HAYSTACK_CONNECTIONS = {
'default': {
# 使用whoosh引擎
'ENGINE': 'haystack.backends.whoosh_cn_backend.WhooshEngine',
# 索引文件路径
'PATH': os.path.join(BASE_DIR, 'whoosh_index'),
}
}
# 当添加、修改、删除数据时,自动生成索引
HAYSTACK_SIGNAL_PROCESSOR = 'haystack.signals.RealtimeSignalProcessor' from haystack import indexes from models import Post #指定对于某个类的某些数据建立索引 class GoodsInfoIndex(indexes.SearchIndex, indexes.Indexable): text = indexes.CharField(document=True, use_template=True) def get_model(self): return Post #搜索的模型类 def index_queryset(self, using=None): return self.get_model().objects.all()
import jieba
from whoosh.analysis import Tokenizer, Token
class ChineseTokenizer(Tokenizer):
def __call__(self, value, positions=False, chars=False,
keeporiginal=False, removestops=True,
start_pos=0, start_char=0, mode='', **kwargs):
t = Token(positions, chars, removestops=removestops, mode=mode,
**kwargs)
seglist = jieba.cut(value, cut_all=True)
for w in seglist:
t.original = t.text = w
t.boost = 1.0
if positions:
t.pos = start_pos + value.find(w)
if chars:
t.startchar = start_char + value.find(w)
t.endchar = start_char + value.find(w) + len(w)
yield t
def ChineseAnalyzer():
return ChineseTokenizer() class GoodsSearchView(SearchView): def get_context_data(self, *args, **kwargs): context = super().get_context_data(*args, **kwargs) context['iscart']=1 context['qwjs']=2 return context
应用的urls文件中添加这条url 将类当一个视图的方法使用 .as_view()
url('^search/$', views.BlogSearchView.as_view()) 以上就是python中如何django使用haystack:全文检索的框架的实例讲解的详细内容,更多请关注Gxl网其它相关文章!
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