Commit 5940da16 authored by Simon Charette's avatar Simon Charette Committed by Tim Graham
Browse files

[1.4.x] Fixed #23754 -- Always allowed reference to the primary key in the admin 

This change allows dynamically created inlines "Add related" button to work
correcly as long as their associated foreign key is pointing to the primary
key of the related model.

Thanks to amorce for the report, Julien Phalip for the initial patch,
and Collin Anderson for the review.

Backport of f9c4e14a from master
parent c83b024b

django/contrib/admin/options.py

+4 −5
Original line number Diff line number Diff line
@@ -281,9 +281,9 @@ class BaseModelAdmin(object): 
        except FieldDoesNotExist:

            return False



        # Check whether this model is the origin of a M2M relationship

        # in which case to_field has to be the pk on this model.

        if opts.many_to_many and field.primary_key:

        # Always allow referencing the primary key since it's already possible

        # to get this information from the change view URL.

        if field.primary_key:

            return True



        # Make sure at least one of the models registered for this site
@@ -294,8 +294,7 @@ class BaseModelAdmin(object): 
            for inline in admin.inlines:

                registered_models.add(inline.model)



        for related_object in (opts.get_all_related_objects(include_hidden=True) +

                               opts.get_all_related_many_to_many_objects()):

        for related_object in opts.get_all_related_objects(include_hidden=True):

            related_model = related_object.model

            if (any(issubclass(model, related_model) for model in registered_models) and

                    related_object.field.rel.get_related_field() == field):

docs/releases/1.4.17.txt

+8 −1
Original line number Diff line number Diff line
@@ -4,7 +4,14 @@ Django 1.4.17 release notes 


*Under development*



Django 1.4.17 ...

Django 1.4.17 fixes a regression in the 1.4.14 security release.



Additionally, Django's vendored version of six, :mod:`django.utils.six`, has

been upgraded to the latest release (1.8.0).



Bugfixes

========



* Fixed a regression with dynamically generated inlines and allowed field

  references in the admin

  (`#23754 <http://code.djangoproject.com/ticket/23754>`_).

tests/regressiontests/admin_views/admin.py

+3 −2
Original line number Diff line number Diff line
@@ -28,7 +28,7 @@ from .models import (Article, Chapter, Account, Media, Child, Parent, Picture, 
    AdminOrderedField, AdminOrderedModelMethod, AdminOrderedAdminMethod,

    AdminOrderedCallable, Report, Color2, UnorderedObject, MainPrepopulated,

    RelatedPrepopulated, ReferencedByParent, ChildOfReferer, M2MReference,

    ReferencedByInline, InlineReference, InlineReferer, Ingredient)

    ReferencedByInline, InlineReference, InlineReferer, Recipe, Ingredient, NotReferenced)





def callable_year(dt_value):
@@ -627,7 +627,6 @@ site.register(MainPrepopulated, MainPrepopulatedAdmin) 
site.register(UnorderedObject, UnorderedObjectAdmin)

site.register(ReferencedByParent)

site.register(ChildOfReferer)

site.register(M2MReference)

site.register(ReferencedByInline)

site.register(InlineReferer, InlineRefererAdmin)
@@ -656,7 +655,9 @@ site.register(AdminOrderedModelMethod, AdminOrderedModelMethodAdmin) 
site.register(AdminOrderedAdminMethod, AdminOrderedAdminMethodAdmin)

site.register(AdminOrderedCallable, AdminOrderedCallableAdmin)

site.register(Color2, CustomTemplateFilterColorAdmin)

site.register(Recipe)

site.register(Ingredient)

site.register(NotReferenced)



# Register core models we need in our tests

from django.contrib.auth.models import User, Group

tests/regressiontests/admin_views/models.py

+17 −7
Original line number Diff line number Diff line
@@ -611,11 +611,13 @@ class UnorderedObject(models.Model): 


