Vue Event calendar Block Past Event Creation Example

Sometimes we don't want users to be able to create events in the past or to alter past events. This might be role based in some cases or applied in general to the calendar.

To disable past event creation and manipulation, a couple of things need to be handled:

Invalidate dates that are before today - this takes care of validating event drop and event creation on past dates
Mark past events as fixed - to do this, set the editable property of the event object to false for the events that should remain fixed

Handle past occurrences of recurring events - recurring events are loaded as a single event and the occurrences are generated by the event calendar. Moving the past occurrences need to be handled in the event-update and event-create lifecycle events
Give feedback to the user - optionally, a toast can be displayed to give feedback to the user why an event cannot be dropped, moved and created in the past. For this we can use the event-update-failed and event-create-failed lifecycle events

Get started with this example

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Prevent creating or moving events to past dates in a event calendar — disable past cells, lock past events read-only, and show toast feedback for blocked actions.

<script setup>
import {
  getJson,
  MbscEventcalendar,
  MbscToast,
  setOptions 
} from '@mobiscroll/vue'
import { onMounted, ref } from 'vue'

setOptions({
  locale:  ,
  theme: ' ',
  themeVariant: ' '
})

const today = new Date()
const myEvents = ref([])
const toastMessage = ref('')
const isToastOpen = ref(false)

const myView = {
  calendar: {
    labels: true
  }
}

const myInvalid = [
  {
    recurring: {
      repeat: 'daily',
      until: today
    }
  }
]

function handleEventCreateFailed(args) {
  if (!args.originEvent) {
    toastMessage.value = "Can't create event in the past"
    isToastOpen.value = true
  }
}

function handleEventUpdateFailed(args) {
  if (!args.oldEventOccurrence) {
    toastMessage.value = "Can't move event in the past"
    isToastOpen.value = true
  }
}

function handleEventCreate(args) {
  const oldEvent = args.originEvent
  const start = oldEvent && oldEvent.start ? oldEvent.start : null

  // Handle recurring events
  if (start && start < today) {
    toastMessage.value = "Can't move past event"
    isToastOpen.value = true
    return false
  }
}

function handleEventUpdate(args) {
  const oldEvent = args.oldEvent
  const start = oldEvent && oldEvent.start ? oldEvent.start : null
  const oldEventOccurrence = args.oldEventOccurrence
  const occurrenceStart =
    oldEventOccurrence && oldEventOccurrence.start ? oldEventOccurrence.start : null

  // Handle recurring events
  if ((start && start < today) || (occurrenceStart && occurrenceStart < today)) {
    return false
  }
}

function handleToastClose() {
  isToastOpen.value = false
}

onMounted(() => {
  getJson(
    'https://trial.mobiscroll.com/events/?vers=5',
    (events) => {
      for (const event of events) {
        // Convert dates to date objects
        event.start = event.start ? new Date(event.start) : event.start
        event.end = event.end ? new Date(event.end) : event.end
        // Mark past events as fixed by setting the event.editable property to false
        event.editable = event.start && today < event.start
      }
      myEvents.value = events
    },
    'jsonp'
  )
})
</script>

<template>
  <MbscEventcalendar
    :view="myView"
    :data="myEvents"
    :invalid="myInvalid"
    :clickToCreate="true"
    :dragToCreate="true"
    :dragToMove="true"
    :dragToResize="true"
    @event-create-failed="handleEventCreateFailed"
    @event-update-failed="handleEventUpdateFailed"
    @event-create="handleEventCreate"
    @event-update="handleEventUpdate"
    className="md-disallow-past-event-creation"
  />
  <MbscToast :message="toastMessage" :isOpen="isToastOpen" @close="handleToastClose" />
</template>

<style>
.md-disallow-past-event-creation .mbsc-readonly-event {
  opacity: 0.6;
}
</style>

<script setup lang="ts">
import {
  getJson,
  MbscEventcalendar,
  MbscToast,
  setOptions 
} from '@mobiscroll/vue'
import type {
  MbscCalendarEvent,
  MbscEventcalendarView,
  MbscEventCreateEvent,
  MbscEventCreateFailedEvent,
  MbscEventUpdateEvent,
  MbscEventUpdateFailedEvent
} from '@mobiscroll/vue'
import { onMounted, ref } from 'vue'

setOptions({
  locale:  ,
  theme: ' ',
  themeVariant: ' '
})

const today = new Date()
const myEvents = ref<MbscCalendarEvent[]>([])
const toastMessage = ref<string>('')
const isToastOpen = ref<boolean>(false)

const myView: MbscEventcalendarView = {
  calendar: {
    labels: true
  }
}

const myInvalid = [
  {
    recurring: {
      repeat: 'daily',
      until: today
    }
  }
]

function handleEventCreateFailed(args: MbscEventCreateFailedEvent) {
  if (!args.originEvent) {
    toastMessage.value = "Can't create event in the past"
    isToastOpen.value = true
  }
}

function handleEventUpdateFailed(args: MbscEventUpdateFailedEvent) {
  if (!args.oldEventOccurrence) {
    toastMessage.value = "Can't move event in the past"
    isToastOpen.value = true
  }
}

function handleEventCreate(args: MbscEventCreateEvent) {
  const oldEvent = args.originEvent
  const start = oldEvent && oldEvent.start ? oldEvent.start : null

  // Handle recurring events
  if (start && start < today) {
    toastMessage.value = "Can't move past event"
    isToastOpen.value = true
    return false
  }
}

function handleEventUpdate(args: MbscEventUpdateEvent) {
  const oldEvent = args.oldEvent
  const start = oldEvent && oldEvent.start ? oldEvent.start : null
  const oldEventOccurrence = args.oldEventOccurrence
  const occurrenceStart =
    oldEventOccurrence && oldEventOccurrence.start ? oldEventOccurrence.start : null

  // Handle recurring events
  if ((start && start < today) || (occurrenceStart && occurrenceStart < today)) {
    return false
  }
}

function handleToastClose() {
  isToastOpen.value = false
}

onMounted(() => {
  getJson(
    'https://trial.mobiscroll.com/events/?vers=5',
    (events) => {
      for (const event of events) {
        // Convert dates to date objects
        event.start = event.start ? new Date(event.start) : event.start
        event.end = event.end ? new Date(event.end) : event.end
        // Mark past events as fixed by setting the event.editable property to false
        event.editable = event.start && today < event.start
      }
      myEvents.value = events
    },
    'jsonp'
  )
})
</script>

<template>
  <MbscEventcalendar
    :view="myView"
    :data="myEvents"
    :invalid="myInvalid"
    :clickToCreate="true"
    :dragToCreate="true"
    :dragToMove="true"
    :dragToResize="true"
    @event-create-failed="handleEventCreateFailed"
    @event-update-failed="handleEventUpdateFailed"
    @event-create="handleEventCreate"
    @event-update="handleEventUpdate"
    className="md-disallow-past-event-creation"
  />
  <MbscToast :message="toastMessage" :isOpen="isToastOpen" @close="handleToastClose" />
</template>

<style>
.md-disallow-past-event-creation .mbsc-readonly-event {
  opacity: 0.6;
}
</style>

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