zulip/zerver/migrations/0181_userprofile_change_emojiset.py

from django.db import migrations, models
from django.db.backends.postgresql.schema import DatabaseSchemaEditor
from django.db.migrations.state import StateApps


def change_emojiset_choice(apps: StateApps, schema_editor: DatabaseSchemaEditor) -> None:
    UserProfile = apps.get_model('zerver', 'UserProfile')
    UserProfile.objects.exclude(emojiset__in=['google', 'text']).update(emojiset='google')

class Migration(migrations.Migration):

    dependencies = [
        ('zerver', '0180_usermessage_add_active_mobile_push_notification'),
    ]

    operations = [
        migrations.RunPython(
            change_emojiset_choice,
            reverse_code=migrations.RunPython.noop,
            elidable=True),
        migrations.AlterField(
            model_name='userprofile',
            name='emojiset',
            field=models.CharField(choices=[('google', 'Google'), ('text', 'Plain text')], default='google', max_length=20),
        ),
    ]