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Fixed #20888 -- Added support for column order in class-based indexes.

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Akshesh 2016-07-22 18:22:44 +05:30 • committed by Tim Graham
parent 6b842c5998
commit 311a8e8d50
4 changed files with 60 additions and 6 deletions
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24
tests/schema/tests.py
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@ -156,6 +156,12 @@ class SchemaTests(TransactionTestCase):
counts['indexes'] += 1
return counts
def assertIndexOrder(self, table, index, order):
constraints = self.get_constraints(table)
self.assertIn(index, constraints)
index_orders = constraints[index]['orders']
self.assertTrue(all([(val == expected) for val, expected in zip(index_orders, order)]))
# Tests
def test_creation_deletion(self):
"""
@ -1597,6 +1603,24 @@ class SchemaTests(TransactionTestCase):
editor.remove_index(Author, index)
self.assertNotIn('name', self.get_indexes(Author._meta.db_table))
def test_order_index(self):
"""
Indexes defined with ordering (ASC/DESC) defined on column
"""
with connection.schema_editor() as editor:
editor.create_model(Author)
# The table doesn't have an index
self.assertNotIn('title', self.get_indexes(Author._meta.db_table))
index_name = 'author_name_idx'
# Add the index
index = Index(fields=['name', '-weight'], name=index_name)
with connection.schema_editor() as editor:
editor.add_index(Author, index)
if connection.features.supports_index_column_ordering:
if connection.features.uppercases_column_names:
index_name = index_name.upper()
self.assertIndexOrder(Author._meta.db_table, index_name, ['ASC', 'DESC'])
def test_indexes(self):
"""
Tests creation/altering of indexes