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Diffstat (limited to 'lib/sqlalchemy/schema.py')
| -rw-r--r-- | lib/sqlalchemy/schema.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/sqlalchemy/schema.py b/lib/sqlalchemy/schema.py index 1d5b504e2..026825737 100644 --- a/lib/sqlalchemy/schema.py +++ b/lib/sqlalchemy/schema.py @@ -238,6 +238,9 @@ class Column(SchemaItem): original = property(lambda s: s._orig or s) engine = property(lambda s: s.table.engine) + def append_item(self, item): + self._init_items(item) + def _set_primary_key(self): if self.primary_key: return @@ -374,6 +377,10 @@ class ForeignKey(SchemaItem): def _set_parent(self, column): self.parent = column + # if a foreign key was already set up for this, replace it with + # this one, including removing from the parent + if self.parent.foreign_key is not None: + self.parent.table.foreign_keys.remove(self.parent.foreign_key) self.parent.foreign_key = self self.parent.table.foreign_keys.append(self) |