Skip non-editable (manually set) deadlines on update_deadlines

Author: HenryVisuri

projects/models/project.py

@@ -520,9 +520,10 @@ def _set_calculated_deadline(self, deadline, date, user, preview, preview_attrib
             preview_attribute_data = {}
         if confirmed_fields is None:
             confirmed_fields = {}
-        
+
         if not date:
             return None
+
         try:
             if preview:
                 try:
@@ -571,9 +572,12 @@ def _set_calculated_deadline(self, deadline, date, user, preview, preview_attrib
                 preview_attribute_data if preview else None,
             )
 
-            if preview or not project_deadline.editable:
+            if preview:
                 return enforced_date
 
+            if not project_deadline.editable:
+                return None
+
             if project_deadline.date != enforced_date:
                 project_deadline.date = enforced_date
                 project_deadline.save()

projects/serializers/section.py

@@ -117,6 +117,11 @@ def validate(value):
                 vis_bool = get_dl_vis_bool_name(attr_dl.deadlinegroup)
                 if vis_bool and preview.get(vis_bool) is False:
                     continue
+
+            # Skip validation for deadlines that are not editable
+            if attr_dl.editable is False:
+                continue
+
             # validate datetype
             try:
                 assert attr_dl.date_type.is_valid_date(value)