Merge pull request #9899 from seiwailai/issue-9898-invalid-type-field

metadata: Fixes invalid model classes field.

Fixes #9441.
SUMMARY

Set type' field's filterable as True only if the model classes contain type field such as UnifiedJob, WorkflowApproval, UnifiedJobTemplate, Project and SystemJobTemplate

ISSUE TYPE


Bugfix Pull Request

COMPONENT NAME


API - metadata.py

AWX VERSION

awx: 19.0.0

ADDITIONAL INFORMATION

Reviewed-by: Shane McDonald <me@shanemcd.com>
Reviewed-by: Sei Wai Lai <None>

awx/api/metadata.py

@@ -26,6 +26,9 @@ from awx.main.fields import JSONField, ImplicitRoleField
 from awx.main.models import NotificationTemplate
 from awx.main.tasks import AWXReceptorJob
 
+# Polymorphic
+from polymorphic.models import PolymorphicModel
+
 
 class Metadata(metadata.SimpleMetadata):
     def get_field_info(self, field):
@@ -78,7 +81,9 @@ class Metadata(metadata.SimpleMetadata):
                 field_info['help_text'] = field_help_text[field.field_name].format(verbose_name)
 
             if field.field_name == 'type':
-                field_info['filterable'] = True
+                # Only include model classes with `type` field.
+                if issubclass(serializer.Meta.model, PolymorphicModel):
+                    field_info['filterable'] = True
             else:
                 for model_field in serializer.Meta.model._meta.fields:
                     if field.field_name == model_field.name: