Restrict a requestor to submit a CR without atleast 1 approver v3

app/applicationlayer/cms/form/header/views.py

@@ -1195,6 +1195,17 @@ class ChangeRequestFormPost(APIView):
                 return Response(message,
                                 status=status.HTTP_400_BAD_REQUEST)
             
+            # Restrict a requestor to submit a CR without atleast 1 approver
+            counter = change_request.validation_existing_approver(frm_approvers)
+            
+            if form_header['status'].lower() == 'pending' and counter == 0:
+                message = {
+                    'code': 400,
+                    'status': 'failed',
+                    'message': 'Please select at least 1 approver before submitting this request.',
+                }
+                return Response(message, status=status.HTTP_400_BAD_REQUEST)
+            
             data_list_approver = []
             data_list_stake = []
             data_list_attach = []
@@ -1241,7 +1252,6 @@ class ChangeRequestFormPost(APIView):
 
             # create form approvers
             frm_approvers = form_header['frm_approvers']
-            counter = 0
             for frm_approver in frm_approvers:
                 frm_approver['form_code'] = frm_id
                 data_list_approver.append(frm_approver)

app/businesslayer/changerequest/change_request.py

@@ -767,6 +767,16 @@ def cr_routing_actions(approver_instance, current_user, move_to_level):
         
     return True
 
+
+def validation_existing_approver(approvers):
+    counter = 0
+    for approver in approvers:
+        # count all delegation not equal to Requestor and Vendor
+        if approver['delegation'] not in ['DELEGATION-20191119-0000002', 'DELEGATION-20191119-0000001']:
+            counter = counter + 1
+            return counter
+    
+    return counter