Re: [Django] #25564: Django Admin's "View on Site" ignores model's custom manager

[Django]

#25564: Django Admin's "View on Site" ignores model's custom manager
-+-
 Reporter:  yuriiz   |Owner:  nobody
 Type:  Bug  |   Status:  closed
Component:   |  Version:  1.8
  contrib.contenttypes   |
 Severity:  Normal   |   Resolution:  duplicate
 Keywords:   | Triage Stage:
 |  Unreviewed
Has patch:  0|  Needs documentation:  0
  Needs tests:  0|  Patch needs improvement:  0
Easy pickings:  0|UI/UX:  0
-+-

Comment (by yuriiz):

 I confirm, looks related.

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Ticket URL: 
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Re: [Django] #25564: Django Admin's "View on Site" ignores model's custom manager

[Django]

#25564: Django Admin's "View on Site" ignores model's custom manager
-+-
 Reporter:  yuriiz   |Owner:  nobody
 Type:  Bug  |   Status:  closed
Component:   |  Version:  1.8
  contrib.contenttypes   |
 Severity:  Normal   |   Resolution:  duplicate
 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 timgraham):

 * status:  new => closed
 * component:  Uncategorized => contrib.contenttypes
 * resolution:   => duplicate
 * type:  Uncategorized => Bug


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Ticket URL: 
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Re: [Django] #25564: Django Admin's "View on Site" ignores model's custom manager

[Django]

#25564: Django Admin's "View on Site" ignores model's custom manager
---+--
 Reporter:  yuriiz |Owner:  nobody
 Type:  Uncategorized  |   Status:  new
Component:  Uncategorized  |  Version:  1.8
 Severity:  Normal |   Resolution:
 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 timgraham):

 * needs_better_patch:   => 0
 * needs_tests:   => 0
 * needs_docs:   => 0


Comment:

 Looks like a duplicate of #16281. Can you confirm?

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[Django] #25564: Django Admin's "View on Site" ignores model's custom manager

[Django]

#25564: Django Admin's "View on Site" ignores model's custom manager
---+
 Reporter:  yuriiz |  Owner:  nobody
 Type:  Uncategorized  | Status:  new
Component:  Uncategorized  |Version:  1.8
 Severity:  Normal |   Keywords:
 Triage Stage:  Unreviewed |  Has patch:  0
Easy pickings:  0  |  UI/UX:  0
---+
 When there is model A located in DB other than default having custom
 manager and/or custom DB router to query appropriate database they both
 are ignored by django admin's "View on Site" feature. The problem indeed
 is deeper in content types get_object_for_this_type() implementation.
 Example source code:

 {{{
 class Manager(models.Manager):

 def get_queryset(self):
 return super(Manager, self).get_queryset().using('other')

 class A(models.Model):
 ...
 objects = Manager()

 class Router(object):

 def db_for_read(self, model, **hints):
 if isinstance(model, A):
 return 'other'

 def db_for_write(self, model, **hints):
 if isinstance(model, A):
 return 'other'

 }}}

 '''Current behaviour:''' with this setup clicking "View on Site" at model
 A's admin still results at "no such table: a" with traceback:
 {{{
 Request Method: GET
 Request URL: http://localhost:8000/admin/r/27/1432/

 Traceback:
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/django/core/handlers/base.py" in get_response
   132. response = wrapped_callback(request,
 *callback_args, **callback_kwargs)
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/django/contrib/admin/sites.py" in wrapper
   254. return self.admin_view(view, cacheable)(*args,
 **kwargs)
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/django/utils/decorators.py" in _wrapped_view
   110. response = view_func(request, *args, **kwargs)
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/django/views/decorators/cache.py" in _wrapped_view_func
   57. response = view_func(request, *args, **kwargs)
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/django/contrib/admin/sites.py" in inner
   233. return view(request, *args, **kwargs)
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/django/contrib/contenttypes/views.py" in shortcut
   21. obj = content_type.get_object_for_this_type(pk=object_id)
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/django/contrib/contenttypes/models.py" in
 get_object_for_this_type
   194. return
 self.model_class()._base_manager.using(self._state.db).get(**kwargs)
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/django/db/models/query.py" in get
   328. num = len(clone)
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/django/db/models/query.py" in __len__
   144. self._fetch_all()
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/django/db/models/query.py" in _fetch_all
   965. self._result_cache = list(self.iterator())
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/django/db/models/query.py" in iterator
   238. results = compiler.execute_sql()
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/django/db/models/sql/compiler.py" in execute_sql
   840. cursor.execute(sql, params)
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/debug_toolbar/panels/sql/tracking.py" in execute
   159. return self._record(self.cursor.execute, sql, params)
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/debug_toolbar/panels/sql/tracking.py" in _record
   101. return method(sql, params)
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/django/db/backends/utils.py" in execute
   79. return super(CursorDebugWrapper, self).execute(sql,
 params)
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/django/db/backends/utils.py" in execute
   64. return self.cursor.execute(sql, params)
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/django/db/utils.py" in __exit__
   97. six.reraise(dj_exc_type, dj_exc_value, traceback)
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/django/db/backends/utils.py" in execute
   64. return self.cursor.execute(sql, params)
 File "/home/i/frontend/local/lib/python2.7/site-
 packages/django/db/backends/sqlite3/base.py" in execute
   318. return Database.Cursor.execute(self, query, params)

 Exception Type: OperationalError at /admin/r/27/1432/
 Exception Value: no such table: categories

 }}}


 '''Expected behaviour:''' django admin and get_object_for_this_type()
 should use custom router / custom manager

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Ticket URL: 
Django 
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