Corrected messages of admin checks for invalid model field names.

django/contrib/admin/checks.py

@@ -1129,8 +1129,8 @@ def must_inherit_from(parent, option, obj, id):
 def refer_to_missing_field(field, option, obj, id):
     return [
         checks.Error(
-            "The value of '%s' refers to '%s', which is not an attribute of "
-            "'%s'." % (option, field, obj.model._meta.label),
+            "The value of '%s' refers to '%s', which is not a field of '%s'."
+            % (option, field, obj.model._meta.label),
             obj=obj.__class__,
             id=id,
         ),

docs/ref/checks.txt

@@ -594,7 +594,7 @@ with the admin site:
 
 * **admin.E001**: The value of ``raw_id_fields`` must be a list or tuple.
 * **admin.E002**: The value of ``raw_id_fields[n]`` refers to ``<field name>``,
-  which is not an attribute of ``<model>``.
+  which is not a field of ``<model>``.
 * **admin.E003**: The value of ``raw_id_fields[n]`` must be a foreign key or
   a many-to-many field.
 * **admin.E004**: The value of ``fields`` must be a list or tuple.
@@ -616,12 +616,12 @@ with the admin site:
 * **admin.E017**: The value of ``filter_vertical`` must be a list or tuple.
 * **admin.E018**: The value of ``filter_horizontal`` must be a list or tuple.
 * **admin.E019**: The value of ``filter_vertical[n]/filter_horizontal[n]``
-  refers to ``<field name>``, which is not an attribute of ``<model>``.
+  refers to ``<field name>``, which is not a field of ``<model>``.
 * **admin.E020**: The value of ``filter_vertical[n]/filter_horizontal[n]``
   must be a many-to-many field.
 * **admin.E021**: The value of ``radio_fields`` must be a dictionary.
 * **admin.E022**: The value of ``radio_fields`` refers to ``<field name>``,
-  which is not an attribute of ``<model>``.
+  which is not a field of ``<model>``.
 * **admin.E023**: The value of ``radio_fields`` refers to ``<field name>``,
   which is not instance of ``ForeignKey``, and does not have a ``choices``
   definition.
@@ -631,25 +631,25 @@ with the admin site:
   boolean value.
 * **admin.E026**: The value of ``prepopulated_fields`` must be a dictionary.
 * **admin.E027**: The value of ``prepopulated_fields`` refers to
-  ``<field name>``, which is not an attribute of ``<model>``.
+  ``<field name>``, which is not a field of ``<model>``.
 * **admin.E028**: The value of ``prepopulated_fields`` refers to
   ``<field name>``, which must not be a ``DateTimeField``, a ``ForeignKey``,
   a ``OneToOneField``, or a ``ManyToManyField`` field.
 * **admin.E029**: The value of ``prepopulated_fields[<field name>]`` must be a
   list or tuple.
 * **admin.E030**: The value of ``prepopulated_fields`` refers to
-  ``<field name>``, which is not an attribute of ``<model>``.
+  ``<field name>``, which is not a field of ``<model>``.
 * **admin.E031**: The value of ``ordering`` must be a list or tuple.
 * **admin.E032**: The value of ``ordering`` has the random ordering marker
   ``?``, but contains other fields as well.
 * **admin.E033**: The value of ``ordering`` refers to ``<field name>``, which
-  is not an attribute of ``<model>``.
+  is not a field of ``<model>``.
 * **admin.E034**: The value of ``readonly_fields`` must be a list or tuple.
 * **admin.E035**: The value of ``readonly_fields[n]`` is not a callable, an
   attribute of ``<ModelAdmin class>``, or an attribute of ``<model>``.
 * **admin.E036**: The value of ``autocomplete_fields`` must be a list or tuple.
 * **admin.E037**: The value of ``autocomplete_fields[n]`` refers to
-  ``<field name>``, which is not an attribute of ``<model>``.
+  ``<field name>``, which is not a field of ``<model>``.
 * **admin.E038**: The value of ``autocomplete_fields[n]`` must be a foreign
   key or a many-to-many field.
 * **admin.E039**: An admin for model ``<model>`` has to be registered to be
@@ -697,7 +697,7 @@ with the admin site:
 * **admin.E119**: The value of ``list_max_show_all`` must be an integer.
 * **admin.E120**: The value of ``list_editable`` must be a list or tuple.
 * **admin.E121**: The value of ``list_editable[n]`` refers to ``<label>``,
-  which is not an attribute of ``<model>``.
+  which is not a field of ``<model>``.
 * **admin.E122**: The value of ``list_editable[n]`` refers to ``<label>``,
   which is not contained in ``list_display``.
 * **admin.E123**: The value of ``list_editable[n]`` cannot be in both

