def update_user(user_id, username, chat_id=None, chat_name=None):
with INSERTION_LOCK:
user = SESSION.query(Users).get(user_id)
if not user:
user = Users(user_id, username)
SESSION.add(user)
SESSION.flush()
else:
user.username = username
if not chat_id or not chat_name:
SESSION.commit()
return
chat = SESSION.query(Chats).get(str(chat_id))
if not chat:
chat = Chats(str(chat_id), chat_name)
SESSION.add(chat)
SESSION.flush()
else:
chat.chat_name = chat_name
member = SESSION.query(ChatMembers).filter(
ChatMembers.chat == chat.chat_id,
ChatMembers.user == user.user_id).first()
if not member:
chat_member = ChatMembers(chat.chat_id, user.user_id)
SESSION.add(chat_member)
SESSION.commit()
def migrate_chat(old_chat_id, new_chat_id):
with INSERTION_LOCK:
chat = SESSION.query(Chats).get(str(old_chat_id))
if chat:
chat.chat_id = str(new_chat_id)
SESSION.add(chat)
SESSION.flush()
chat_members = SESSION.query(ChatMembers).filter(
ChatMembers.chat == str(old_chat_id)).all()
for member in chat_members:
member.chat = str(new_chat_id)
SESSION.add(member)
SESSION.commit()