我一直在努力想出一个解决方案，允许django中的登录用户删除自己创建的模型对象。我正在测试服务对象（他们使用ServiceForm（ModelForm）创建的服务订单。我使用django-safedelete来保存django admin中的已删除对象，但是对于用户而言消失了。我有这种行为，但实际上无法删除对象，在delete_service url中尝试了很多排列，在视图中pk = id，很多不同的东西，但仍然得到相同类型的错误。（如下所述，在服务上页面，有一个上下文显示模板对象的数据在面板中，并在面板的右下方有一个删除按钮/模式弹出窗口，它使用DeleteServiceForm函数的上下文来删除对象。我听说你不能每个模板使用多个上下文，但如果不是如何解决这个问题？）我在ubuntu16.04 vm上使用python3.5，django1.11，postgresql db，apache2。
'''
#ERROR
Exception Type: NoReverseMatch at /dashboard/service/
Exception Value: Reverse for 'delete_service' with keyword arguments '{'pk': ''}' not found. 1 pattern(s) tried: ['dashboard/deleteservice/(?P<pk>\\d+)/$']
'''
# dashboard/urls.py
url(r'^dashboard/deleteservice/(?P<pk>\d+)/$', views.delete_service, name='delete_service'),
url(r'^dashboard/service/$', views.service, name='service'),
# dashboard models.py
# django-safedelete model
from safedelete.config import *
from safedelete.models import SafeDeleteModel
from safedelete.managers import SafeDeleteManager
class MyModelManager(SafeDeleteManager):
_safedelete_visibility = DELETED_INVISIBLE
# service model
class Service(SafeDeleteModel):
_safedelete_policy = SOFT_DELETE_CASCADE
user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
created_at = models.DateTimeField(auto_now_add=True)
service_type = models.ManyToManyField('ServiceType')
description = models.TextField(blank=True)
def __str__(self):
return "Service Order for: {user}".format(user=self.user)
objects = MyModelManager()
class ServiceType(models.Model):
label = models.CharField(max_length=200, unique=True)
def __str__(self):
return self.label
# dashboard admin.py
class ServiceSDA(SafeDeleteAdmin):
list_display = (highlight_deleted, '__str__', 'created_at') + SafeDeleteAdmin.list_display
list_filter = ('user',) + SafeDeleteAdmin.list_filter
def has_delete_permission(self, request, obj=Service):
return True
admin.site.register(Service, ServiceSDA)
# dashboard forms.py
class NewServiceForm(forms.ModelForm):
accept_tos = forms.BooleanField(required=True)
class Meta:
model = Service
fields = '__all__'
exclude = ('user', 'created_at',)
widgets = {
'description': Textarea(attrs={'cols': 65, 'rows': 3, 'class':'stucco'}),
}
class DeleteServiceForm(forms.ModelForm):
class Meta:
model = Service
fields = []
# dashboard views.py
@login_required
def service(request):
service_list = Service.objects.all().filter(user=request.user).order_by('-created_at')
context = {'service_list': service_list}
return render(request, 'dashboard/service.html', context)
@login_required
def delete_service(request, pk):
# some code to check if this object belongs to the logged in user
if request.user.has_perm('dashboard.delete_Service'):
service_to_delete = get_object_or_404(Service, pk=pk)
if request.method == 'POST':
form = DeleteServiceForm(request.POST, instance=service_to_delete)
if form.is_valid(): # checks CSRF
service_to_delete.delete()
messages.warning(request, 'Success, your service order has been removed.')
return redirect('service')
else:
form = DeleteServiceForm(instance=service_to_delete)
return render(request, 'service', {'form': form, 'service_obj': service_to_delete})
else:
return http.Forbidden()
# dashboard / serviceblock.html - utilizes 2 contexts (1st is from service function, to show Service data in panel,
# 2nd is used in the modal popup, confirming deletion and using the DeleteServiceForm context 'service_obj': service_to_delete
'''
{% block services %}
{% for service in service_list %}
<div class="col-md-4">
<div class="panel panel-default text-left">
<div class="panel-header matrix">
<br>
<h4 class="panel-title text-center" style="color: lime;"> SLD Service Order </h4> <br>
</div>
<div class="panel-body">
<p>
Created On: <span class="pull-right text-success"> {{ service.created_at }} </span> <hr>
Service Type: <span class="pull-right text-success"> {% for type in service.service_type.all %} {{ type }} {% endfor %} </span> <hr>
Description: <span class="pull-right text-success"> {{ service.description }} </span>
</p>
</div>
<div class="panel-footer matrix">
<a href="#delservmodal" class="pull-right fa fa-times fa-2x" data-toggle="modal" aria-expanded="false" style="color: red;" title="Delete Service Order"></a> <br>
</div>
</div>
</div>
{% empty %}
<div class="col-md-4 col-md-offset-3">
<br><br> <h4 class="text-center">No service orders opened yet.</h4>
</div>
{% endfor %}
<!-- Start Modal -->
<div id="delservmodal" class="modal fade">
<div class="modal-dialog modal-sm" style="margin-top: 40vh;">
<div class="modal-content">
<div class="modal-body text-center">
<h5 class="text-danger"> Please confirm to delete service order </h5> <hr>
<form method="post" action="{% url 'delete_service' pk=service_obj.pk %}">
{% csrf_token %}
<button type="submit" class="btn btn-sm" data-dismiss="modal"> Delete </button> Delete
</form>
</div>
</div><!-- /.modal-content -->
</div><!-- /.modal-dialog -->
</div><!-- /.modal -->
<!-- End Modal -->
{% endblock %}
'''
答案 0 :(得分：0)
经过多次努力，放弃了为Generic DeleteView编写一个不起作用的自定义视图。我找到的最佳答案是Python Django delete current object