fix many_to_many lazy registration in fastapi cloned models, fixed ForeignKey not treated as subclasses of BaseModels in json schema

ormar/relations/relation_manager.py

@@ -17,9 +17,9 @@ if TYPE_CHECKING:  # pragma no cover
 
 class RelationsManager:
     def __init__(
-        self,
-        related_fields: List[Type[ForeignKeyField]] = None,
-        owner: "NewBaseModel" = None,
+            self,
+            related_fields: List[Type[ForeignKeyField]] = None,
+            owner: "NewBaseModel" = None,
     ) -> None:
         self.owner = proxy(owner)
         self._related_fields = related_fields or []
@@ -40,6 +40,8 @@ class RelationsManager:
             to=field.to,
             through=getattr(field, "through", None),
         )
+        if field.name not in self._related_names:
+            self._related_names.append(field.name)
 
     def __contains__(self, item: str) -> bool:
         return item in self._related_names
@@ -74,7 +76,7 @@ class RelationsManager:
             child_relation.add(parent)
 
     def remove(
-        self, name: str, child: Union["NewBaseModel", Type["NewBaseModel"]]
+            self, name: str, child: Union["NewBaseModel", Type["NewBaseModel"]]
     ) -> None:
         relation = self._get(name)
         if relation:
@@ -82,7 +84,7 @@ class RelationsManager:
 
     @staticmethod
     def remove_parent(
-        item: Union["NewBaseModel", Type["NewBaseModel"]], name: "Model"
+            item: Union["NewBaseModel", Type["NewBaseModel"]], name: "Model"
     ) -> None:
         related_model = name
         rel_name = item.resolve_relation_name(item, related_model)

ormar/relations/relation_proxy.py

@@ -6,7 +6,7 @@ from ormar.relations.querysetproxy import QuerysetProxy
 
 if TYPE_CHECKING:  # pragma no cover
     from ormar import Model
-    from ormar.relations import Relation
+    from ormar.relations import Relation, register_missing_relation
     from ormar.queryset import QuerySet
 
 
@@ -33,8 +33,8 @@ class RelationProxy(list):
 
     def _check_if_queryset_is_initialized(self) -> bool:
         return (
-            hasattr(self.queryset_proxy, "queryset")
-            and self.queryset_proxy.queryset is not None
+                hasattr(self.queryset_proxy, "queryset")
+                and self.queryset_proxy.queryset is not None
         )
 
     def _set_queryset(self) -> "QuerySet":
@@ -48,8 +48,8 @@ class RelationProxy(list):
         kwargs = {f"{owner_table}__{pkname}": pk_value}
         queryset = (
             ormar.QuerySet(model_cls=self.relation.to)
-            .select_related(owner_table)
-            .filter(**kwargs)
+                .select_related(owner_table)
+                .filter(**kwargs)
         )
         return queryset
 
@@ -72,4 +72,6 @@ class RelationProxy(list):
         if self.relation._type == ormar.RelationType.MULTIPLE:
             await self.queryset_proxy.create_through_instance(item)
         rel_name = item.resolve_relation_name(item, self._owner)
+        if not rel_name in item._orm:
+            item._orm._add_relation(item.Meta.model_fields[rel_name])
         setattr(item, rel_name, self._owner)