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Code Issues Releases Wiki Activity

Fixed #26593 -- Leveraged deferrable_sql() in SchemaEditor

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This commit is contained in:
Markus Holtermann 2016-05-06 02:13:32 +02:00
parent c6499d532d
commit deeffde84a
3 changed files with 3 additions and 5 deletions
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3
django/db/backends/base/schema.py
View File

@ -58,7 +58,7 @@ class BaseDatabaseSchemaEditor(object):
sql_create_fk = (
"ALTER TABLE %(table)s ADD CONSTRAINT %(name)s FOREIGN KEY (%(column)s) "
"REFERENCES %(to_table)s (%(to_column)s) DEFERRABLE INITIALLY DEFERRED"
"REFERENCES %(to_table)s (%(to_column)s)%(deferrable)s"
)
sql_create_inline_fk = None
sql_delete_fk = "ALTER TABLE %(table)s DROP CONSTRAINT %(name)s"
@ -889,6 +889,7 @@ class BaseDatabaseSchemaEditor(object):
"column": self.quote_name(from_column),
"to_table": self.quote_name(to_table),
"to_column": self.quote_name(to_column),
"deferrable": self.connection.ops.deferrable_sql(),
}
def _create_unique_sql(self, model, columns):

4
django/db/backends/mysql/schema.py
View File

@ -13,10 +13,6 @@ class DatabaseSchemaEditor(BaseDatabaseSchemaEditor):
sql_delete_unique = "ALTER TABLE %(table)s DROP INDEX %(name)s"
sql_create_fk = (
"ALTER TABLE %(table)s ADD CONSTRAINT %(name)s FOREIGN KEY "
"(%(column)s) REFERENCES %(to_table)s (%(to_column)s)"
)
sql_delete_fk = "ALTER TABLE %(table)s DROP FOREIGN KEY %(name)s"
sql_delete_index = "DROP INDEX %(name)s ON %(table)s"

1
tests/schema/tests.py
View File

@ -1628,6 +1628,7 @@ class SchemaTests(TransactionTestCase):
"column": editor.quote_name(column),
"to_table": editor.quote_name(table),
"to_column": editor.quote_name(model._meta.auto_field.column),
"deferrable": connection.ops.deferrable_sql(),
}
)
editor.alter_field(model, get_field(Author, CASCADE, field_class=ForeignKey), field)