ordered_multimap.py

from weakref import WeakValueDictionary
from collections import defaultdict

class StringWrapper:
    def __init__(self, s):
        self.s = s


class OrderedMultiIndexMapWeakRef:
    def __init__(self):
        self.data = []
        self.ids = []
        self.index_list = []

    def insert(self, id, text, title: str, sub_title: str):
        self.data.append(text)
        self.ids.append(id)
        self.index_list.append(WeakValueDictionary({'title': StringWrapper(title), 'sub_title': StringWrapper(sub_title)}))

    def all_ids(self):
        return self.ids

    def all_metadatas(self):
        return [dict(d.items()) for d in self.index_list]

    def all_texts(self):
        return self.data