Method get_for_dialect

tortoise/fields/base.py:428–447

Returns a field by dialect override. :param dialect: The requested SQL Dialect. :param key: The attribute/method name.

(self, dialect: str, key: str)

        }

    def get_for_dialect(self, dialect: str, key: str) -> Any:
        """
        Returns a field by dialect override.

        :param dialect: The requested SQL Dialect.
        :param key: The attribute/method name.
        """
        try:
            dialect_cls = getattr(self, f"_db_{dialect}")  # throws AttributeError if not present
            dialect_value = getattr(dialect_cls, key)  # throws AttributeError if not present
        except AttributeError:
            pass
        else:  # we have dialect_cls and dialect_value, so lets use it
            # it could be that dialect_value is a computed property, like in CharField._db_oracle.SQL_TYPE,
            # and therefore one first needs to instantiate dialect_cls
            if isinstance(dialect_value, property):
                return getattr(dialect_cls(self), key)
            return dialect_value
        # If there is nothing special defined, return the value of self
        return getattr(self, key, None)

    def describe(self, serializable: bool) -> dict:
        """