fix parsing related models from dictionaries

orm/fields.py

@@ -193,6 +193,8 @@ class ForeignKey(BaseField):
     def expand_relationship(self, value, child):
         if isinstance(value, self.to):
             model = value
+        elif isinstance(value, dict):
+            model = self.to(**value)
         else:
             model = self.to(**{self.to.__pkname__: value})
 

orm/models.py

@@ -315,7 +315,7 @@ class Model(tuple, metaclass=ModelMetaclass):
 
     objects = QuerySet()
 
-    def __init__(self, **kwargs) -> None:
+    def __init__(self, *args, **kwargs) -> None:
         self._orm_id = uuid.uuid4().hex
         self._orm_saved = False
         self._orm_relationship_manager = RelationshipManager(self)

tests/test_fastapi_usage.py

@@ -16,6 +16,15 @@ database = databases.Database(DATABASE_URL, force_rollback=True)
 metadata = sqlalchemy.MetaData()
 
 
+class Category(orm.Model):
+    __tablename__ = "cateries"
+    __metadata__ = metadata
+    __database__ = database
+
+    id = orm.Integer(primary_key=True)
+    name = orm.String(length=100)
+
+
 class Item(orm.Model):
     __tablename__ = "users"
     __metadata__ = metadata
@@ -23,6 +32,7 @@ class Item(orm.Model):
 
     id = orm.Integer(primary_key=True)
     name = orm.String(length=100)
+    category = orm.ForeignKey(Category, nullable=True)
 
 
 @app.post("/items/", response_model=Item)
@@ -34,9 +44,8 @@ client = TestClient(app)
 
 
 def test_read_main():
-    response = client.post("/items/", json={'name': 'test', 'id': 1})
-    print(response.json())
+    response = client.post("/items/", json={'name': 'test', 'id': 1, 'category': {'name': 'test cat'}})
     assert response.status_code == 200
-    assert response.json() == {'name': 'test', 'id': 1}
+    assert response.json() == {'category': {'id': None, 'name': 'test cat'}, 'id': 1, 'name': 'test'}
     item = Item(**response.json())
     assert item.id == 1