Question

我不确定如何说出来，但是这里有。我有几个看法，我的urls.py似乎根本没有，我不知道为什么。我是django的新手，并承认对其中的一些工作有点困惑。

在我的模板中，我有：

<ul>
    <li><a href="/project/{{project.slug}}/tickets/create">Create Ticket</a></li>
    <li><a href="/project/{{ project.slug }}/tickets/edit">Edit Ticket</a></li>
    <li><a href="/project/{{ project.slug }}/tickets/delete">Delete Ticket</a></li>
</ul>

在我的urls.py中：

(r'^ticket/(?P<ticket_id>\d+)$', views.editTicket),
(r'^(?P<project_slug>[^\.^/]+)/tickets/create$', views.createTicket),
(r'^(?P<project_slug>[^\.^/]+)/tickets/(?P<ticket_id>\d+)$', views.deleteTicket),

在我的views.py中：

def createTicket(request, project_slug):
    project = Project.objects.get(slug=project_slug)
    form = None
    if request.method == 'POST':
        t = Ticket(created_by=request.user, assigned_to=request.user)
        form = TicketCreateForm(request.POST, instance=t)
        if form.is_valid():
            comment = Comment(user=request.user, body=request.POST.get("description", ""), subject="")
            comment.save()
            t.description = comment
            form.save()
            return HttpResponseRedirect("/project/ticket/%d" % t.pk)
    else:
        form = TicketCreateForm(instance=Ticket(project=project, assigned_to=request.user))
    payload = { 'project':project, 'form':form }
    return render(request, 'project/ticket_add.html', payload)

def editTicket(request, ticket_id):
    ticket = Ticket.objects.get(pk=ticket_id)
    if request.method == 'POST':
        form = TicketCreateForm(request.POST, instance=ticket)
        if form.is_valid():
            form.setComment(Comment(parent=ticket.description, user=request.user, body=request.POST.get("comment", " ")))
            form.save()
    form = TicketCreateForm(instance=ticket)
    payload = { 'project':ticket.project, 'ticket':ticket, 'ticket_form':form }
    return render(request, 'project/ticket.html', payload)

def deleteTicket(request, ticket_id):
    ticket = Ticket.objects.get(pk=ticket_id)
    ticket.delete()
    redirect_to = 'project/tickets.html'
    return HttpResponseRedirect(redirect_to)

def editTicket(request, ticket_id):
    ticket = Ticket.objects.get(pk=ticket_id) 
    if request.method == 'POST': 
        form = TicketCreateForm(request.POST, instance=ticket) 
        if form.is_valid(): 
            form.setComment(Comment(parent=ticket.description, user=request.user, body=request.POST.get("comment", " "))) 
            form.save()
    form = TicketCreateForm(instance=ticket) 
    payload = { 'project':ticket.project, 'ticket':ticket, 'ticket_form':form }
    return render(request, 'project/ticket.html', payload)

我在这里做错了什么？有人可以帮忙吗？

Answer 1

这里有几个问题，

首先，除非您修改了相关设置，否则最好在网址的末尾添加/，特别是因为您在网址中包含了$ regexp，而django可能会重定向以添加最终结果削减你的地址。

其次，您的deleteTicket函数正在使用request和ticket_id作为参数，而根据您的正则表达式需要3，project_slug缺失。

第3，<a href="/project/{{ project.slug }}/tickets/delete">Delete Ticket</a>根本没有匹配(r'^(?P<project_slug>[^\.^/]+)/tickets/(?P<ticket_id>\d+)$', views.deleteTicket),，因为没有ticket_id的迹象。

第4（与匹配问题无关），您正在通过HTTP GET请求删除对象，这可能不是一个好主意（例如，它可能被缓存或搜索引擎可能尝试命中它）。同时调用Ticket.objects.get(pk=ticket_id)可能会引发异常，请尝试get_object_or_404(Ticket, pk=ticket_id)，这更有可能实现您想要的效果。它位于from django.shortcuts import get_object_or_404。

如果这样做不成功，请尝试查看模板中显示的HTML源代码（放置的值代替{{project.slug}}），以便进行进一步的检查。

希望这可以帮助你。

DJANGO中的URL和视图

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