from ajax_select import register

from ishtar_common.lookups import LookupChannel

from django.db.models import Q

from archaeological_context_records import models


@register("context_record")
class ContextRecordLookup(LookupChannel):
    model = models.ContextRecord

    def get_query(self, q, request):
        query = Q()
        for term in q.strip().split(" "):
            subquery = Q(cached_label__icontains=term) | Q(town__name__icontains=term)
            query &= subquery
        return self.model.objects.filter(query).order_by("cached_label")[:20]

    def format_item_display(self, item):
        return "<span class='ajax-label'>%s</span>" % item.cached_label