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Code Issues 25 Releases Wiki Activity

Fixed #24417 -- Added ModelAdmin.get_list_select_related()

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This commit is contained in:
Loek van Gent 2015-03-16 11:00:16 +01:00 committed by Tim Graham
parent 8d90489fe0
commit 35b3158d52
4 changed files with 47 additions and 5 deletions
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10
django/contrib/admin/options.py
View File

@ -855,6 +855,13 @@ class ModelAdmin(BaseModelAdmin):
"""
return self.list_filter
def get_list_select_related(self, request):
"""
Returns a list of fields to add to the select_related() part of the
changelist items query.
"""
return self.list_select_related
def get_search_fields(self, request):
"""
Returns a sequence containing the fields to be searched whenever
@ -1433,6 +1440,7 @@ class ModelAdmin(BaseModelAdmin):
list_display_links = self.get_list_display_links(request, list_display)
list_filter = self.get_list_filter(request)
search_fields = self.get_search_fields(request)
list_select_related = self.get_list_select_related(request)
# Check actions to see if any are available on this changelist
actions = self.get_actions(request)
@ -1444,7 +1452,7 @@ class ModelAdmin(BaseModelAdmin):
try:
cl = ChangeList(request, self.model, list_display,
list_display_links, list_filter, self.date_hierarchy,
search_fields, self.list_select_related, self.list_per_page,
search_fields, list_select_related, self.list_per_page,
self.list_max_show_all, self.list_editable, self)
except IncorrectLookupParameters:

12
docs/ref/contrib/admin/index.txt
View File

@ -920,6 +920,9 @@ subclass::
will call ``select_related('author', 'category')``.
If you need to specify a dynamic value based on the request, you can
implement a :meth:`~ModelAdmin.get_list_select_related` method.
.. attribute:: ModelAdmin.ordering
Set ``ordering`` to specify how lists of objects should be ordered in the
@ -932,7 +935,6 @@ subclass::
If you need to specify a dynamic order (for example depending on user or
language) you can implement a :meth:`~ModelAdmin.get_ordering` method.
.. attribute:: ModelAdmin.paginator
The paginator class to be used for pagination. By default,
@ -1366,6 +1368,14 @@ templates used by the :class:`ModelAdmin` views:
to return the same kind of sequence type as for the
:attr:`~ModelAdmin.list_filter` attribute.
.. method:: ModelAdmin.get_list_select_related(request)
.. versionadded:: 1.9
The ``get_list_select_related`` method is given the ``HttpRequest`` and
should return a boolean or list as :attr:`ModelAdmin.list_select_related`
does.
.. method:: ModelAdmin.get_search_fields(request)
The ``get_search_fields`` method is given the ``HttpRequest`` and is expected

5
docs/releases/1.9.txt
View File

@ -43,6 +43,11 @@ Minor features
the old URL still redirects to the new one for backwards compatibility, but
it may be removed in a future version.
* :meth:`ModelAdmin.get_list_select_related()
<django.contrib.admin.ModelAdmin.get_list_select_related>` was added to allow
changing the ``select_related()`` values used in the admin's changelist query
based on the request.
:mod:`django.contrib.auth`
^^^^^^^^^^^^^^^^^^^^^^^^^^

25
tests/admin_changelist/tests.py
View File

@ -50,9 +50,10 @@ class ChangeListTests(TestCase):
"""
m = ChildAdmin(Child, admin.site)
request = self.factory.get('/child/')
list_select_related = m.get_list_select_related(request)
cl = ChangeList(request, Child, m.list_display, m.list_display_links,
m.list_filter, m.date_hierarchy, m.search_fields,
m.list_select_related, m.list_per_page,
list_select_related, m.list_per_page,
m.list_max_show_all, m.list_editable, m)
self.assertEqual(cl.queryset.query.select_related, {
'parent': {'name': {}}
@ -61,9 +62,10 @@ class ChangeListTests(TestCase):
def test_select_related_as_tuple(self):
ia = InvitationAdmin(Invitation, admin.site)
request = self.factory.get('/invitation/')
list_select_related = ia.get_list_select_related(request)
cl = ChangeList(request, Child, ia.list_display, ia.list_display_links,
ia.list_filter, ia.date_hierarchy, ia.search_fields,
ia.list_select_related, ia.list_per_page,
list_select_related, ia.list_per_page,
ia.list_max_show_all, ia.list_editable, ia)
self.assertEqual(cl.queryset.query.select_related, {'player': {}})
@ -71,12 +73,29 @@ class ChangeListTests(TestCase):
ia = InvitationAdmin(Invitation, admin.site)
ia.list_select_related = ()
request = self.factory.get('/invitation/')
list_select_related = ia.get_list_select_related(request)
cl = ChangeList(request, Child, ia.list_display, ia.list_display_links,
ia.list_filter, ia.date_hierarchy, ia.search_fields,
ia.list_select_related, ia.list_per_page,
list_select_related, ia.list_per_page,
ia.list_max_show_all, ia.list_editable, ia)
self.assertEqual(cl.queryset.query.select_related, False)
def test_get_select_related_custom_method(self):
class GetListSelectRelatedAdmin(admin.ModelAdmin):
list_display = ('band', 'player')
def get_list_select_related(self, request):
return ('band', 'player')
ia = GetListSelectRelatedAdmin(Invitation, admin.site)
request = self.factory.get('/invitation/')
list_select_related = ia.get_list_select_related(request)
cl = ChangeList(request, Child, ia.list_display, ia.list_display_links,
ia.list_filter, ia.date_hierarchy, ia.search_fields,
list_select_related, ia.list_per_page,
ia.list_max_show_all, ia.list_editable, ia)
self.assertEqual(cl.queryset.query.select_related, {'player': {}, 'band': {}})
def test_result_list_empty_changelist_value(self):
"""
Regression test for #14982: EMPTY_CHANGELIST_VALUE should be honored