmowr", editor, new_state, project_state)
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# model_operation.database_backwards("test_rnmowr", editor, new_state, project_state)
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# self.assertTableExists("test_rnmowr_pony")
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# self.assertTableNotExists("test_rnmowr_horse")
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def test_add_field(self):
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"""
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Tests the AddField operation.
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"""
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project_state = self.set_up_test_model("test_adfl")
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# Test the state alteration
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operation = migrations.AddField(
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"Pony",
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"height",
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models.FloatField(null=True, default=5),
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)
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new_state = project_state.clone()
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operation.state_forwards("test_adfl", new_state)
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self.assertEqual(len(new_state.models["test_adfl", "pony"].fields), 4)
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field = [
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f for n, f in new_state.models["test_adfl", "pony"].fields
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if n == "height"
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][0]
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self.assertEqual(field.default, 5)
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# Test the database alteration
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self.assertColumnNotExists("test_adfl_pony", "height")
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with connection.schema_editor() as editor:
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operation.database_forwards("test_adfl", editor, project_state, new_state)
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self.assertColumnExists("test_adfl_pony", "height")
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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_adfl", editor, new_state, project_state)
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self.assertColumnNotExists("test_adfl_pony", "height")
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def test_column_name_quoting(self):
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"""
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Column names that are SQL keywords shouldn't cause problems when used
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in migrations (#22168).
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"""
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project_state = self.set_up_test_model("test_regr22168")
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operation = migrations.AddField(
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"Pony",
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"order",
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models.IntegerField(default=0),
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)
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new_state = project_state.clone()
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operation.state_forwards("test_regr22168", new_state)
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with connection.schema_editor() as editor:
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operation.database_forwards("test_regr22168", editor, project_state, new_state)
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self.assertColumnExists("test_regr22168_pony", "order")
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def test_add_field_preserve_default(self):
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"""
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Tests the AddField operation's state alteration
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when preserve_default = False.
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"""
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project_state = self.set_up_test_model("test_adflpd")
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# Test the state alteration
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operation = migrations.AddField(
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"Pony",
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"height",
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models.FloatField(null=True, default=4),
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preserve_default=False,
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)
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new_state = project_state.clone()
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operation.state_forwards("test_adflpd", new_state)
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self.assertEqual(len(new_state.models["test_adflpd", "pony"].fields), 4)
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field = [
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f for n, f in new_state.models["test_adflpd", "pony"].fields
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if n == "height"
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][0]
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self.assertEqual(field.default, NOT_PROVIDED)
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# Test the database alteration
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project_state.render().get_model("test_adflpd", "pony").objects.create(
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weight=4,
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)
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self.assertColumnNotExists("test_adflpd_pony", "height")
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with connection.schema_editor() as editor:
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operation.database_forwards("test_adflpd", editor, project_state, new_state)
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self.assertColumnExists("test_adflpd_pony", "height")
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def test_add_field_m2m(self):
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"""
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Tests the AddField operation with a ManyToManyField.
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"""
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project_state = self.set_up_test_model("test_adflmm", second_model=True)
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# Test the state alteration
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operation = migrations.AddField("Pony", "stables", models.ManyToManyField("Stable", related_name="ponies"))
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new_state = project_state.clone()
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operation.state_forwards("test_adflmm", new_state)
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self.assertEqual(len(new_state.models["test_adflmm", "pony"].fields), 4)
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# Test the database alteration
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self.assertTableNotExists("test_adflmm_pony_stables")
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with connection.schema_editor() as editor:
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operation.database_forwards("test_adflmm", editor, project_state, new_state)
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self.assertTableExists("test_adflmm_pony_stables")
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self.assertColumnNotExists("test_adflmm_pony", "stables")
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# Make sure the M2M field actually works
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with atomic():
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new_apps = new_state.render()
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Pony = new_apps.get_model("test_adflmm", "Pony")
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p = Pony.objects.create(pink=False, weight=4.55)
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p.stables.create()
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self.assertEqual(p.stables.count(), 1)
