change user_name still used as login and add display_name for dashboard view instead of username on login

backend/apps/accounts/serializers.py

@@ -19,19 +19,19 @@ class UserSerializer(PkAsIdMixin, serializers.ModelSerializer):
         required=False,
     )
     managed_by_name = serializers.CharField(
-        source="managed_by.user_name", read_only=True, allow_null=True
+        source="managed_by.display_name", read_only=True, allow_null=True
     )
     managed_by_pending = serializers.PrimaryKeyRelatedField(read_only=True)
     managed_by_pending_name = serializers.CharField(
-        source="managed_by_pending.user_name", read_only=True, allow_null=True
+        source="managed_by_pending.display_name", read_only=True, allow_null=True
     )
 
     class Meta:
         model = User
         fields = [
             "id",
-            "user_login",
             "user_name",
+            "display_name",
             "status",
             "is_superuser",
             "managed_by",
@@ -64,19 +64,19 @@ class UserWriteSerializer(PkAsIdMixin, serializers.ModelSerializer):
         required=False,
     )
     managed_by_name = serializers.CharField(
-        source="managed_by.user_name", read_only=True, allow_null=True
+        source="managed_by.display_name", read_only=True, allow_null=True
     )
     managed_by_pending = serializers.PrimaryKeyRelatedField(read_only=True)
     managed_by_pending_name = serializers.CharField(
-        source="managed_by_pending.user_name", read_only=True, allow_null=True
+        source="managed_by_pending.display_name", read_only=True, allow_null=True
     )
 
     class Meta:
         model = User
         fields = [
             "id",
-            "user_login",
             "user_name",
+            "display_name",
             "status",
             "is_superuser",
             "password",
@@ -136,9 +136,9 @@ class UserWriteSerializer(PkAsIdMixin, serializers.ModelSerializer):
 
     def create(self, validated_data):
         password = validated_data.pop("password")
-        user_login = validated_data.pop("user_login")
+        user_name = validated_data.pop("user_name")
         return User.objects.create_user(
-            user_login=user_login, password=password, **validated_data
+            user_name=user_name, password=password, **validated_data
         )
 
     def update(self, instance, validated_data):
@@ -161,7 +161,7 @@ class SetPasswordSerializer(serializers.Serializer):
 
 
 class LoginSerializer(serializers.Serializer):
-    user_login = serializers.CharField(max_length=30)
+    user_name = serializers.CharField(max_length=30)
     password = serializers.CharField(write_only=True)