保存按钮不使用属性错误：“WSGIRequest”对象没有属性“project”

Question

我检查了这里的其他帖子，它们的属性错误与我的相同，但它们似乎是出于不同的原因。我目前正在从表单中请求信息，以便用户更新项目页面。然后，如果表单有效，我将保存表单，保存项目，然后尝试返回重定向到项目页面；但是，当我单击按钮时，计算机会呈现错误页面。我将附加forms.py、views.py、models.py和url.py：

更新部分的Views.py：

  @wraps(function)
  def wrap(request, *args, **kwargs):
        user = request.user
        name = kwargs.get('name')  
        if uProjects.objects.filter(project=Project.objects.get(name=name), user=user, ifAdmin=True).exists():
             return function(request, *args, **kwargs)
        else:
            return HttpResponseRedirect('/')
  return wrap

@admin_check
def update(request, name):
    project = Project.objects.get(name = name)
    if request.method == "POST":
        pr_form = ProjectUpdateForm(request.POST,
                                    request.FILES,
                                    instance=project)
    #if is_admin in Member == True: #need to authenticate user, access user permissions, if user has permission:
        if pr_form.is_valid():
            pr_form.save()
            messages.success(request, f'This project has been updated.')
           
            request.project.save()
            return redirect('project')
        
    else:
        pr_form = ProjectUpdateForm(instance=project)
    context = {
        'pr_form': pr_form
    }
    return render(request, 'projects/updateproject.html', context)

ProjectUpdateForm的forms.py：

class ProjectUpdateForm(forms.ModelForm):
    class Meta:
        model = Project
        fields=['name', 'department', 'department','bPic', 'logo',
        'department', 'purpose', 'projectTag', 'lookingFor', 'recruiting']

url.py

from projects import views as p

path('project/<str:name>/', p.project, name='project'),
path('editproject/<str:name>/', p.update, name="editproject"),

谢谢，请让我知道我能做什么

Answer 1

您的错误在第request.project.save()行，请求没有项目属性

实际上，您不需要为项目调用save()方法

因为ProjectUpdateForm是ModelForm，所以^{}（Django docs）方法将创建指定模型的新实例或更新分配的实例

@admin_check
def update(request, name):
    project = Project.objects.get(name = name)
    if request.method == "POST":
        pr_form = ProjectUpdateForm(request.POST,
                                    request.FILES,
                                    instance=project)
    #if is_admin in Member == True: #need to authenticate user, access user permissions, if user has permission:
        if pr_form.is_valid():
            # save() returns an instance object, you can use it to manipulate your object.
            instance = pr_form.save() 
            messages.success(request, f'This project has been updated.')
            # YOUR ERROR IS ⬇️ HERE request doesn't have project attribute
            # request.project.save()
            # redirect with arguments
            return redirect('project', name=instance.name)
    ...

此外，重定向必须包含参数name，因为项目url需要名称属性：

redirect('project', name=instance.name)