python - Django Haystack 自定义搜索表单

Question

我已经有一个基本的 django-haystack SearchForm 工作正常，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。

我已按照 Haystack 文档创建自定义表单和 View ，但是当我尝试查看表单时，我只能收到错误:

ValueError at /search/calibration/

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

基于 SearchForm 不应该负责返回 HttpResponse 对象吗？

表单.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

View .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

url.py

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

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

Answer 1

Haystack 的 SearchView 是基于类的 View ，添加 url 条目时必须调用 .as_view() 类方法。

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