搜索多个字段 [英] Search over multiple fields

问题描述

我认为我并没有正确理解django-haystack：

I think I don't unterstand django-haystack properly:

我有一个包含多个字段的数据模型，我需要搜索其中两个字段：

I have a data model containing several fields, and I would to have two of them searched:

class UserProfile(models.Model):
    user = models.ForeignKey(User, unique=True, default=None)
    twitter_account = models.CharField(max_length=50, blank=False)

我的搜索索引设置：

class UserProfileIndex(SearchIndex):
    text = CharField(document=True, model_attr='user')
    twitter_account = CharField(model_attr='twitter_account')

    def get_queryset(self):
        """Used when the entire index for model is updated."""
        return UserProfile.objects.all()

但是当我执行搜索时，只有字段搜索用户名； twitter_account将被忽略。当我通过dbshel​​l选择Searchresults时，对象包含 user和 twitter_account的正确值，但结果页面显示无结果：

But when I perform a search, only the field "username" is searched; "twitter_account" is ignored. When I select the Searchresults via dbshell, the objects contain the correct values for "user" and "twitter_account", but the result page shows a "no results":

    {% if query %}
        <h3>Results</h3>

        {% for result in page.object_list %}
            <p>
               <a href="{{ result.object.get_absolute_url }}">{{ result.object.id }}</a>
            </p>
        {% empty %}
            <p>No results</p>
        {% endfor %}
    {% endif %}

有什么想法吗？

推荐答案

我猜想那是因为haystack使用document字段进行常规搜索，除非您为twitter_account字段等其他字段定义了特定的搜索。

I guess thats because haystack uses the document field for generic searches unless you define a specific search for other fields like the twitter_account field.

摘自干草堆文档

每个SearchIndex都需要
一个（也只有一个）包含$ b的字段$ b document = True。这向
Haystack和搜索引擎都指示了大约
，该字段是
在其中进行搜索的主要字段。

Every SearchIndex requires there be one (and only one) field with document=True. This indicates to both Haystack and the search engine about which field is the primary field for searching within.

尝试按如下方式指定索引

Try specifing the index as follows

class UserProfileIndex(SearchIndex):
    text = CharField(document=True, use_template=True)
    user = CharField(model_attr='user')
    twitter_account = CharField(model_attr='twitter_account')

并创建一个名为
search / indexes // userprofile_text.txt的文件

and create the a file named search/indexes//userprofile_text.txt

以下

{{ object.user.get_full_name }}
{{ object.twitter_account}}

现在，当您不指定干草堆时，干草堆将搜索该文件的内容（您可以在其中添加所需内容）索引过滤器。

now haystack will search in the contents of this file (where you can add whatever you want) when you don't specify an index filter.

这篇关于搜索多个字段的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！