Django Haystack自定义搜索表单 [英] Django Haystack Custom Search Form

问题描述

我有一个基本的django-haystack SearchForm可以正常工作，但现在我正在尝试创建一个自定义搜索表单，其中包含几个要过滤的额外字段。

我遵循了关于创建自定义表单和视图的Haystack文档，但是当我尝试查看表单时，我只能得到错误：

  / search / calibration / 
 
的ValueError视图assetregister.views.calibration_search没有返回HttpResponse对象。它返回无。 
  

不应该在SearchForm的基础上注意返回一个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）：
＃首先我们需要存储SearchQuerySet在/从任何其他处理之后收到
 sqs = super（CalibrationSearch，self）.search（）
 
如果不是self.is_valid（）：
 return self.no_query_found（）
 
 #check查看是否使用任何日期过滤器，如果是这样应用过滤器
如果self.cleaned_data [ 'calibration_due_before']：
 sqs = sqs.filter（calibration_date_next__lte = self.cleaned_data ['calibration_due_before']）
 
如果self.cleaned _data ['calibration_due_after']：
 sqs = sqs.filter（calibration_date_next__gte = self.cleaned_data ['calibration_due_after']）
 
返回sqs 
  / pre> 
 
 
 views.py 
  from .forms import CalibrationSearch 
 from haystack.generic_views import SearchView 
 from haystack.query import SearchQuerySet 
 
 
 def calibr_search（SearchView）：
 template_name ='search / search.html' 
 form_class = CalibrationSearch 
 queryset = SearchQuerySet（）。filter（requires_calibration = True）
 
 def get_queryset（self）：
 queryset = super（calibr_search，self） get_queryset（）
 return queryset 
  
 urls.py 
  from django.conf.urls import include，url 
 from。导入视图
 
 urlpatterns = [
 .... 
 url（r'^ search / calibration /'，views.calibration_search，name ='calibr_search'），
 .... 
] 
  
 
 
解决方案
干草堆 SearchView 是一个基于类的视图，您必须在添加urls条目时调用 .as_view（）类方法。 / p> 
 
 
  url（r'^ search / calibration /'，views.calibration_search.as_view（），name ='calibr_search'），
  
 
I've got a basic django-haystack SearchForm working OK, but now I'm trying to create a custom search form that includes a couple of extra fields to filter on.

I've followed the Haystack documentation on creating custom forms and views, but when I try to view the form I can only get the error: 
ValueError at /search/calibration/

The view assetregister.views.calibration_search didn't return an HttpResponse object. It returned None instead.
Shouldn't basing this on SearchForm take care of returning a HttpResponse object?

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'),
    ....
]

解决方案
Haystack's SearchView is a class based view, you have to call .as_view() class method when adding a urls entry.
url(r'^search/calibration/', views.calibration_search.as_view(), name='calibration_search'),


                        
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