fix(backend): 🐛 fix error when assigning favorite recipe

mealie/db/models/_model_utils.py

@@ -102,7 +102,7 @@ def auto_init(exclude: Union[set, list] = None):  # sourcery no-metrics
                         if len(val) > 0 and isinstance(val[0], dict):
                             val = [elem.get("id") for elem in val]
 
-                        instances = [relation_cls.get_ref(elem, session=session) for elem in val]
+                        instances = [x for x in [relation_cls.get_ref(elem, session=session) for elem in val] if x]
                         setattr(self, key, instances)
 
             return init(self, *args, **kwargs)

mealie/db/models/recipe/recipe.py

@@ -73,6 +73,9 @@ class RecipeModel(SqlAlchemyBase, BaseMixins):
     favorited_by_id = sa.Column(sa.Integer, sa.ForeignKey("users.id"))
     favorited_by = orm.relationship("User", back_populates="favorite_recipes")
 
+    class Config:
+        get_attr = "slug"
+
     @validates("name")
     def validate_name(self, key, name):
         assert name != ""

mealie/services/user/user_service.py

@@ -15,8 +15,6 @@ logger = get_logger(module=__name__)
 
 
 class UserService:
-    """"""
-
     def __init__(self, session: Session, acting_user: PrivateUser, background_tasks: BackgroundTasks = None) -> None:
         self.session = session or SessionLocal()
         self.acting_user = acting_user