Class Serializer

lib/sqlalchemy/ext/serializer.py:88–116

class Serializer(pickle.Pickler):

    def persistent_id(self, obj):
        class="cm"># print class="st">"serializing:", repr(obj)
        if isinstance(obj, Mapper):
            id_ = class="st">"mapper:" + b64encode(pickle.dumps(obj.class_))
        elif isinstance(obj, MapperProperty):
            id_ = (
                class="st">"mapperprop:"
                + b64encode(pickle.dumps(obj.parent.class_))
                + class="st">":"
                + obj.key
            )
        elif isinstance(obj, Table):
            if class="st">"parententity" in obj._annotations:
                id_ = class="st">"mapper_selectable:" + b64encode(
                    pickle.dumps(obj._annotations[class="st">"parententity"].class_)
                )
            else:
                id_ = fclass="st">"table:{obj.key}"
        elif isinstance(obj, Column) and isinstance(obj.table, Table):
            id_ = fclass="st">"column:{obj.table.key}:{obj.key}"
        elif isinstance(obj, Session):
            id_ = class="st">"session:"
        elif isinstance(obj, Engine):
            id_ = class="st">"engine:"
        else:
            return None
        return id_


our_ids = re.compile(