zulip/zerver/migrations/0081_make_emoji_lowercase.py

# -*- coding: utf-8 -*-
# Generated by Django 1.10.5 on 2017-05-02 21:44

import django.core.validators
from django.db import migrations, models
from django.db.backends.postgresql_psycopg2.schema import DatabaseSchemaEditor
from django.db.migrations.state import StateApps

class Migration(migrations.Migration):

    dependencies = [
        ('zerver', '0080_realm_description_length'),
    ]

    def emoji_to_lowercase(apps: StateApps, schema_editor: DatabaseSchemaEditor) -> None:
        RealmEmoji = apps.get_model("zerver", "RealmEmoji")
        emoji = RealmEmoji.objects.all()
        for e in emoji:
            # Technically, this could create a conflict, but it's
            # exceedingly unlikely.  If that happens, the sysadmin can
            # manually rename the conflicts with the manage.py shell
            # and then rerun the migration/upgrade.
            e.name = e.name.lower()
            e.save()

    operations = [
        migrations.RunPython(emoji_to_lowercase),
        migrations.AlterField(
            model_name='realmemoji',
            name='name',
            field=models.TextField(validators=[django.core.validators.MinLengthValidator(1), django.core.validators.RegexValidator(message='Invalid characters in emoji name', regex='^[0-9a-z.\\-_]+(?<![.\\-_])$')]),
        ),
    ]