remove reference to mypy.ini in github workflow, fix some code smells

.github/workflows/test-package.yml

@@ -66,7 +66,7 @@ jobs:
       env:
         DATABASE_URL: "sqlite:///testsuite"
       run: bash scripts/test.sh
-    - run: mypy --config-file mypy.ini ormar tests
+    - run: mypy ormar tests
     - name: Upload coverage
       uses: codecov/codecov-action@v1
     - name: Test & publish code coverage

ormar/queryset/prefetch_query.py

@@ -30,11 +30,11 @@ def sort_models(models: List["Model"], orders_by: Dict) -> List["Model"]:
     ]
     sort_criteria = sort_criteria[::-1]
     for criteria in sort_criteria:
-        key, value = criteria
+        key_name, value = criteria
         if value == "desc":
-            models.sort(key=lambda x: getattr(x, key), reverse=True)
+            models.sort(key=lambda x: getattr(x, key_name), reverse=True)
         else:
-            models.sort(key=lambda x: getattr(x, key))
+            models.sort(key=lambda x: getattr(x, key_name))
     return models
 
 

ormar/queryset/utils.py

@@ -214,7 +214,8 @@ def extract_nested_models(  # noqa: CCR001
     follow = [rel for rel in model_type.extract_related_names() if rel in select_dict]
     for related in follow:
         child = getattr(model, related)
-        if child:
+        if not child:
+            continue
         target_model = model_type.Meta.model_fields[related].to
         if isinstance(child, list):
             extracted.setdefault(target_model.get_name(), []).extend(child)

ormar/relations/querysetproxy.py

@@ -43,7 +43,7 @@ class QuerysetProxy(Generic[T]):
         type_: "RelationType",
         qryset: "QuerySet[T]" = None,
     ) -> None:
-        self.relation: Relation = relation
+        self.relation: "Relation" = relation
         self._queryset: Optional["QuerySet[T]"] = qryset
         self.type_: "RelationType" = type_
         self._owner: Union[CallableProxyType, "Model"] = self.relation.manager.owner