Fixed #12481: Updated admin validation code to not reject non-editable fields in readonly_fields, since these are handled fine by the display code itself. Thanks lashni and Alex.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@12730 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/admin_validation/tests.py

@@ -0,0 +1,18 @@
+from django.contrib import admin
+from django.contrib.admin.validation import validate
+from django.test import TestCase
+
+from models import Song
+
+
+class ValidationTestCase(TestCase):
+    def test_readonly_and_editable(self):
+        class SongAdmin(admin.ModelAdmin):
+            readonly_fields = ["original_release"]
+            fieldsets = [
+                (None, {
+                    "fields": ["title", "original_release"],
+                }),
+            ]
+        
+        validate(SongAdmin, Song)