#29723: Backwards-incompatible change of has_add_permission in 2.1
----------------------------------+------------------------------------
     Reporter:  Aymeric Augustin  |                    Owner:  nobody
         Type:  Bug               |                   Status:  new
    Component:  contrib.admin     |                  Version:  2.1
     Severity:  Release blocker   |               Resolution:
     Keywords:                    |             Triage Stage:  Accepted
    Has patch:  0                 |      Needs documentation:  0
  Needs tests:  0                 |  Patch needs improvement:  0
Easy pickings:  0                 |                    UI/UX:  0
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Changes (by Carlton Gibson):

 * severity:  Normal => Release blocker
 * stage:  Unreviewed => Accepted


Comment:

 Refs #27991 -- Add obj arg to InlineModelAdmin.has_add_permission()

 There's a check to determine how to call has_add_permission():


 {{{
             # RemovedInDjango30Warning: obj will be a required argument.
             args = get_func_args(inline.has_add_permission)
             if 'obj' in args:
                 inline_has_add_permission =
 inline.has_add_permission(request, obj)
             else:
                 inline_has_add_permission =
 inline.has_add_permission(request)
 }}}

 Looks like this should be applied to the other call sites.

 #8936 -- Added a view permission and a read-only admin made the addition
 of the offending `can_add = self.has_add_permission(request, obj) if
 request else True` call raising the exception here.

-- 
Ticket URL: <https://code.djangoproject.com/ticket/29723#comment:1>
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