added foreign_key_kwargs to Field

sqlmodel/main.py

@@ -61,6 +61,7 @@ def __init__(self, default: Any = Undefined, **kwargs: Any) -> None:
         primary_key = kwargs.pop("primary_key", False)
         nullable = kwargs.pop("nullable", Undefined)
         foreign_key = kwargs.pop("foreign_key", Undefined)
+        foreign_key_kwargs = kwargs.pop("foreign_key_kwargs", Undefined)
         unique = kwargs.pop("unique", False)
         index = kwargs.pop("index", Undefined)
         sa_column = kwargs.pop("sa_column", Undefined)
@@ -81,6 +82,7 @@ def __init__(self, default: Any = Undefined, **kwargs: Any) -> None:
         self.primary_key = primary_key
         self.nullable = nullable
         self.foreign_key = foreign_key
+        self.foreign_key_kwargs = foreign_key_kwargs
         self.unique = unique
         self.index = index
         self.sa_column = sa_column
@@ -143,6 +145,7 @@ def Field(
     regex: Optional[str] = None,
     primary_key: bool = False,
     foreign_key: Optional[Any] = None,
+    foreign_key_kwargs: Optional[Mapping[str, Any]] = None,
     unique: bool = False,
     nullable: Union[bool, UndefinedType] = Undefined,
     index: Union[bool, UndefinedType] = Undefined,
@@ -174,6 +177,7 @@ def Field(
         regex=regex,
         primary_key=primary_key,
         foreign_key=foreign_key,
+        foreign_key_kwargs=foreign_key_kwargs,
         unique=unique,
         nullable=nullable,
         index=index,
@@ -432,9 +436,10 @@ def get_column_from_field(field: ModelField) -> Column:  # type: ignore
             nullable = field_nullable
     args = []
     foreign_key = getattr(field.field_info, "foreign_key", None)
+    foreign_key_kwargs = getattr(field.field_info, "foreign_key_kwargs", None)
     unique = getattr(field.field_info, "unique", False)
     if foreign_key:
-        args.append(ForeignKey(foreign_key))
+        args.append(ForeignKey(foreign_key, **(foreign_key_kwargs or dict())))
     kwargs = {
         "primary_key": primary_key,
         "nullable": nullable,