zulip/zerver/migrations/0277_migrate_alert_word.py

51 lines
1.9 KiB
Python

# -*- coding: utf-8 -*-
from django.db import migrations
from django.db.backends.postgresql_psycopg2.schema import DatabaseSchemaEditor
from django.db.migrations.state import StateApps
import ujson
from typing import Dict, List
def move_to_seperate_table(apps: StateApps, schema_editor: DatabaseSchemaEditor) -> None:
UserProfile = apps.get_model('zerver', 'UserProfile')
AlertWord = apps.get_model('zerver', 'AlertWord')
for user_profile in UserProfile.objects.all():
list_of_words = ujson.loads(user_profile.alert_words)
# Remove duplicates with our case-insensitive model.
word_dict: Dict[str, str] = {}
for word in list_of_words:
word_dict[word.lower()] = word
AlertWord.objects.bulk_create(
AlertWord(user_profile=user_profile, word=word, realm=user_profile.realm)
for word in word_dict.values()
)
def move_back_to_user_profile(apps: StateApps, schema_editor: DatabaseSchemaEditor) -> None:
AlertWord = apps.get_model('zerver', 'AlertWord')
UserProfile = apps.get_model('zerver', 'UserProfile')
user_ids_and_words = AlertWord.objects.all().values("user_profile_id", "word")
user_ids_with_words: Dict[int, List[str]] = dict()
for id_and_word in user_ids_and_words:
user_ids_with_words.setdefault(id_and_word["user_profile_id"], [])
user_ids_with_words[id_and_word["user_profile_id"]].append(id_and_word["word"])
for (user_id, words) in user_ids_with_words.items():
user_profile = UserProfile.objects.get(id=user_id)
user_profile.alert_words = ujson.dumps(words)
user_profile.save(update_fields=['alert_words'])
class Migration(migrations.Migration):
dependencies = [
('zerver', '0276_alertword'),
]
operations = [
migrations.RunPython(move_to_seperate_table, move_back_to_user_profile, elidable=True)
]