mirror of
https://github.com/django/django.git
synced 2024-12-22 17:16:24 +00:00
87 lines
3.6 KiB
Python
87 lines
3.6 KiB
Python
import unittest
|
|
|
|
from django.db import connection
|
|
from django.test import TransactionTestCase, skipUnlessDBFeature
|
|
|
|
from ..models import Person, Square
|
|
|
|
|
|
@unittest.skipUnless(connection.vendor == "oracle", "Oracle tests")
|
|
class DatabaseSequenceTests(TransactionTestCase):
|
|
available_apps = []
|
|
|
|
def test_get_sequences(self):
|
|
with connection.cursor() as cursor:
|
|
seqs = connection.introspection.get_sequences(
|
|
cursor, Square._meta.db_table, Square._meta.local_fields
|
|
)
|
|
self.assertEqual(len(seqs), 1)
|
|
self.assertIsNotNone(seqs[0]["name"])
|
|
self.assertEqual(seqs[0]["table"], Square._meta.db_table)
|
|
self.assertEqual(seqs[0]["column"], "id")
|
|
|
|
def test_get_sequences_manually_created_index(self):
|
|
with connection.cursor() as cursor:
|
|
with connection.schema_editor() as editor:
|
|
editor._drop_identity(Square._meta.db_table, "id")
|
|
seqs = connection.introspection.get_sequences(
|
|
cursor, Square._meta.db_table, Square._meta.local_fields
|
|
)
|
|
self.assertEqual(
|
|
seqs, [{"table": Square._meta.db_table, "column": "id"}]
|
|
)
|
|
# Recreate model, because adding identity is impossible.
|
|
editor.delete_model(Square)
|
|
editor.create_model(Square)
|
|
|
|
@skipUnlessDBFeature("supports_collation_on_charfield")
|
|
def test_get_table_description_view_default_collation(self):
|
|
person_table = connection.introspection.identifier_converter(
|
|
Person._meta.db_table
|
|
)
|
|
first_name_column = connection.ops.quote_name(
|
|
Person._meta.get_field("first_name").column
|
|
)
|
|
person_view = connection.introspection.identifier_converter("TEST_PERSON_VIEW")
|
|
with connection.cursor() as cursor:
|
|
cursor.execute(
|
|
f"CREATE VIEW {person_view} "
|
|
f"AS SELECT {first_name_column} FROM {person_table}"
|
|
)
|
|
try:
|
|
columns = connection.introspection.get_table_description(
|
|
cursor, person_view
|
|
)
|
|
self.assertEqual(len(columns), 1)
|
|
self.assertIsNone(columns[0].collation)
|
|
finally:
|
|
cursor.execute(f"DROP VIEW {person_view}")
|
|
|
|
@skipUnlessDBFeature("supports_collation_on_charfield")
|
|
def test_get_table_description_materialized_view_non_default_collation(self):
|
|
person_table = connection.introspection.identifier_converter(
|
|
Person._meta.db_table
|
|
)
|
|
first_name_column = connection.ops.quote_name(
|
|
Person._meta.get_field("first_name").column
|
|
)
|
|
person_mview = connection.introspection.identifier_converter(
|
|
"TEST_PERSON_MVIEW"
|
|
)
|
|
collation = connection.features.test_collations.get("ci")
|
|
with connection.cursor() as cursor:
|
|
cursor.execute(
|
|
f"CREATE MATERIALIZED VIEW {person_mview} "
|
|
f"DEFAULT COLLATION {collation} "
|
|
f"AS SELECT {first_name_column} FROM {person_table}"
|
|
)
|
|
try:
|
|
columns = connection.introspection.get_table_description(
|
|
cursor, person_mview
|
|
)
|
|
self.assertEqual(len(columns), 1)
|
|
self.assertIsNotNone(columns[0].collation)
|
|
self.assertNotEqual(columns[0].collation, collation)
|
|
finally:
|
|
cursor.execute(f"DROP MATERIALIZED VIEW {person_mview}")
|