Question

我想知道如果不使用像Haystack这样的任何单独的软件包，是否可以进行简单搜索，仅用于搜索记录？

Answer 1

当然，您可以使用Django ORM filter()来查找关键字。

您可能对icontains或in特别感兴趣。

这是查询集中所有可用方法的link。

Answer 2

您可以在此博客中实施简单的搜索引擎：

http://julienphalip.com/post/2825034077/adding-search-to-a-django-site-in-a-snap

构建搜索引擎：

import re

from django.db.models import Q

def normalize_query(query_string,
                    findterms=re.compile(r'"([^"]+)"|(\S+)').findall,
                    normspace=re.compile(r'\s{2,}').sub):
    ''' Splits the query string in invidual keywords, getting rid of unecessary spaces
        and grouping quoted words together.
        Example:

        >>> normalize_query('  some random  words "with   quotes  " and   spaces')
        ['some', 'random', 'words', 'with quotes', 'and', 'spaces']

    '''
    return [normspace(' ', (t[0] or t[1]).strip()) for t in findterms(query_string)] 

def get_query(query_string, search_fields):
    ''' Returns a query, that is a combination of Q objects. That combination
        aims to search keywords within a model by testing the given search fields.

    '''
    query = None # Query to search for every search term        
    terms = normalize_query(query_string)
    for term in terms:
        or_query = None # Query to search for a given term in each field
        for field_name in search_fields:
            q = Q(**{"%s__icontains" % field_name: term})
            if or_query is None:
                or_query = q
            else:
                or_query = or_query | q
        if query is None:
            query = or_query
        else:
            query = query & or_query
    return query

用法：

entry_query = get_query(query_string, ['title', 'body',])

found_entries = Entry.objects.filter(entry_query).order_by('-pub_date')

简单的django网站搜索

2 个答案:

构建搜索引擎：

用法：