Mark complex sub-attributes URNs at model definition

[Éloi Rivard]

Currently, complex sub-attributes are given a private URN on model validation.

scim2-models/scim2_models/base.py

Lines 518 to 523 in d32a5c2

     def mark_with_schema(self): 
         """Navigate through attributes and subattributes of type 
         ComplexAttribute, and mark them with a '_schema' attribute. 
  
         '_schema' will later be used by 'get_attribute_urn'. 
         """ 

Those URNs are used later in model validation:

scim2-models/scim2_models/base.py

Lines 595 to 600 in d32a5c2

     def scim_response_serializer(self, value: Any, info: SerializationInfo) -> Any: 
         """Serialize the fields according to returability indications passed in 
         the serialization context.""" 
  
         returnability = self.get_field_annotation(info.field_name, Returned) 
         attribute_urn = self.get_attribute_urn(info.field_name) 

We should investigate how to mark URNs at model definition instead, for example by using things like __set_name__?

[Éloi Rivard]

Fixed by #48