clean code for save and submit

app/applicationlayer/cms/template/views.py

@@ -285,7 +285,15 @@ class ChangeRequestTemplatesViewset(meviewsets.ModelViewSet):
                 template_no
             )
 
-            return Response(serializer.data)
+            serializer = self.get_serializer(instance)
+
+            message = status_message_response(
+                200, 'success',
+                'Change Request Template successfully updated',
+                serializer.data
+            )
+
+            return Response(message, status=status.HTTP_200_OK)
 
         return Response(
             "Unable to edit due to existing transaction",

app/applicationlayer/cms/utils_cr.py

@@ -427,4 +427,24 @@ def crhistory_save(batch_no, main_action,
             toValue=toValue
         )
     
-    return True
\ No newline at end of file
+    return True
+
+
+def crhistory_log_bulk_delete(queryset, entity, tbl, form_code,
+                              batch_no, main_action):
+    try:
+        # print(entity)
+        for data in queryset:
+            test = model_to_dict(data)
+            crhistory_save(batch_no,
+                           main_action,
+                           enums.CREnum.DELETED.value,
+                           entity,
+                           form_code,
+                           test,
+                           '')
+            
+            tbl.objects.filter(id=test['id']).delete()
+        return True
+    except IntegrityError as exc:
+        raise APIException(detail=exc)
\ No newline at end of file

app/businesslayer/changerequest/change_request.py

@@ -13,6 +13,14 @@ from django.http import Http404
 
 from django.db.models import Q
 
+from app.applicationlayer.cms.utils_cr import (
+    number_generator, crhistory_save, entity_log_bulk, crhistory_log_bulk_delete
+)
+from django.forms.models import model_to_dict
+from app.entities import enums, models
+from app.applicationlayer.utils import log_save, CustomPagination
+from app.applicationlayer.cms.template import serializers
+
 
 def list_by_user(user_id_number):
 
@@ -242,3 +250,78 @@ def filter_awaiting(base_queryset,
         pass
 
     return return_queryset
+
+
+def form_add_edit_delete(form_request_body,
+                         queryset,
+                         entity,
+                         serializer_data,
+                         partial,
+                         self,
+                         form_code,
+                         batch_no,
+                         main_action):
+    
+    # delete ids not in request body
+    request_ids = [i['id'] for i in form_request_body if "id" in i]
+
+    delete_query = queryset.objects.filter(
+        form_code=form_code
+    ).exclude(
+        id__in=request_ids
+    )
+
+    if delete_query.count() > 0:
+        crhistory_log_bulk_delete(delete_query,
+                                  entity,
+                                  queryset,
+                                  form_code,
+                                  batch_no,
+                                  main_action
+        )
+
+    # update or create
+    for i in form_request_body:
+        if "id" in i:
+            frm_instance = queryset.objects.get(
+                pk=i['id']
+            )
+
+            serializer = serializer_data(frm_instance,
+                                         data=i,
+                                         partial=partial)
+
+            serializer.is_valid(raise_exception=True)
+            old_instance = model_to_dict(frm_instance)
+            
+            self.perform_update(serializer)
+            new_instance = serializer.data
+            
+            crhistory_save(
+                batch_no,
+                main_action,
+                enums.CREnum.UPDATE.value,
+                entity,
+                form_code,
+                old_instance,
+                new_instance
+            )
+
+        else:
+            serializer = serializer_data(data=i)
+            serializer.is_valid(raise_exception=True)
+
+            self.perform_create(serializer)
+            new_instance = serializer.data
+            
+            crhistory_save(
+                batch_no,
+                main_action,
+                enums.CREnum.ADD.value,
+                entity,
+                form_code,
+                None,
+                new_instance
+            )
+
+    return True
\ No newline at end of file