tests/admin_checks/tests.py

@@ -309,7 +309,7 @@ class SystemChecksTestCase(SimpleTestCase):
         self.assertEqual(SongAdmin(Song, AdminSite()).check(), [
             checks.Error(
                 "The value of 'list_editable[0]' refers to 'test', which is "
-                "not an attribute of 'admin_checks.Song'.",
+                "not a field of 'admin_checks.Song'.",
                 obj=SongAdmin,
                 id='admin.E121',
             )
@@ -618,7 +618,7 @@ class SystemChecksTestCase(SimpleTestCase):
         expected = [
             checks.Error(
                 "The value of 'raw_id_fields[0]' refers to 'nonexistent', "
-                "which is not an attribute of 'admin_checks.Album'.",
+                "which is not a field of 'admin_checks.Album'.",
                 obj=RawIdNonexistentAdmin,
                 id='admin.E002',
             )

tests/modeladmin/test_checks.py

@@ -63,7 +63,7 @@ class RawIdCheckTests(CheckTestCase):
         self.assertIsInvalid(
             TestModelAdmin, ValidationTestModel,
             "The value of 'raw_id_fields[0]' refers to 'non_existent_field', "
-            "which is not an attribute of 'modeladmin.ValidationTestModel'.",
+            "which is not a field of 'modeladmin.ValidationTestModel'.",
             'admin.E002'
         )
 
@@ -278,7 +278,7 @@ class FilterVerticalCheckTests(CheckTestCase):
         self.assertIsInvalid(
             TestModelAdmin, ValidationTestModel,
             "The value of 'filter_vertical[0]' refers to 'non_existent_field', "
-            "which is not an attribute of 'modeladmin.ValidationTestModel'.",
+            "which is not a field of 'modeladmin.ValidationTestModel'.",
             'admin.E019'
         )
 
@@ -318,7 +318,7 @@ class FilterHorizontalCheckTests(CheckTestCase):
         self.assertIsInvalid(
             TestModelAdmin, ValidationTestModel,
             "The value of 'filter_horizontal[0]' refers to 'non_existent_field', "
-            "which is not an attribute of 'modeladmin.ValidationTestModel'.",
+            "which is not a field of 'modeladmin.ValidationTestModel'.",
             'admin.E019'
         )
 
@@ -359,7 +359,7 @@ class RadioFieldsCheckTests(CheckTestCase):
         self.assertIsInvalid(
             TestModelAdmin, ValidationTestModel,
             "The value of 'radio_fields' refers to 'non_existent_field', "
-            "which is not an attribute of 'modeladmin.ValidationTestModel'.",
+            "which is not a field of 'modeladmin.ValidationTestModel'.",
             'admin.E022'
         )
 
@@ -421,7 +421,7 @@ class PrepopulatedFieldsCheckTests(CheckTestCase):
         self.assertIsInvalid(
             TestModelAdmin, ValidationTestModel,
             "The value of 'prepopulated_fields' refers to 'non_existent_field', "
-            "which is not an attribute of 'modeladmin.ValidationTestModel'.",
+            "which is not a field of 'modeladmin.ValidationTestModel'.",
             'admin.E027'
         )
 
@@ -432,7 +432,7 @@ class PrepopulatedFieldsCheckTests(CheckTestCase):
         self.assertIsInvalid(
             TestModelAdmin, ValidationTestModel,
             "The value of 'prepopulated_fields[\"slug\"][0]' refers to 'non_existent_field', "
-            "which is not an attribute of 'modeladmin.ValidationTestModel'.",
+            "which is not a field of 'modeladmin.ValidationTestModel'.",
             'admin.E030'
         )
 
@@ -873,7 +873,7 @@ class OrderingCheckTests(CheckTestCase):
         self.assertIsInvalid(
             TestModelAdmin, ValidationTestModel,
             "The value of 'ordering[0]' refers to 'non_existent_field', "
-            "which is not an attribute of 'modeladmin.ValidationTestModel'.",
+            "which is not a field of 'modeladmin.ValidationTestModel'.",
             'admin.E033'
         )
 
@@ -914,7 +914,7 @@ class OrderingCheckTests(CheckTestCase):
         self.assertIsInvalid(
             TestModelAdmin, ValidationTestModel,
             "The value of 'ordering[0]' refers to 'nonexistent', which is not "
-            "an attribute of 'modeladmin.ValidationTestModel'.",
+            "a field of 'modeladmin.ValidationTestModel'.",
             'admin.E033'
         )
 
@@ -1342,7 +1342,7 @@ class AutocompleteFieldsTests(CheckTestCase):
             Admin, ValidationTestModel,
             msg=(
                 "The value of 'autocomplete_fields[0]' refers to 'nonexistent', "
-                "which is not an attribute of 'modeladmin.ValidationTestModel'."
+                "which is not a field of 'modeladmin.ValidationTestModel'."
             ),
             id='admin.E037',
             invalid_obj=Admin,