django haystack 自定义表单

我正在尝试使用 django haystack 制作自定义搜索表单，我只是从 haystack 的文档中进行修改：

forms.py

from django import forms
from haystack.forms import SearchForm

class DateRangeSearchForm(SearchForm):
    start_date = forms.DateField(required=False)
    end_date = forms.DateField(required=False)

   def search(self):
        # First, store the SearchQuerySet received from other processing.
        sqs = super(DateRangeSearchForm, self).search()

        # Check to see if a start_date was chosen.
        if self.cleaned_data['start_date']:
            sqs = sqs.filter(pub_date__gte=self.cleaned_data['start_date'])

        # Check to see if an end_date was chosen.
        if self.cleaned_data['end_date']:
            sqs = sqs.filter(pub_date__lte=self.cleaned_data['end_date'])

        return sqs

to :

from django import forms
from haystack.forms import HighlightedModelSearchForm

class CustomSearchForm(HighlightedModelSearchForm):
    title   = forms.CharField(max_length = 100, required = False)
    content = forms.CharField(max_length = 100, required = False)
    date_added = forms.DateField(required = False)
    post_by = forms.CharField(max_length = 100, required = False)

    def search(self):
        sqs = super(CustomSearchForm, self).search()
        if self.cleaned_data['post_by']:
            sqs = sqs.filter(content = self.cleaned_data['post_by'])
        if self.cleaned_data['title']:
            sqs = sqs.filter(content = self.cleaned_data['title'])
        if self.cleaned_data['content']:
            sqs = sqs.filter(content = self.cleaned_data['content'])
        if self.cleaned_data['date_added']:
            sqs = sqs.filter(content = self.cleaned_data['date_added']) 
        return sqs

干草堆.urls：

urlpatterns = patterns('haystack.views',
    url(r'^$', search_view_factory(view_class = SearchView, form_class = CustomSearchForm), name='haystack_search'),
)

当我访问该网址时，它显示：AttributeError at /search/

“CustomSearchForm”对象没有属性“cleaned_data”

你们能帮我吗？谢谢

然后我尝试评论搜索方法，但是当我向自定义字段提交一个单词时，结果总是什么都没有，只有当我向非自定义字段提交一个单词时它才能给出我想要的结果，已经尝试理解这一点一整天，请帮忙

我知道这是一个有点老的问题，但为了帮助其他可能正在查看此问题并想知道同样问题的人，这就是我在相同情况下如何让它发挥作用的方法。

沿着这些思路：

...
def search(self)
    sqs=super(MyFooSearchForm, self).search()

    if self.is_valid() and self.cleaned_data['foo']:
        sqs = sqs.filter(foostuff__exact=self.cleaned_data['foo'])

    return sqs

基本上，我在 self.cleaned_data[''] 之前添加了 'self.is_valid and' 这为我消除了错误。希望这可以帮助。

So,

def search(self):
    sqs = super(CustomSearchForm, self).search()
    if self.cleaned_data['post_by']:
        sqs = sqs.filter(content = self.cleaned_data['post_by'])
    if self.cleaned_data['title']:
        sqs = sqs.filter(content = self.cleaned_data['title'])
    if self.cleaned_data['content']:
        sqs = sqs.filter(content = self.cleaned_data['content'])
    if self.cleaned_data['date_added']:
        sqs = sqs.filter(content = self.cleaned_data['date_added']) 
    return sqs

会成为：

def search(self):
    sqs = super(CustomSearchForm, self).search()
    if self.is_valid() and self.cleaned_data['post_by']:
        sqs = sqs.filter(content = self.cleaned_data['post_by'])
    if self.is_valid() and self.cleaned_data['title']:
        sqs = sqs.filter(content = self.cleaned_data['title'])
    if self.is_valid() and self.cleaned_data['content']:
        sqs = sqs.filter(content = self.cleaned_data['content'])
    if self.is_valid() and self.cleaned_data['date_added']:
        sqs = sqs.filter(content = self.cleaned_data['date_added']) 
    return sqs

可能有更好的方法来做到这一点，我是 django/python 的相对初学者，但它对我有用。