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Diffstat (limited to 'lib/sqlalchemy/attributes.py')
| -rw-r--r-- | lib/sqlalchemy/attributes.py | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/sqlalchemy/attributes.py b/lib/sqlalchemy/attributes.py index a402a9e91..a41cdac9d 100644 --- a/lib/sqlalchemy/attributes.py +++ b/lib/sqlalchemy/attributes.py @@ -353,10 +353,20 @@ class AttributeManager(object): try: attr = obj.__dict__['_managed_attributes'] except KeyError: + trigger = obj.__dict__.pop('_managed_trigger', None) + if trigger: + trigger() attr = {} obj.__dict__['_managed_attributes'] = attr return attr + def trigger_history(self, obj, callable): + try: + del obj.__dict__['_managed_attributes'] + except KeyError: + pass + obj.__dict__['_managed_trigger'] = callable + def reset_history(self, obj, key): """removes the history object for the given attribute on the given object. When the attribute is next accessed, a new container will be created via the |