Django Haystack自定义搜索表单

Question

我有一个基本的Django干草堆SearchForm工作正常，但现在我试图创建一个自定义搜索表单，其中包括一些额外的字段进行过滤。

我跟着上创建自定义表单和视图草堆文件，但是当我尝试查看的形式，我只能得到错误：

ValueError at /search/calibration/ 

The view assetregister.views.calibration_search didn't return an HttpResponse object. It returned None instead. 

不应SearchForm此基础照顾返回一个HttpResponse对象？

forms.py

from django import forms 
from haystack.forms import SearchForm 

class CalibrationSearch(SearchForm): 
    calibration_due_before = forms.DateField(required=False) 
    calibration_due_after = forms.DateField(required=False) 

    def search(self): 
     #First we need to store SearchQuerySet recieved after/from any other processing that's going on 
     sqs = super(CalibrationSearch, self).search() 

     if not self.is_valid(): 
      return self.no_query_found() 

     #check to see if any date filters used, if so apply filter 
     if self.cleaned_data['calibration_due_before']: 
      sqs = sqs.filter(calibration_date_next__lte=self.cleaned_data['calibration_due_before']) 

     if self.cleaned_data['calibration_due_after']: 
      sqs = sqs.filter(calibration_date_next__gte=self.cleaned_data['calibration_due_after']) 

     return sqs 

views.py

from .forms import CalibrationSearch 
from haystack.generic_views import SearchView 
from haystack.query import SearchQuerySet 


def calibration_search(SearchView): 
    template_name = 'search/search.html' 
    form_class = CalibrationSearch 
    queryset = SearchQuerySet().filter(requires_calibration=True) 

    def get_queryset(self): 
     queryset = super(calibration_search, self).get_queryset() 
     return queryset 

urls.py

from django.conf.urls import include, url 
from . import views 

urlpatterns = [ 
    .... 
    url(r'^search/calibration/', views.calibration_search, name='calibration_search'), 
    .... 
] 

Answer 1

草堆的SearchView是一种基于类视图，你必须调用.as_view()类方法时添加一个URL条目。

url(r'^search/calibration/', views.calibration_search.as_view(), name='calibration_search'),