javascript - Fullcalendar drop外部事件恢复功能

Question

我正在尝试使用 fullcalendar 库创建一个事件日历，并遵循演示external-dragging，我理解这个概念，只是想知道如何执行恢复函数如果我按取消，放置事件将返回到其原始位置。

我正在使用 sweetalert2 库替换默认的 javascript 警报，下面是我的代码。

$('#calendar').fullCalendar({
            header: {
                left: 'prev,next today',
                center: 'title',
                right: 'month'
            },
            editable: true,
            eventConstraint: {
            start: moment().format('YYYY-MM-DD'),
            end: '2100-01-01' // hard coded goodness unfortunately
            },
            droppable: true, // this allows things to be dropped onto the calendar
            drop: function() {
                // is the "remove after drop" checkbox checked?

                if ($('#drop-remove').is(':checked')) {
                    // if so, remove the element from the "Draggable Events" list
                    $(this).remove();

                }

                swal({
                    title: 'Are you sure?',
                    text: "You want to change this event schedule?",
                    type: 'warning',
                    showCancelButton: true,
                    confirmButtonColor: '#3085d6',
                    cancelButtonColor: '#d33',
                    confirmButtonText: 'Yes, proceed'
                  }).then(function (result) {
                    if (result.value) {


                      swal(
                        'Success!',
                        'The event schedule was successfully changed to ',
                        'success'
                      )



                    }else{

                      revertFunc();

                    }
                  })
                 //end of drop  

            },

revertFunc(); 仅在 eventDrop 上可用，但我不知道如何在 drop 事件上实现它，任何建议都是太棒了

Answer 1

“drop”回调中没有“revertFunc()”。它根本不存在。

我的解决方法(FullCalendar v4)是管理 EventLeave 和 EventReceive:在第一个中保存原始事件，在第二个中删除新事件并恢复原来的。

这是一个简化版本:

// to map original events (event.id => event)
_oldEventsInfo = new Map();

eventLeaveHandler(info) {
    _oldEventsInfo.set(info.event.id, info);
}

eventReceiveHandler(info) {
    if (/* for any reason cannot be moved */) {
        this.revert(info);
    } else {
        _oldEventsInfo.delete(info.event.id);
    }
}

revert(info) {
    var oldInfo = _oldEventsInfo.get(info.event.id);
    if (oldInfo) {
        // build a new event to restore in the original calendar
        var oldCalendar = oldInfo.event._calendar;
        var restoredEvent = {
            id: oldInfo.event.id,
            // etc
        };
        oldCal.addEvent(restoredEvent);
        // delete the destination (dragged) event from dest calendar
        info.event._calendar.getEventById(info.event.id).remove();
        // remove the old event from my saved
        _oldEventsInfo.delete(info.event.id);
    }
}