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54 lines
1.9 KiB
Python
54 lines
1.9 KiB
Python
from unittest import skipUnless
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from django.db import connection
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from django.db.models import Index
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from django.test import TransactionTestCase
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from ..utils import mysql, oracle, postgis
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from .models import City
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class SchemaIndexesTests(TransactionTestCase):
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available_apps = []
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models = [City]
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def get_indexes(self, table):
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with connection.cursor() as cursor:
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constraints = connection.introspection.get_constraints(cursor, table)
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return {
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name: constraint['columns']
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for name, constraint in constraints.items()
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if constraint['index']
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}
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def has_spatial_indexes(self, table):
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if mysql:
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with connection.cursor() as cursor:
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return connection.introspection.supports_spatial_index(cursor, table)
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elif oracle:
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# Spatial indexes in Meta.indexes are not supported by the Oracle
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# backend (see #31252).
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return False
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return True
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@skipUnless(postgis, 'This is a PostGIS-specific test.')
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def test_using_sql(self):
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index = Index(fields=['point'])
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editor = connection.schema_editor()
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self.assertIn(
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'%s USING ' % editor.quote_name(City._meta.db_table),
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str(index.create_sql(City, editor)),
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)
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def test_index_name(self):
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if not self.has_spatial_indexes(City._meta.db_table):
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self.skipTest('Spatial indexes in Meta.indexes are not supported.')
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index_name = 'custom_point_index_name'
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index = Index(fields=['point'], name=index_name)
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with connection.schema_editor() as editor:
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editor.add_index(City, index)
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indexes = self.get_indexes(City._meta.db_table)
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self.assertIn(index_name, indexes)
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self.assertEqual(indexes[index_name], ['point'])
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editor.remove_index(City, index)
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