Haystack setup for Django 1.8

haystack.py

#app/settings.py
INSTALLED_APPS = (
#...
    'haystack',
)

HAYSTACK_CONNECTIONS = {
    'default': {
        'ENGINE': 'haystack.backends.elasticsearch_backend.ElasticsearchSearchEngine',
        'URL': 'http://127.0.0.1:9200/',
        'INDEX_NAME': 'haystack',
    },
}

#app/urls.py
url(r'^search/', include('haystack.urls', app_name='search', namespace='search')),

#qa/search_indexes.py
import datetime
from haystack import indexes
from .models import Question

class QuestionIndex(indexes.SearchIndex, indexes.Indexable):
    text = indexes.CharField(document=True, use_template=True)
    pub_date = indexes.DateTimeField(model_attr='pub_date')

    def get_model(self):
        return Question

    def index_queryset(self, using=None):
        """Used when the entire index for model is updated."""
        return self.get_model().objects.filter(pub_date__lte=datetime.datetime.now())


#qa/templates/search/indexes/qa/question_text.txt
{{ object.title }}
{{ object.text }}
{% for answer in object.answer_set.all %}
  {{ answer.text }}
{% endfor %}

#qa/templates/search/search.html
{% extends 'base.html' %}

{% block content %}
<div class="row">
  <div class="col-md-12">
    <form method="get" action=".">
      <table>
        {{ form.as_table }}
        <tr>
          <td>&nbsp;</td>
          <td>
            <input type="submit" value="Search">
          </td>
        </tr>
      </table>
    </form>
  </div>
</div>

{% if query %}
<div class="row">
  <div class="col-md-12">
    <h3>Результаты поиска</h3>
    {% for q in page.object_list %}
    <div class="panel panel-default">
      <div class="panel-body">
        <a href="{{ q.object.get_absolute_url }}">{{ q.object.title }} (rating: {{ q.object.likes_rating }})</a>
      </div>
      <div class="panel-footer">{{ q.object.text|truncatechars:50 }}</div>
    </div>
    {% empty %}
    <p>Ничего не найдено.</p>
    {% endfor %}
  </div>
</div>

<div class="row">
  <div class="col-md-12">
    {% if page.has_previous or page.has_next %}
    <div>
      {% if page.has_previous %}<a href="?q={{ query }}&amp;page={{ page.previous_page_number }}">{% endif %}&laquo; Previous{% if page.has_previous %}</a>{% endif %}
      |
      {% if page.has_next %}<a href="?q={{ query }}&amp;page={{ page.next_page_number }}">{% endif %}Next &raquo;{% if page.has_next %}</a>{% endif %}
    </div>
    {% endif %}
  </div>
</div>
{% endif %}
{% endblock %}