allow eventOverlap for background events only in fullcalendar

问题

Is there a way to avoid event overlapping; like the eventOverlap: false inside the fullcalendar config, but on other hand allow overlap for background events?

I want to render some events as background events into my calendar, just as info (that there are already some events in other calendars) but allow me to create, move or resize my new event on top.

But all other events are not allowed to overlap inside this calendar.

I just try this, without success:

   calendar:{
      editable: true,
      contentHeight: 'auto',
      theme: true,
      firstDay: 1,
      eventOverlap: false,
      nowIndicator: true,
      allDaySlot: false,
      slotDuration: '01:00:00',
      snapDuration: '00:00:01',
      axisFormat: 'HH:mm',
      timeFormat: 'HH:mm',
      timezone: 'local',
      views: {
        listThreeDay: {
          type: 'list',
          duration: { days: 3 },
          buttonText: 'list 3 day'
        },
        listOneWeek: {
          type: 'list',
          duration: { weeks: 1 },
          buttonText: 'list week'
        }
      },
      businessHours: {
        start: '06:00',         // a start time (6am in this example)
        end: '18:00',           // an end time (6pm in this example)
        dow: [ 1, 2, 3, 4, 5 ]  // days of week (here monday till friday)
      },
      events: [
        {
          start: '00:00:00+02:00',
          end: '08:00:00+02:00',
          color: 'red',
          rendering: 'background',
          dow: [1],
          overlap: true,
        }
      ],
     ...

Following picture shows what I need:

background events (the red)
normal events (blue) overlapping background events
normal events (blue) do not overlap on other normal events

回答1:

You can use quite a simple custom function on the eventOverlap callback to achieve this. Simply test whether the event that is being overlapped onto is a background event or not:

eventOverlap: function(stillEvent, movingEvent) {
    return stillEvent.rendering == "background";
}

You also don't need to specify overlap: true on any of your individual background events.

A working example can be seen here: http://jsfiddle.net/sbxpv25p/18/

https://fullcalendar.io/docs/event_ui/eventOverlap/ explains about the use of a custom function for this callback.

N.B. You may already realise this, but it's worth pointing out: if you plan to save the newly dragged/resized events back to your database, you'll need to double-check the overlap rules on the server as well, since any rules written in JavaScript can be easily disabled or bypassed by anyone with a knowledge of the browser's developer tools. These kind of front-end rules are useful for user-friendliness only - they can't be 100% relied upon to validate your data.

来源：https://stackoverflow.com/questions/46238280/allow-eventoverlap-for-background-events-only-in-fullcalendar

标签

javascript

fullcalendar