Fixed #11639, #13618 -- Added get_prepopulated_fields method to ModelAdmin and InlineModelAdmin to be able to handle prepopulated fields on a case-by-case basis. Thanks, leanmeandonothingmachine.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16069 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/admin_views/fixtures/admin-views-users.xml

@@ -88,6 +88,9 @@
         <field type="DateTimeField" name="date">2009-03-18 11:54:58</field>
         <field to="admin_views.section" name="section" rel="ManyToOneRel">1</field>
     </object>
-
-
-</django-objects>
+    <object pk="1" model="admin_views.prepopulatedpost">
+        <field type="TextField" name="title">A Long Title</field>
+        <field type="BooleanField" name="published">True</field>
+        <field type="SlugField" name="slug">a-long-title</field>
+    </object>
+</django-objects>

tests/regressiontests/admin_views/models.py

@@ -529,6 +529,51 @@ class LinkInline(admin.TabularInline):
     readonly_fields = ("posted",)
 
 
+class PrePopulatedPost(models.Model):
+    title = models.CharField(max_length=100)
+    published = models.BooleanField()
+    slug = models.SlugField()
+
+class PrePopulatedSubPost(models.Model):
+    post = models.ForeignKey(PrePopulatedPost)
+    subtitle = models.CharField(max_length=100)
+    subslug = models.SlugField()
+
+class SubPostInline(admin.TabularInline):
+    model = PrePopulatedSubPost
+
+    prepopulated_fields = {
+        'subslug' : ('subtitle',)
+    }
+
+    def get_readonly_fields(self, request, obj=None):
+        if obj and obj.published:
+            return ('subslug',)
+        return self.readonly_fields
+
+    def get_prepopulated_fields(self, request, obj=None):
+        if obj and obj.published:
+            return {}
+        return self.prepopulated_fields
+
+class PrePopulatedPostAdmin(admin.ModelAdmin):
+    list_display = ['title', 'slug']
+    prepopulated_fields = {
+        'slug' : ('title',)
+    }
+
+    inlines = [SubPostInline]
+
+    def get_readonly_fields(self, request, obj=None):
+        if obj and obj.published:
+            return ('slug',)
+        return self.readonly_fields
+
+    def get_prepopulated_fields(self, request, obj=None):
+        if obj and obj.published:
+            return {}
+        return self.prepopulated_fields
+
 class Post(models.Model):
     title = models.CharField(max_length=100, help_text="Some help text for the title (with unicode ŠĐĆŽćžšđ)")
     content = models.TextField(help_text="Some help text for the content (with unicode ŠĐĆŽćžšđ)")
@@ -818,3 +863,4 @@ admin.site.register(Topping)
 admin.site.register(Album, AlbumAdmin)
 admin.site.register(Question)
 admin.site.register(Answer)
+admin.site.register(PrePopulatedPost, PrePopulatedPostAdmin)

tests/regressiontests/admin_views/tests.py

@@ -2579,6 +2579,30 @@ class NeverCacheTests(TestCase):
         self.assertEqual(get_max_age(response), None)
 
 
+class PrePopulatedTest(TestCase):
+    fixtures = ['admin-views-users.xml']
+
+    def setUp(self):
+        self.client.login(username='super', password='secret')
+
+    def tearDown(self):
+        self.client.logout()
+
+    def test_prepopulated_on(self):
+        response = self.client.get('/test_admin/admin/admin_views/prepopulatedpost/add/')
+        self.assertEqual(response.status_code, 200)
+        self.assertContains(response, "id: '#id_slug',")
+        self.assertContains(response, "field['dependency_ids'].push('#id_title');")
+        self.assertContains(response, "id: '#id_prepopulatedsubpost_set-0-subslug',")
+
+    def test_prepopulated_off(self):
+        response = self.client.get('/test_admin/admin/admin_views/prepopulatedpost/1/')
+        self.assertEqual(response.status_code, 200)
+        self.assertContains(response, "A Long Title")
+        self.assertNotContains(response, "id: '#id_slug'")
+        self.assertNotContains(response, "field['dependency_ids'].push('#id_title');")
+        self.assertNotContains(response, "id: '#id_prepopulatedsubpost_set-0-subslug',")
+
 class ReadonlyTest(TestCase):
     fixtures = ['admin-views-users.xml']