refactor(pydantic_changedetect): #46 📦 Remove usage of last self.model_fields, use clkass property instead

Author: ddanier

pydantic_changedetect/changedetect.py

@@ -90,7 +90,7 @@ def model_changed_fields(self) -> set[str]:
         """Return list of all changed fields, submodels are considered as one field"""
 
         changed_fields = self.model_self_changed_fields.copy()
-        for field_name, model_field in self.model_fields.items():
+        for field_name, model_field in self.__class__.model_fields.items():
             # Support for instances created through model_construct, when not all fields have been defined
             if field_name not in self.__dict__:
                 continue
@@ -137,7 +137,7 @@ def model_changed_fields_recursive(self) -> set[str]:
         """Return a list of all changed fields recursive using dotted syntax"""
 
         changed_fields = self.model_self_changed_fields.copy()
-        for field_name, model_field in self.model_fields.items():
+        for field_name, model_field in self.__class__.model_fields.items():
             field_value = self.__dict__[field_name]
 
             # Value is a ChangeDetectionMixin instance itself
@@ -258,15 +258,15 @@ def __setattr__(self, name, value) -> None:  # noqa: ANN001
 
         # Get original value
         original_update = {}
-        if name in self.model_fields and name not in self.model_original:
+        if name in self.__class__.model_fields and name not in self.model_original:
             original_update[name] = self.__dict__[name]
 
         # Store changed value using pydantic
         super().__setattr__(name, value)
 
         # Check if value has actually been changed
         has_changed = True
-        if name in self.model_fields:
+        if name in self.__class__.model_fields:
             # Fetch original from original_update so we don't have to check everything again
             original_value = original_update.get(name, None)
             # Don't use value parameter directly, as pydantic validation might have changed it