search_indexes.py

import datetime
from haystack import indexes
from haystack import site
from myapp.models import Note


class NoteIndex(indexes.SearchIndex):
    text = indexes.CharField(document=True, use_template=True)
    author = indexes.CharField(model_attr='user')
    pub_date = indexes.DateTimeField(model_attr='pub_date')
    # We add this for autocomplete.
    content_auto = indexes.EdgeNgramField()

    def get_queryset(self):
        """Used when the entire index for model is updated."""
        return Note.objects.filter(pub_date__lte=datetime.datetime.now())
    
    def prepare(self, obj):
        data = super(NoteIndex, self).prepare(obj)
        data['content_auto'] = data['text']
        return data


site.register(Note, NoteIndex)