zulip/zerver/migrations/0102_convert_muted_topic.py

79 lines
2.3 KiB
Python

# Generated by Django 1.11.4 on 2017-08-30 00:26
import orjson
from django.db import connection, migrations
from django.db.backends.base.schema import BaseDatabaseSchemaEditor
from django.db.migrations.state import StateApps
from psycopg2.sql import SQL
def convert_muted_topics(apps: StateApps, schema_editor: BaseDatabaseSchemaEditor) -> None:
stream_query = SQL(
"""
SELECT
zerver_stream.name,
zerver_stream.realm_id,
zerver_stream.id,
zerver_recipient.id
FROM
zerver_stream
INNER JOIN zerver_recipient ON (
zerver_recipient.type_id = zerver_stream.id AND
zerver_recipient.type = 2
)
"""
)
stream_dict = {}
with connection.cursor() as cursor:
cursor.execute(stream_query)
rows = cursor.fetchall()
for stream_name, realm_id, stream_id, recipient_id in rows:
stream_name = stream_name.lower()
stream_dict[(stream_name, realm_id)] = (stream_id, recipient_id)
UserProfile = apps.get_model("zerver", "UserProfile")
MutedTopic = apps.get_model("zerver", "MutedTopic")
new_objs = []
user_query = UserProfile.objects.values(
"id",
"realm_id",
"muted_topics",
)
for row in user_query:
user_profile_id = row["id"]
realm_id = row["realm_id"]
muted_topics = row["muted_topics"]
tups = orjson.loads(muted_topics)
for stream_name, topic_name in tups:
stream_name = stream_name.lower()
val = stream_dict.get((stream_name, realm_id))
if val is not None:
stream_id, recipient_id = val
muted_topic = MutedTopic(
user_profile_id=user_profile_id,
stream_id=stream_id,
recipient_id=recipient_id,
topic_name=topic_name,
)
new_objs.append(muted_topic)
with connection.cursor() as cursor:
cursor.execute("DELETE from zerver_mutedtopic")
MutedTopic.objects.bulk_create(new_objs)
class Migration(migrations.Migration):
dependencies = [
("zerver", "0101_muted_topic"),
]
operations = [
migrations.RunPython(convert_muted_topics, elidable=True),
]