使用 Django Tables2 为对话框添加点击事件

Putting a click event for a dialogue box with Django Tables2

我正在尝试使用 Django Tables2 创建一个点击事件,这样每当有人点击一行中的删除 link 时,它都会在删除该行之前创建一个确认对话框。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)

tables.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>

由于某些原因,我无法使出现确认对话框的onclick事件发生,直接删除。我假设它在 tables.py 中写错了,但我不知道在那种情况下如何正确地写它。或者我需要做其他事情吗?

查看呈现的 html,例如使用您的浏览器检查上下文菜单选项。我想你可以看到你使用的双引号有问题。

onclick 属性用双引号括起来,但作为参数传递给 confirm() 的消息也用双引号括起来。这会导致您的浏览器将该属性解释为`onclick="return confirm(" 并忽略它无法理解的乱码。

您可以通过使用单引号将消息参数括在 confirm() 中来解决此问题,方法是在您使用的语法 (\') 中转义它们,或者使用像这样的三重引号:

template_code = '''
<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>'''