Question

在引用视图上的特定字段时，我遇到了这个奇怪的问题，django创建了一个SQL查询，尽管它是一个haystack索引。

search_indexes.py

class StoreIndex(indexes.ModelSearchIndex, indexes.Indexable):
    text = indexes.CharField(document=True, use_template=True)        
    city = indexes.CharField(model_attr='city__name', faceted=True)
    region = indexes.CharField(model_attr='region__name', faceted=True)
    country = indexes.CharField(model_attr='country__name')
    created_at = indexes.DateTimeField(model_attr='created_at')
    tags = indexes.MultiValueField(model_attr='tags__names', faceted=True)

    def get_model(self):
        return Store

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

urls.py

queryset = SearchQuerySet().facet('tags').facet('region').facet('city')

urlpatterns = patterns('haystack.views',
                   url(r'^search', FacetedSearchView(form_class=FacetedSearchForm, searchqueryset=queryset),
                       name='haystack_search'),
                   )

results.html

<!-- Begin results. -->
        <div id="search-results">
            <ul>
            {% for result in page.object_list %}
                {% include 'search/_result_object.html' %}
                {% empty %}
                <p>No results found.</p>
            {% endfor %}               
            </ul>
        </div>
        <!-- End results. -->

_result_object.html

{% with object=result.object %}
<li class="search-result">
<section>
    <h3>{{ object.name }}</h3>
    <p>{{ object.addressLine1 }}, {{ object.addressLine2 }}, {{ object.addressLine3 }}   </p>
    <strong> {{ object.city }}, {{ object.region }} </strong>
    <strong class="pull-right"><a href="{% url 'store_detail' pk=object.id %}">Details</a></strong>
</section>
</li>
{% endwith %}

在访问{{object.city}}，{{object.region}}

时查询数据库

我已经验证，城市和地区都存储在elasticsearch中作为专有名称。

提前致谢。

Answer 1

如果您使用任何result.object.*字段，它将执行数据库查找并点击您的SQL数据库。试试例如。直接result.city，应该使用索引中的数据并避免SQL DB命中。

Django haystack查询数据库

1 个答案: