zulip/analytics/migrations/0009_remove_messages_to_stream_stat.py

# -*- coding: utf-8 -*-
from django.db import migrations
from django.db.backends.postgresql_psycopg2.schema import DatabaseSchemaEditor
from django.db.migrations.state import StateApps

def delete_messages_sent_to_stream_stat(apps, schema_editor):
    # type: (StateApps, DatabaseSchemaEditor) -> None
    UserCount = apps.get_model('analytics', 'UserCount')
    StreamCount = apps.get_model('analytics', 'StreamCount')
    RealmCount = apps.get_model('analytics', 'RealmCount')
    InstallationCount = apps.get_model('analytics', 'InstallationCount')
    FillState = apps.get_model('analytics', 'FillState')

    property = 'messages_sent_to_stream:is_bot'
    UserCount.objects.filter(property=property).delete()
    StreamCount.objects.filter(property=property).delete()
    RealmCount.objects.filter(property=property).delete()
    InstallationCount.objects.filter(property=property).delete()
    FillState.objects.filter(property=property).delete()

class Migration(migrations.Migration):

    dependencies = [
        ('analytics', '0008_add_count_indexes'),
    ]

    operations = [
        migrations.RunPython(delete_messages_sent_to_stream_stat),
    ]