{dev bugfix} bugfix on update of user and application

app/helper/decorators.py

@@ -115,7 +115,7 @@ class rms:
                 )
             is_excel_code_exist = self.queryset.filter(
                 excel_code=payload['excel_code']
-            )
+            ).exclude(code=self.kwargs['code'])
             if is_excel_code_exist:
                 return error_message(
                     '400', "This excel code is already exists",
@@ -130,7 +130,15 @@ class rms:
         @wraps(function)
         def wrapper(self, request, *args, **kwargs):
             payload = request.data
-            username = self.queryset.filter(username=payload['username'])
+            if request.method == 'POST':
+                username = self.queryset.filter(
+                    username=payload['username']
+                )
+            else:
+                username = self.queryset.filter(
+                    username=payload['username']
+                ).exclude(code=self.kwargs['code'])
+                username = username
             if username.count() >= 1:
                 return error_message(
                     '400',