Method _adapt_element

lib/sqlalchemy/orm/util.py:1196–1228

(
        self, expr: _ORMCOLEXPR, key: Optional[str] = None
    )

        )._aliased_insp

    def _adapt_element(
        self, expr: _ORMCOLEXPR, key: Optional[str] = None
    ) -> _ORMCOLEXPR:
        assert isinstance(expr, ColumnElement)
        d: Dict[str, Any] = {
            "parententity": self,
            "parentmapper": self.mapper,
        }
        if key:
            d["proxy_key"] = key

        # userspace adapt of an attribute from AliasedClass; validate that
        # it actually was present
        adapted = self._adapter.adapt_check_present(expr)
        if adapted is None:
            adapted = expr
            if self._adapter.adapt_on_names:
                util.warn_limited(
                    "Did not locate an expression in selectable for "
                    "attribute %r; ensure name is correct in expression",
                    (key,),
                )
            else:
                util.warn_limited(
                    "Did not locate an expression in selectable for "
                    "attribute %r; to match by name, use the "
                    "adapt_on_names parameter",
                    (key,),
                )

        return adapted._annotate(d)._set_propagate_attrs(
            {"compile_state_plugin": "orm", "plugin_subject": self}
        )

    if TYPE_CHECKING:
        # establish compatibility with the _ORMAdapterProto protocol,