#18285: bulk_create and ManyToMany relationships: the relationship is actually 
not
made
-------------------------------------+-------------------------------------
     Reporter:  Michael PALUMBO      |                    Owner:  nobody
  <michael.palumbo87@…>              |                   Status:  new
         Type:                       |                  Version:  1.4
  Cleanup/optimization               |               Resolution:
    Component:  Documentation        |             Triage Stage:  Accepted
     Severity:  Normal               |      Needs documentation:  0
     Keywords:  bulk_create,         |  Patch needs improvement:  0
  relationship                       |                    UI/UX:  0
    Has patch:  0                    |
  Needs tests:  0                    |
Easy pickings:  0                    |
-------------------------------------+-------------------------------------
Changes (by moritzs):

 * component:  Database layer (models, ORM) => Documentation
 * type:  Bug => Cleanup/optimization


Comment:

 [https://docs.djangoproject.com/en/1.4/ref/models/querysets/#bulk-create
 Documentation] says:
 >This has a number of caveats though:
 >
 >* The model's save() method will not be called, and the pre_save and
 post_save signals will not be sent.
 >* It does not work with child models in a multi-table inheritance
 scenario.
 >* If the model's primary key is an !AutoField it does not retrieve and
 set the primary key attribute, as save() does.

 There is a reason why the bulk_create method does not call the models'
 save methods. It should be a fast alternative to call the models' save
 methods in a loop.
 So I think the documentation should be clarified rather then modifying
 bulk_create.

-- 
Ticket URL: <https://code.djangoproject.com/ticket/18285#comment:2>
Django <https://code.djangoproject.com/>
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