#7447: QuerySet.update() bypasses custom Model.save() methods
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          Reporter:  emulbreh                |         Owner:  nobody      
            Status:  new                     |     Milestone:  1.0         
         Component:  Database wrapper        |       Version:  SVN         
        Resolution:                          |      Keywords:  qsrf-cleanup
             Stage:  Design decision needed  |     Has_patch:  0           
        Needs_docs:  0                       |   Needs_tests:  0           
Needs_better_patch:  0                       |  
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Comment (by anonymous):

 If update() is changed to iterate over every model, it's going to be much,
 much slower for querysets with thousands or more records.

 Is there a way to check for a custom save method in the model, and only
 iterate if a custom save exists?

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Ticket URL: <http://code.djangoproject.com/ticket/7447#comment:4>
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