Move Meta class to top of class definition (#4363)

InvenTree/users/models.py

@@ -562,6 +562,14 @@ class Owner(models.Model):
     owner: Returns the Group or User instance combining the owner_type and owner_id fields
     """
 
+    class Meta:
+        """Metaclass defines extra model properties"""
+        # Ensure all owners are unique
+        constraints = [
+            UniqueConstraint(fields=['owner_type', 'owner_id'],
+                             name='unique_owner')
+        ]
+
     @classmethod
     def get_owners_matching_user(cls, user):
         """Return all "owner" objects matching the provided user.
@@ -594,14 +602,6 @@ class Owner(models.Model):
         """Returns the API endpoint URL associated with the Owner model"""
         return reverse('api-owner-list')
 
-    class Meta:
-        """Metaclass defines extra model properties"""
-        # Ensure all owners are unique
-        constraints = [
-            UniqueConstraint(fields=['owner_type', 'owner_id'],
-                             name='unique_owner')
-        ]
-
     owner_type = models.ForeignKey(ContentType, on_delete=models.CASCADE, null=True, blank=True)
 
     owner_id = models.PositiveIntegerField(null=True, blank=True)

InvenTree/users/serializers.py

@@ -12,10 +12,6 @@ from .models import Owner
 class OwnerSerializer(InvenTreeModelSerializer):
     """Serializer for an "Owner" (either a "user" or a "group")"""
 
-    name = serializers.CharField(read_only=True)
-
-    label = serializers.CharField(read_only=True)
-
     class Meta:
         """Metaclass defines serializer fields."""
         model = Owner
@@ -26,6 +22,10 @@ class OwnerSerializer(InvenTreeModelSerializer):
             'label',
         ]
 
+    name = serializers.CharField(read_only=True)
+
+    label = serializers.CharField(read_only=True)
+
 
 class GroupSerializer(InvenTreeModelSerializer):
     """Serializer for a 'Group'"""