Revision d546637f snf-django-lib/snf_django/lib/db/managers.py

b/snf-django-lib/snf_django/lib/db/managers.py
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from django.db.models.query import QuerySet, EmptyQuerySet
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from django.db.models.sql.datastructures import EmptyResultSet
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class ForUpdateManager(Manager):


  		





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    """ Model manager implementing SELECT .. FOR UPDATE statement


  		





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            return query[0]


  		





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        if not num:


  		





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            raise self.model.DoesNotExist(


  		





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                    "%s matching query does not exist. "


  		





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                    "Lookup parameters were %s" %


  		





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                    (self.model._meta.object_name, kwargs))


  		





  
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                "%s matching query does not exist. "


  		





  
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                "Lookup parameters were %s" %


  		





  
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                (self.model._meta.object_name, kwargs))


  		





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        raise self.model.MultipleObjectsReturned(


  		





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            "get() returned more than one %s -- it returned %s! "


  		





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            "Lookup parameters were %s" %


  		












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