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from django.apps import AppConfig
from django.db.backends.signals import connection_created
from django.db.models import CharField, TextField
from django.utils.translation import ugettext_lazy as _

from .lookups import SearchLookup, Unaccent
from .signals import register_hstore_handler


class PostgresConfig(AppConfig):
    name = 'django.contrib.postgres'
    verbose_name = _('PostgreSQL extensions')

    def ready(self):
        connection_created.connect(register_hstore_handler)
        CharField.register_lookup(Unaccent)
        TextField.register_lookup(Unaccent)
        CharField.register_lookup(SearchLookup)
        TextField.register_lookup(SearchLookup)