From 7e5e985c0e17a2d300f9aa8633c3610db600f2e2 Mon Sep 17 00:00:00 2001 From: Mike Bayer Date: Sun, 15 Oct 2006 00:07:06 +0000 Subject: - ForeignKey(Constraint) supports "use_alter=True", to create/drop a foreign key via ALTER. this allows circular foreign key relationships to be set up. --- lib/sqlalchemy/databases/mysql.py | 3 +++ 1 file changed, 3 insertions(+) (limited to 'lib/sqlalchemy/databases/mysql.py') diff --git a/lib/sqlalchemy/databases/mysql.py b/lib/sqlalchemy/databases/mysql.py index 2fa7e9227..86b74c364 100644 --- a/lib/sqlalchemy/databases/mysql.py +++ b/lib/sqlalchemy/databases/mysql.py @@ -456,6 +456,9 @@ class MySQLSchemaDropper(ansisql.ANSISchemaDropper): def visit_index(self, index): self.append("\nDROP INDEX " + index.name + " ON " + index.table.name) self.execute() + def drop_foreignkey(self, constraint): + self.append("ALTER TABLE %s DROP FOREIGN KEY %s" % (self.preparer.format_table(constraint.table), constraint.name)) + self.execute() class MySQLIdentifierPreparer(ansisql.ANSIIdentifierPreparer): def __init__(self, dialect): -- cgit v1.2.1