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p.stables.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_adflmm", editor, new_state, project_state)
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self.assertTableNotExists("test_adflmm_pony_stables")
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def test_alter_field_m2m(self):
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project_state = self.set_up_test_model("test_alflmm", second_model=True)
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project_state = self.apply_operations("test_alflmm", project_state, operations=[
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migrations.AddField("Pony", "stables", models.ManyToManyField("Stable", related_name="ponies"))
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])
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new_apps = project_state.render()
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Pony = new_apps.get_model("test_alflmm", "Pony")
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self.assertFalse(Pony._meta.get_field('stables').blank)
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project_state = self.apply_operations("test_alflmm", project_state, operations=[
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migrations.AlterField("Pony", "stables", models.ManyToManyField(to="Stable", related_name="ponies", blank=True))
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])
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new_apps = project_state.render()
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Pony = new_apps.get_model("test_alflmm", "Pony")
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self.assertTrue(Pony._meta.get_field('stables').blank)
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def test_remove_field_m2m(self):
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project_state = self.set_up_test_model("test_rmflmm", second_model=True)
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project_state = self.apply_operations("test_rmflmm", project_state, operations=[
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migrations.AddField("Pony", "stables", models.ManyToManyField("Stable", related_name="ponies"))
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])
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self.assertTableExists("test_rmflmm_pony_stables")
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operations = [migrations.RemoveField("Pony", "stables")]
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self.apply_operations("test_rmflmm", project_state, operations=operations)
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self.assertTableNotExists("test_rmflmm_pony_stables")
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# And test reversal
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self.unapply_operations("test_rmflmm", project_state, operations=operations)
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self.assertTableExists("test_rmflmm_pony_stables")
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def test_remove_field_m2m_with_through(self):
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project_state = self.set_up_test_model("test_rmflmmwt", second_model=True)
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self.assertTableNotExists("test_rmflmmwt_ponystables")
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project_state = self.apply_operations("test_rmflmmwt", project_state, operations=[
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migrations.CreateModel("PonyStables", fields=[
|
|
("pony", models.ForeignKey('test_rmflmmwt.Pony')),
|
|
("stable", models.ForeignKey('test_rmflmmwt.Stable')),
|
|
]),
|
|
migrations.AddField("Pony", "stables", models.ManyToManyField("Stable", related_name="ponies", through='test_rmflmmwt.PonyStables'))
|
|
])
|
|
self.assertTableExists("test_rmflmmwt_ponystables")
|
|
|
|
operations = [migrations.RemoveField("Pony", "stables")]
|
|
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")
|
|
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")
|
|
|
|
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")
|
|
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")
|
|
|
|
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))
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_alfl", new_state)
|
|
self.assertEqual(project_state.models["test_alfl", "pony"].get_field_by_name("pink").null, False)
|
|
self.assertEqual(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")
|
|
|
|
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)
|
|
|
|
@unittest.skipUnless(connection.features.supports_foreign_keys, "No FK support")
|
|
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 = [c.type_code for c in connection.introspection.get_table_description(cursor, "test_alflpkfk_pony") if c.name == "id"][0]
|
|
fk_type = [c.type_code for c in connection.introspection.get_table_description(cursor, "test_alflpkfk_rider") if c.name == "pony_id"][0]
|
|
self.assertEqual(id_type, fk_type)
|
|
|
|
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_rename_field(self):
|
|
"""
|
|
Tests the RenameField operation.
|
|
"""
|
|
project_state = self.set_up_test_model("test_rnfl")
|
|
# Test the state alteration
|
|
operation = migrations.RenameField("Pony", "pink", "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])
|
|
# 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")
|
|
# 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")
|
|
|
|
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")])
|
|
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)
|
|
|
|
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")])
|
|
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"])
|
|
|
|
@unittest.skipIf(sqlparse is None and connection.features.requires_sqlparse_for_splitting, "Missing sqlparse")
|
|
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 commment to test splitting on SQLite and MySQL respectively
|
|
"CREATE TABLE i_love_ponies (id int, special_thing int);\n"
|
|
"INSERT INTO i_love_ponies (id, special_thing) VALUES (1, 42); -- this is magic!\n"
|
|
"INSERT INTO i_love_ponies (id, special_thing) VALUES (2, 51);\n",
|
|
"DROP TABLE i_love_ponies",
|
|
state_operations=[migrations.CreateModel("SomethingElse", [("id", models.AutoField(primary_key=True))])],
|
|
)
|
|
# 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 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)
|
|
# 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")
|
|
|
|
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)
|
|
# 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.render().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.render().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.render().get_model("test_runpython", "Pony").objects.count(), 0)
|
|
# Now test we can't use a string
|
|
with self.assertRaises(ValueError):
|
|
operation = migrations.RunPython("print 'ahahaha'")
|
|
|
|
# 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.render().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.render().get_model("test_runpython", "Pony").objects.count(), 4)
|
|
|
|
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.render().get_model("test_runpython", "Pony").objects.count(), 6)
|
|
self.assertEqual(project_state.render().get_model("test_runpython", "ShetlandPony").objects.count(), 2)
|
|
|
|
|
|
class MigrateNothingRouter(object):
|
|
"""
|
|
A router that sends all writes to the other database.
|
|
"""
|
|
def allow_migrate(self, db, model):
|
|
return False
|
|
|
|
|
|
class MultiDBOperationTests(MigrationTestBase):
|
|
multi_db = True
|
|
|
|
def setUp(self):
|
|
# Make the 'other' database appear to be a slave of the 'default'
|
|
self.old_routers = router.routers
|
|
router.routers = [MigrateNothingRouter()]
|
|
|
|
def tearDown(self):
|
|
# Restore the 'other' database as an independent database
|
|
router.routers = self.old_routers
|
|
|
|
def test_create_model(self):
|
|
"""
|
|
Tests that CreateModel honours multi-db settings.
|
|
"""
|
|
operation = migrations.CreateModel(
|
|
"Pony",
|
|
[
|
|
("id", models.AutoField(primary_key=True)),
|
|
("pink", models.IntegerField(default=1)),
|
|
],
|
|
)
|
|
# Test the state alteration
|
|
project_state = ProjectState()
|
|
new_state = project_state.clone()
|
|
operation.state_forwards("test_crmo", new_state)
|
|
# Test the database alteration
|
|
self.assertTableNotExists("test_crmo_pony")
|
|
with connection.schema_editor() as editor:
|
|
operation.database_forwards("test_crmo", editor, project_state, new_state)
|
|
self.assertTableNotExists("test_crmo_pony")
|
|
# And test reversal
|
|
with connection.schema_editor() as editor:
|
|
operation.database_backwards("test_crmo", editor, new_state, project_state)
|
|
self.assertTableNotExists("test_crmo_pony")
|