我正在尝试使用Django Tables2创建click事件，以便每当有人单击行中的删除链接时，都会在删除行之前创建一个对话框以进行确认。这是我的代码：

models.py

class Schedules(models.Model):
    course_name = models.CharField(max_length=128, choices=COURSE_NAME_CHOICES, default='a-plus')
    location = models.CharField(max_length=128, choices=LOCATION_CHOICES, default='south_plainfield')
    room = models.CharField(max_length=128, choices=ROOM_CHOICES, default='A')
    start_date = models.DateField(auto_now=False, auto_now_add=False, default=datetime.date.today)
    start_time = models.CharField(max_length=128, choices=START_TIME_CHOICES, default='eight-thirty am')
    end_time = models.CharField(max_length=128, choices=END_TIME_CHOICES, default='eight-thirty am')
    instructor = models.CharField(max_length=128, choices=INSTRUCTOR_CHOICES, default='adewale')
    total_hours = models.CharField(max_length=128, choices=TOTAL_HOURS_CHOICES, default='six')
    hours_per_class = models.CharField(max_length=128, choices=HOURS_PER_CLASS_CHOICES, default='four_and_half')
    frequency = models.CharField(max_length=128)
    status = models.CharField(max_length=128, choices=STATUS_CHOICES)
    interval = models.CharField(max_length=128, choices=INTERVAL_CHOICES, default='1 day')
    initiated_by = models.CharField(max_length=128, null=True)
    schedule_id = models.IntegerField(default=0)

table.py

class ScheduleListTable(tables.Table):
    change = tables.TemplateColumn('<a href="/schedule/update_schedule/{{ record.id }}">Update</a> / Cancel / Event / '
                                   '<a href="/schedule/delete_schedule/{{ record.id }}" 
                                   onclick="return confirm("Are you sure you want to delete this?")">Delete</a>',
                                   verbose_name=u'Change', )
    class Meta:
        model = Schedules
        fields = ('id', 'course_name', 'start_date', 'start_time', 'hours_per_class', 'instructor', 'change',)
        attrs = {"class": "paleblue"}

views.py

def schedule_List(request):
    context_dict = {}
    schedule_list = Schedules.objects.order_by('start_date')
    table = ScheduleListTable(schedule_list)
    context_dict['table'] = table
    return render(request, "schedule/schedule_list.html", context_dict)

schedule_list.html

<div id="schedule_list_table">
    {% if table %}
        {% render_table table %}
    {% endif %}
</div>

由于某种原因，我无法使显示确认对话框的onclick事件直接进入删除操作。我假设它在table.py中写错了，但是在这种情况下我不知道如何正确地写它。还是我需要做其他事情？