Handle case where serializer does not have 'Meta' class (#7360)

src/backend/InvenTree/InvenTree/metadata.py

@@ -147,14 +147,15 @@ class InvenTreeMetadata(SimpleMetadata):
         serializer_info = super().get_serializer_info(serializer)
 
         # Look for any dynamic fields which were not available when the serializer was instantiated
-        for field_name in serializer.Meta.fields:
-            if field_name in serializer_info:
-                # Already know about this one
-                continue
+        if hasattr(serializer, 'Meta'):
+            for field_name in serializer.Meta.fields:
+                if field_name in serializer_info:
+                    # Already know about this one
+                    continue
 
-            if hasattr(serializer, field_name):
-                field = getattr(serializer, field_name)
-                serializer_info[field_name] = self.get_field_info(field)
+                if hasattr(serializer, field_name):
+                    field = getattr(serializer, field_name)
+                    serializer_info[field_name] = self.get_field_info(field)
 
         model_class = None
 

src/backend/InvenTree/plugin/serializers.py

@@ -150,6 +150,11 @@ class PluginConfigEmptySerializer(serializers.Serializer):
 class PluginReloadSerializer(serializers.Serializer):
     """Serializer for remotely forcing plugin registry reload."""
 
+    class Meta:
+        """Meta for serializer."""
+
+        fields = ['full_reload', 'force_reload', 'collect_plugins']
+
     full_reload = serializers.BooleanField(
         required=False,
         default=False,
@@ -189,6 +194,11 @@ class PluginActivateSerializer(serializers.Serializer):
 
     model = PluginConfig
 
+    class Meta:
+        """Metaclass for serializer."""
+
+        fields = ['active']
+
     active = serializers.BooleanField(
         required=False,
         default=True,
@@ -213,6 +223,11 @@ class PluginActivateSerializer(serializers.Serializer):
 class PluginUninstallSerializer(serializers.Serializer):
     """Serializer for uninstalling a plugin."""
 
+    class Meta:
+        """Metaclass for serializer."""
+
+        fields = ['delete_config']
+
     delete_config = serializers.BooleanField(
         required=False,
         default=True,
@@ -253,6 +268,11 @@ class NotificationUserSettingSerializer(GenericReferencedSettingSerializer):
 class PluginRegistryErrorSerializer(serializers.Serializer):
     """Serializer for a plugin registry error."""
 
+    class Meta:
+        """Meta for serializer."""
+
+        fields = ['stage', 'name', 'message']
+
     stage = serializers.CharField()
     name = serializers.CharField()
     message = serializers.CharField()