fix scale and precision in decimal

ormar/fields/foreign_key.py

@@ -37,7 +37,7 @@ def ForeignKey(  # noqa CFQ002
     virtual: bool = False,
     onupdate: str = None,
     ondelete: str = None,
-) -> Type["ForeignKeyField"]:
+) -> Any:
     fk_string = to.Meta.tablename + "." + to.get_column_alias(to.Meta.pkname)
     to_field = to.Meta.model_fields[to.Meta.pkname]
     __type__ = (

ormar/fields/many_to_many.py

@@ -17,7 +17,7 @@ def ManyToMany(
     unique: bool = False,
     virtual: bool = False,
     **kwargs: Any
-) -> Type["ManyToManyField"]:
+) -> Any:
     to_field = to.Meta.model_fields[to.Meta.pkname]
     related_name = kwargs.pop("related_name", None)
     nullable = kwargs.pop("nullable", True)
@@ -50,7 +50,7 @@ def ManyToMany(
 class ManyToManyField(ForeignKeyField):
     through: Type["Model"]
 
-    if TYPE_CHECKING:  # noqa: C901; pragma nocover
+    if TYPE_CHECKING:  # noqa: C901; #pragma nocover
 
         @staticmethod
         async def add(item: "Model") -> None:

ormar/fields/model_fields.py

@@ -292,14 +292,14 @@ class Decimal(ModelFieldFactory, decimal.Decimal):
         kwargs["le"] = kwargs["maximum"]
 
         if kwargs.get("max_digits"):
-            kwargs["scale"] = kwargs["max_digits"]
-        elif kwargs.get("scale"):
-            kwargs["max_digits"] = kwargs["scale"]
+            kwargs["precision"] = kwargs["max_digits"]
+        elif kwargs.get("precision"):
+            kwargs["max_digits"] = kwargs["precision"]
 
         if kwargs.get("decimal_places"):
-            kwargs["precision"] = kwargs["decimal_places"]
-        elif kwargs.get("precision"):
-            kwargs["decimal_places"] = kwargs["precision"]
+            kwargs["scale"] = kwargs["decimal_places"]
+        elif kwargs.get("scale"):
+            kwargs["decimal_places"] = kwargs["scale"]
 
         return super().__new__(cls, **kwargs)