#30531: Exception when creating an inherited model object with existing base
     Reporter:  Victor Porton        |                    Owner:  nobody
         Type:  Bug                  |                   Status:  closed
    Component:  Database layer       |                  Version:  2.2
  (models, ORM)                      |
     Severity:  Normal               |               Resolution:  invalid
     Keywords:                       |             Triage Stage:
                                     |  Unreviewed
    Has patch:  0                    |      Needs documentation:  0
  Needs tests:  0                    |  Patch needs improvement:  0
Easy pickings:  0                    |                    UI/UX:  0
Changes (by Simon Charette):

 * status:  new => closed
 * resolution:   => invalid


 If you want to use `Derived.base` as your inheritance parent link you have
 mark it accordingly].

 Right now your table `Derived` model has two o2o fields pointing at
 `Base`; the explicit one you defined and the implicit parent link
 `base_ptr`. When you try to create your `Derived` object in `test_bug`
 it's the `base_ptr.v` field value that is missing.

 Adding `parent_link=True` to your `Derived.base` field should address your

 Closing per TicketClosingReasons/UseSupportChannels.

Ticket URL: <https://code.djangoproject.com/ticket/30531#comment:1>
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