# Models for #23329

class ReferencedByParent(models.Model):

    pass

    name = models.CharField(max_length=20, unique=True)





class ParentWithFK(models.Model):

    fk = models.ForeignKey(ReferencedByParent)

    fk = models.ForeignKey(

        ReferencedByParent, to_field='name', related_name='hidden+',

    )





class ChildOfReferer(ParentWithFK):
@@ -625,13 +627,16 @@ class ChildOfReferer(ParentWithFK): 
class M2MReference(models.Model):

    ref = models.ManyToManyField('self')





# Models for #23431

class ReferencedByInline(models.Model):

    pass

    name = models.CharField(max_length=20, unique=True)





class InlineReference(models.Model):

    fk = models.ForeignKey(ReferencedByInline, related_name='hidden+')

    fk = models.ForeignKey(

        ReferencedByInline, to_field='name', related_name='hidden+',

    )





class InlineReferer(models.Model):
@@ -640,9 +645,14 @@ class InlineReferer(models.Model): 


# Models for #23604

class Recipe(models.Model):

    name = models.CharField(max_length=20)

    pass





class Ingredient(models.Model):

    name = models.CharField(max_length=20)

    recipes = models.ManyToManyField('Recipe', related_name='ingredients')
 
    recipes = models.ManyToManyField(Recipe)





# Model for #23839

class NotReferenced(models.Model):

    # Don't point any FK at this model.

    pass

tests/regressiontests/admin_views/tests.py

+10 −6
Original line number Diff line number Diff line
@@ -582,26 +582,30 @@ class AdminViewBasicTest(TestCase): 
        with self.assertRaises(DisallowedModelAdminToField):

            response = self.client.get("/test_admin/admin/admin_views/section/", {TO_FIELD_VAR: 'name'})



        # Specifying a field referenced by another model should be allowed.

        response = self.client.get("/test_admin/admin/admin_views/section/", {TO_FIELD_VAR: 'id'})

        # #23839 - Primary key should always be allowed, even if the referenced model isn't registered.

        response = self.client.get("/test_admin/admin/admin_views/notreferenced/", {TO_FIELD_VAR: 'id'})

        self.assertEqual(response.status_code, 200)



        # Specifying a field referenced by another model though a m2m should be allowed.

        response = self.client.get("/test_admin/admin/admin_views/m2mreference/", {TO_FIELD_VAR: 'id'})

        # XXX: We're not testing against a non-primary key field since the admin doesn't

        # support it yet, ref #23862

        response = self.client.get("/test_admin/admin/admin_views/recipe/", {TO_FIELD_VAR: 'id'})

        self.assertEqual(response.status_code, 200)



        # #23604 - Specifying the pk of this model should be allowed when this model defines a m2m relationship

        # #23604 - Specifying a field referenced through a reverse m2m relationship should be allowed.

        # XXX: We're not testing against a non-primary key field since the admin doesn't

        # support it yet, ref #23862

        response = self.client.get("/test_admin/admin/admin_views/ingredient/", {TO_FIELD_VAR: 'id'})

        self.assertEqual(response.status_code, 200)



        # #23329 - Specifying a field that is not refered by any other model directly registered

        # to this admin site but registered through inheritance should be allowed.

        response = self.client.get("/test_admin/admin/admin_views/referencedbyparent/", {TO_FIELD_VAR: 'id'})

        response = self.client.get("/test_admin/admin/admin_views/referencedbyparent/", {TO_FIELD_VAR: 'name'})

        self.assertEqual(response.status_code, 200)



        # #23431 - Specifying a field that is only refered to by a inline of a registered

        # model should be allowed.

        response = self.client.get("/test_admin/admin/admin_views/referencedbyinline/", {TO_FIELD_VAR: 'id'})

        response = self.client.get("/test_admin/admin/admin_views/referencedbyinline/", {TO_FIELD_VAR: 'name'})

        self.assertEqual(response.status_code, 200)



    def test_allowed_filtering_15103(self):