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Diffstat (limited to 'lib/sqlalchemy/orm/attributes.py')
| -rw-r--r-- | lib/sqlalchemy/orm/attributes.py | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/sqlalchemy/orm/attributes.py b/lib/sqlalchemy/orm/attributes.py index ff730d745..5ba8be439 100644 --- a/lib/sqlalchemy/orm/attributes.py +++ b/lib/sqlalchemy/orm/attributes.py @@ -973,6 +973,14 @@ class CollectionAttributeImpl(AttributeImpl): return value def fire_pre_remove_event(self, state, dict_, initiator): + """A special event used for pop() operations. + + The "remove" event needs to have the item to be removed passed to + it, which in the case of pop from a set, we don't have a way to access + the item before the operation. the event is used for all pop() + operations (even though set.pop is the one where it is really needed). + + """ state._modified_event(dict_, self, NEVER_SET, True) def fire_remove_event(self, state, dict_, value, initiator): |