Environment dependencies
pip install django-haystack
pip install jieba
pip install whoosh
Environment configuration
Add this configuration in settings.py
INSTALLED_APPS = (
'haystack', #register fulltext searching framework
)
#the configuration of fulltext searching
HAYSTACK_CONNECTIONS = {
'default': {
# use the whoosh search engine
'ENGINE': 'haystack.backends.whoosh_backend.WhooshEngine',
# Specifies the default path of the index files generated by the index data corresponding to the keyword. When using the custom index file, write the custom file path here.
'PATH': os.path.join(BASE_DIR,'whoosh_index'), # the file path of the index files.
}
}
# Auto generate indexes when add, change and delete data in database tables.
HAYSTACK_SIGNAL_PROCESSOR = 'haystack.signals.RealtimeSignalProcessor'
Create search_indexs.py
in applications which need support searching.
from haystack import indexes
from apps.blog.models import Article
class ArticleIndex(indexes.SearchIndex, indexes.Indexable):
text = indexes.CharField(document=True, use_template=True)
def get_model(self):
return Article
def index_queryset(self, using=None):
return self.get_model().objects.filter(status='p')
In the templates
folder of the project, create folder structure like search/indexes/article/article_text.txt
, where article
is the lowercased model name.
# Specifies which fields in the table to index
{{ object.title }} # index Title field
{{ object.body }} # index Body field
Add search route
path('search', include('haystack.urls'), name='search'),
Add search form in the template.
<form action="/search" method="get">
{% csrf_token %}
<span id="searchAria" tabindex="0" onclick="searching()" onblur="offsearch()">
<input type="text" id="searchInput" style="display: none; border: none;" name="q">
<input type="submit" value="Search" style="border: none; display: none;" id="submitInput">
<a href="javascript:void(0);" class="navPlugs"><i class="fa fa-search" aria-hidden="true"></i></a>
</span>
</form>
tips: there must be an input tag whose attribute named name equals q in the form.
The following is the page of search results.
<div class="jupe main-body">
<ul class="post-list">
{% if query and page.object_list %}
{% for result in page.object_list %}
<li class="post-item">
<a class="post-title"
href="{{ result.object.get_absolute_url }}"
title="{{ result.object.title }}">{{ result.object.title | truncatesmart:34 }}</a>
<span class="post-time">{{ result.object.create_time | date:"Y.m.d" }}</span>
</li>
{% empty %}
<p>Not found</p>
{% endfor %}
{% if is_paginated %}{% load_pages %}{% endif %}
{% else %}
<h3>Found nothing. Try to search by another keyword</h3>
{% endif %}
</ul>
</div>
Build index
python manage.py rebuild_index
Configure Jieba Chinese Search
Because the default engine of whoosh doesn't support Chinese, u need to improve it.
Copy the default engine file \site-packages\haystack\backends\whoosh_backend.py
to the project folder and rename it to whoosh_cn_backend
.
Open it and import Jieba Chinese analyzer from jieba.analyse import ChineseAnalyzer
.
Replace StemmingAnalyzer
in the file with ChineseAnalyzer
Change the file path of search engine to custom path in settings.py
'ENGINE': 'apps.search.whoosh_cn_backend.WhooshEngine'
Rebuild index python manage.py rebuild_index
It supports Chinese search now.
Shadow: 朋友你怎么停更了,从十年之约来的,看到你止步于7月了
Pigwan: 就当发朋友圈了
天天下载: 感谢分享!!!!!!!
Pigwan: 你这评论是自己写的吗?
Pigwan: 不太清楚,我这十年都有了...