使用面临未找到反向问题的类基视图

Posted 2023-02-24

【中文标题】使用面临未找到反向问题的类基视图

【英文标题】：using class base view facing a issue of reverse not found

【发布时间】：2021-09-25 22:14:30

【问题描述】：

我正在为 section.html 使用基于类的 d 视图，在该视图中，我尝试借助表单实现添加到购物车功能，但在单击添加到汽车后却显示错误

未找到没有参数的“部分”的反向。尝试了 1 种模式：['(?P[0-9]+)/Sections/$']

这是我的意见.py

@method_decorator(login_required, name='dispatch')
class Sections(View):
    def post(self, request, subject_id):
        sections =request.POST.get('section')
        print(sections)
        return redirect('subjects:section')


    def get(self, request, subject_id):
        subject = get_object_or_404(Subject, pk=subject_id) # retrieve the subject 
        sections = subject.section.all() # get the sections related to the subject
        return render (request, 'sections.html',"section_list" : sections )

我的 urls.py

urlpatterns = [
    path('<int:subject_id>/Sections/', Sections.as_view(),name='section'),
]

我的section.html

    <ul class="sec">
      % for section in section_list %
      <div class="card col-11">
        <div class="card-header">
         section.title 
        </div>
        <div class="card-body">
          <h5 class="card-about"> section.about_section </h5> <br>
          <i class="price fas fa-rupee-sign">  section.price </i> <br> <br>
          <i class="icon text-white fas fa-chalkboard-teacher">  section.teacher </i> 
          <i class="icon text-white fas fa-clock">  section.content_duration</i>
          <i class="icon text-white fas fa-tags">  section.subject.name </i>
          <form action="#" method="POST">
            % csrf_token %
          <input hidden type="text" name="section" value="section.id">
          <input type="submit" class="btn btn-outline-primary" value="Add To Cart">
        </form>
        </div>
      </div>
      % endfor %
  </ul>

我的部分模型与另一个带有外键的模型名称主题相关

【参考方案1】：

您必须指定 subject_id 进行重定向，因为路径中有 <int:subject_id> 并且 get 方法需要它。

@method_decorator(login_required, name='dispatch')
class Sections(View):
    def post(self, request, subject_id):
        sections =request.POST.get('section')
        print(sections)
        return redirect('subjects:section', subject_id=subject_id)