x/sqlalchemy-migrate
Code Issues Proposed changes

add not supported exceptions for sqlite constraints

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This commit is contained in:
iElectric
2009-06-27 14:33:40 +00:00
parent 5a06b033d2
commit 75e93aa410
1 changed files with 19 additions and 3 deletions
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22
migrate/changeset/databases/sqlite.py
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@@ -83,7 +83,7 @@ class SQLiteSchemaChanger(SQLiteHelper, ansisql.ANSISchemaChanger):
self._not_supported('ALTER INDEX')
class SQLiteConstraintGenerator(ansisql.ANSIConstraintGenerator):
class SQLiteConstraintGenerator(ansisql.ANSIConstraintGenerator, SQLiteCommon):
def visit_migrate_primary_key_constraint(self, constraint):
tmpl = "CREATE UNIQUE INDEX %s ON %s ( %s )"
@@ -94,8 +94,15 @@ class SQLiteConstraintGenerator(ansisql.ANSIConstraintGenerator):
self.append(msg)
self.execute()
def visit_migrate_foreign_key_constraint(self, *p, **k):
self._not_supported('ALTER TABLE ADD CONSTRAINT')
class SQLiteConstraintDropper(ansisql.ANSIColumnDropper, ansisql.ANSIConstraintCommon):
def visit_migrate_unique_constraint(self, *p, **k):
self._not_supported('ALTER TABLE ADD CONSTRAINT')
class SQLiteConstraintDropper(ansisql.ANSIColumnDropper,
SQLiteCommon,
ansisql.ANSIConstraintCommon):
def visit_migrate_primary_key_constraint(self, constraint):
tmpl = "DROP INDEX %s "
@@ -104,7 +111,16 @@ class SQLiteConstraintDropper(ansisql.ANSIColumnDropper, ansisql.ANSIConstraintC
self.append(msg)
self.execute()
# TODO: add not_supported tags for constraint dropper/generator
def visit_migrate_foreign_key_constraint(self, *p, **k):
self._not_supported('ALTER TABLE DROP CONSTRAINT')
def visit_migrate_check_constraint(self, *p, **k):
self._not_supported('ALTER TABLE DROP CONSTRAINT')
def visit_migrate_unique_constraint(self, *p, **k):
self._not_supported('ALTER TABLE DROP CONSTRAINT')
# TODO: technically primary key is a NOT NULL + UNIQUE constraint, should add NOT NULL to index
class SQLiteDialect(ansisql.ANSIDialect):