Question

我是django和haystack的菜鸟，这是我的表格，它扩展了haystack SearchForm

from haystack.forms import SearchForm
from ksaprice_app.models import ProductDiff, Vendor
from django import forms
from haystack.query import SearchQuerySet
class ProductsSearchForm(SearchForm):
    vendor_list=Vendor.objects.all().values_list('vendor_name')
    OPTIONS=( (item,str(item)) for item in vendor_list)
    print OPTIONS    select_vendor=forms.MultipleChoiceField(widget=forms.CheckboxSelectMultiple,choices=OPTIONS, required=False)
    def __init__(self, *args, **kwargs):
        super(ProductsSearchForm, self).__init__(*args, **kwargs)
    def search(self):
      sqs=super(ProductsSearchForm, self).search()
      if not self.is_valid():
        return self.no_query_found()
    #check to see if the submitted is clean and then filter
      if self.is_valid():               
        if self.cleaned_data['select_vendor']:
            #name of the field in html will be by default form field name
            vendor_filter=self.cleaned_data['select_vendor']
            #v_filter=vendor_filter[0].replace("(u'","").replace("',)","")
            v_filter=vendor_filter[0]
            print v_filter
            #sqs=SearchQuerySet().filter(product_vendor_name=v_filter)[:10]
            sqs=sqs.filter(product_vendor_name=v_filter)[:10] ##error is here
    return sqs
    def no_query_found(self):
        return self.searchqueryset.all()[:10]

这是视图

def ProductsSearch(request):
#instantiate the form with parameters from get method
  form = forms.ProductsSearchForm(request.GET)
  #calling search method here that fetches the search result
  context_var={}
  context_var['products'] = form.search()
  context_var['form']=forms.ProductsSearchForm
  print context_var
  return render_to_response('ksaprice_app/product_search.html', {'context_var': context_var})

在sqs.filter，我收到此错误'list' object has no attribute 'filter'。我关注了documentation和example。我无法弄清楚，问题是什么？ search方法返回list对象而不是SearchQuerySet对象，因此无法找到filter属性。请帮忙。我使用的是python 2.7.10，Django 1.8.4和solr 4.10.2 sqs是

Answer 1

3-4天后，我到达了解决方案。

解决方案1-：架构更改

第1步：转到您的收藏管理架构文件并进行修改 第2步：查找并将<field name="django_ct" type="text_general"/>替换为<field name="django_ct" type="string"/>

操作系统版本：Ubuntu 14.04 LTS
搜索引擎版本：Solr 7.2.1
Python版本：3.4.3
Django版本：2.0
Haystack版本：2.8.0

解决方案2-：破解核心文件

Step1： sudo vim / home / your path / site-packages / haystack / backends / solr_backend.py 第2步：查找并将app_label, model_name = raw_result[DJANGO_CT].split('.')替换为app_label, model_name = raw_result[DJANGO_CT][0].split('.')

Answer 2

第一步：

sudo vim /home/your path/site-packages/haystack/backends/solr_backend.py

Step2：查找和替换
app_label, model_name = raw_result[DJANGO_CT].split('.')
与
app_label, model_name = raw_result[DJANGO_CT][0].split('.')
第三步：查找和替换
result = result_class(app_label, model_name, raw_result[DJANGO_ID], raw_result['score'], **additional_fields)
与
result = result_class(app_label, model_name, raw_result[DJANGO_ID][0], raw_result['score'], **additional_fields)

haystack搜索没有正确返回结果，错误：list＆＃39;对象没有属性＆＃39; filter＆＃39;

2 个答案: