diff options
Diffstat (limited to 'lib/sqlalchemy/orm/interfaces.py')
| -rw-r--r-- | lib/sqlalchemy/orm/interfaces.py | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/lib/sqlalchemy/orm/interfaces.py b/lib/sqlalchemy/orm/interfaces.py index 866749139..2af883da2 100644 --- a/lib/sqlalchemy/orm/interfaces.py +++ b/lib/sqlalchemy/orm/interfaces.py @@ -269,6 +269,15 @@ _DEFAULT_ATTRIBUTE_OPTIONS = _AttributeOptions( _NoArg.NO_ARG, ) +_DEFAULT_READONLY_ATTRIBUTE_OPTIONS = _AttributeOptions( + False, + _NoArg.NO_ARG, + _NoArg.NO_ARG, + _NoArg.NO_ARG, + _NoArg.NO_ARG, + _NoArg.NO_ARG, +) + class _DCAttributeOptions: """mixin for descriptors or configurational objects that include dataclass @@ -519,19 +528,24 @@ class MapperProperty( """ def __init__( - self, attribute_options: Optional[_AttributeOptions] = None + self, + attribute_options: Optional[_AttributeOptions] = None, + _assume_readonly_dc_attributes: bool = False, ) -> None: self._configure_started = False self._configure_finished = False - if ( - attribute_options - and attribute_options != _DEFAULT_ATTRIBUTE_OPTIONS - ): + + if _assume_readonly_dc_attributes: + default_attrs = _DEFAULT_READONLY_ATTRIBUTE_OPTIONS + else: + default_attrs = _DEFAULT_ATTRIBUTE_OPTIONS + + if attribute_options and attribute_options != default_attrs: self._has_dataclass_arguments = True self._attribute_options = attribute_options else: self._has_dataclass_arguments = False - self._attribute_options = _DEFAULT_ATTRIBUTE_OPTIONS + self._attribute_options = default_attrs def init(self) -> None: """Called after all mappers are created to assemble |