django - 使用带有 django-endless-pagination 的过滤器

Question

我正在使用 Django endles-pagination 以无限滚动的方式加载页面。我还有一些过滤器可以根据标准过滤数据（例如，根据价格进行价格滑块过滤）。现在当页面加载时，过滤器现在只从加载的页面中过滤，尽管我希望它从所有已经或将要加载的页面中过滤它。有没有办法做到这一点（通过发出一些ajax请求或其他东西）？

对此的任何帮助都会很棒。非常感谢。

Answer 1

要过滤数据，您必须get_queryset()在请求过滤查询的视图中重新定义方法。

例如，我请求模板中的当前语言以根据语言过滤博客文章：

class Blog(AjaxListView):
    context_object_name = "posts"
    template_name = 'cgapp/blog.html'
    page_template = 'cgapp/post_list.html'

def get_queryset(self):
    if self.request.LANGUAGE_CODE == 'en': #request value of the current language
        return News.objects.filter(language='en') #return filtered object if the current language is English
    else:
        return News.objects.filter(language='uk')

要根据用户输入过滤查询集，您可以参考 POST 方法：

from app.forms import BlogFilterForm

class Blog(LoginRequiredMixin, AjaxListView):
    context_object_name = "posts"
    template_name = 'blog/blog.html'
    page_template = 'blog/post_list.html'
    success_url = '/blog'

    def get_queryset(self): # define queryset
        queryset = Post.objects.all() # default queryset
        if self.request.method == 'POST': # check if the request method is POST
            form = BlogFilterForm(self.request.POST) # define form
            if form.is_valid(): 
                name = form.cleaned_data['name'] # retrieve data from the form
                if name:
                    queryset = queryset.filter(name=name) # filter queryset
        else:
            queryset = queryset
        return queryset 

    def get_context_data(self, **kwargs):
        context = super(Blog, self).get_context_data(**kwargs)
        context['form'] = BlogFilterForm() # define context to render the form on GET method
        return context

    def post(self, request, *args, **kwargs): # define post method
        return super(Blog, self).get(request, args, kwargs)

无休止的分页应该可以正常工作。