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Implement PULL reverse_delete_rule

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This commit is contained in:
Meir Kriheli 2012-06-07 12:16:00 +03:00
parent 77ebd87fed
commit 8060179f6d
1 changed files with 6 additions and 1 deletions
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7
mongoengine/queryset.py
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@ -10,7 +10,7 @@ from bson.code import Code
from mongoengine import signals from mongoengine import signals
__all__ = ['queryset_manager', 'Q', 'InvalidQueryError', __all__ = ['queryset_manager', 'Q', 'InvalidQueryError',
'DO_NOTHING', 'NULLIFY', 'CASCADE', 'DENY'] 'DO_NOTHING', 'NULLIFY', 'CASCADE', 'DENY', 'PULL']
# The maximum number of items to display in a QuerySet.__repr__ # The maximum number of items to display in a QuerySet.__repr__
@ -21,6 +21,7 @@ DO_NOTHING = 0
NULLIFY = 1 NULLIFY = 1
CASCADE = 2 CASCADE = 2
DENY = 3 DENY = 3
PULL = 4
class DoesNotExist(Exception): class DoesNotExist(Exception):
@ -1319,6 +1320,10 @@ class QuerySet(object):
document_cls.objects(**{field_name + '__in': self}).update( document_cls.objects(**{field_name + '__in': self}).update(
safe_update=safe, safe_update=safe,
**{'unset__%s' % field_name: 1}) **{'unset__%s' % field_name: 1})
elif rule == PULL:
document_cls.objects(**{field_name + '__in': self}).update(
safe_update=safe,
**{'pull_all__%s' % field_name: self})
self._collection.remove(self._query, safe=safe) self._collection.remove(self._query, safe=safe)