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47bf111de8
This will make django automatically remove them when we run squashmigrations. There are still some RunSQL statements which we will have to take care of manually.
76 lines
2.2 KiB
Python
76 lines
2.2 KiB
Python
# Generated by Django 1.11.4 on 2017-08-30 00:26
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import ujson
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from django.db import connection, migrations
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from django.db.backends.postgresql.schema import DatabaseSchemaEditor
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from django.db.migrations.state import StateApps
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def convert_muted_topics(apps: StateApps, schema_editor: DatabaseSchemaEditor) -> None:
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stream_query = '''
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SELECT
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zerver_stream.name,
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zerver_stream.realm_id,
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zerver_stream.id,
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zerver_recipient.id
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FROM
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zerver_stream
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INNER JOIN zerver_recipient ON (
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zerver_recipient.type_id = zerver_stream.id AND
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zerver_recipient.type = 2
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)
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'''
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stream_dict = {}
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with connection.cursor() as cursor:
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cursor.execute(stream_query)
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rows = cursor.fetchall()
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for (stream_name, realm_id, stream_id, recipient_id) in rows:
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stream_name = stream_name.lower()
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stream_dict[(stream_name, realm_id)] = (stream_id, recipient_id)
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UserProfile = apps.get_model("zerver", "UserProfile")
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MutedTopic = apps.get_model("zerver", "MutedTopic")
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new_objs = []
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user_query = UserProfile.objects.values(
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'id',
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'realm_id',
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'muted_topics'
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)
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for row in user_query:
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user_profile_id = row['id']
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realm_id = row['realm_id']
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muted_topics = row['muted_topics']
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tups = ujson.loads(muted_topics)
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for (stream_name, topic_name) in tups:
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stream_name = stream_name.lower()
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val = stream_dict.get((stream_name, realm_id))
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if val is not None:
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stream_id, recipient_id = val
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muted_topic = MutedTopic(
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user_profile_id=user_profile_id,
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stream_id=stream_id,
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recipient_id=recipient_id,
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topic_name=topic_name,
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)
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new_objs.append(muted_topic)
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with connection.cursor() as cursor:
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cursor.execute('DELETE from zerver_mutedtopic')
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MutedTopic.objects.bulk_create(new_objs)
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class Migration(migrations.Migration):
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dependencies = [
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('zerver', '0101_muted_topic'),
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]
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operations = [
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migrations.RunPython(convert_muted_topics, elidable=True),
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]
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