cleaning and linting

ormar/models/modelproxy.py

@@ -182,7 +182,7 @@ class ModelTableProxy:
     @classmethod
     def merge_instances_list(cls, result_rows: Sequence["Model"]) -> Sequence["Model"]:
         merged_rows: List["Model"] = []
-        grouped_instances = OrderedDict()
+        grouped_instances: OrderedDict = OrderedDict()
 
         for model in result_rows:
             grouped_instances.setdefault(model.pk, []).append(model)

ormar/queryset/join.py

@@ -1,4 +1,5 @@
-from typing import Dict, List, NamedTuple, TYPE_CHECKING, Tuple, Type
+from collections import OrderedDict
+from typing import List, NamedTuple, Optional, TYPE_CHECKING, Tuple, Type
 
 import sqlalchemy
 from sqlalchemy import text
@@ -24,8 +25,8 @@ class SqlJoin:
         select_from: sqlalchemy.sql.select,
         columns: List[sqlalchemy.Column],
         fields: List,
-        order_columns: List,
-        sorted_orders: Dict,
+        order_columns: Optional[List],
+        sorted_orders: OrderedDict,
     ) -> None:
         self.used_aliases = used_aliases
         self.select_from = select_from
@@ -48,7 +49,7 @@ class SqlJoin:
 
     def build_join(
         self, item: str, join_parameters: JoinParameters
-    ) -> Tuple[List, sqlalchemy.sql.select, List, Dict]:
+    ) -> Tuple[List, sqlalchemy.sql.select, List, OrderedDict]:
         for part in item.split("__"):
             if issubclass(
                 join_parameters.model_cls.Meta.model_fields[part], ManyToManyField
@@ -147,7 +148,7 @@ class SqlJoin:
             condition[-2] == part or condition[-2][1:] == part
         )
 
-    def get_order_bys(
+    def get_order_bys(  # noqa: CCR001
         self, alias: str, to_table: str, pkname_alias: str, part: str
     ) -> None:
         if self.order_columns:

ormar/queryset/query.py

@@ -39,19 +39,20 @@ class Query:
         self.select_from: List[str] = []
         self.columns = [sqlalchemy.Column]
         self.order_columns = order_bys
-        self.sorted_orders = OrderedDict()
+        self.sorted_orders: OrderedDict = OrderedDict()
         self._init_sorted_orders()
 
     def _init_sorted_orders(self) -> None:
-        for clause in self.order_columns:
-            self.sorted_orders[clause] = None
+        if self.order_columns:
+            for clause in self.order_columns:
+                self.sorted_orders[clause] = None
 
     @property
     def prefixed_pk_name(self) -> str:
         pkname_alias = self.model_cls.get_column_alias(self.model_cls.Meta.pkname)
         return f"{self.table.name}.{pkname_alias}"
 
-    def apply_order_bys_for_primary_model(self) -> None:
+    def apply_order_bys_for_primary_model(self) -> None:  # noqa: CCR001
         if self.order_columns:
             for clause in self.order_columns:
                 if "__" not in clause:
@@ -123,6 +124,5 @@ class Query:
     def _reset_query_parameters(self) -> None:
         self.select_from = []
         self.columns = []
-        self.order_bys = []
         self.used_aliases = []
         self.fields = []