Unable to call trigger method in sub component within a slot due to issues with $refs functionality

I have customized a modal component with the following template:

<template>
  <my-base-modal ref="BaseModal" :width="1000">
    <template v-slot:header>Details</template>
    <template v-slot:body>
        <detail-card ref="DetailCard"></detail-card>
    </template>
  </my-base-modal>
</template>

This setup creates a base modal that overrides the slots for header and body. The content of the body slot is a sub-component which needs to fetch some data.

I attempted to open and load the content of this modal using the method below:

open (id) {
   this.$refs.DetailCard.load(id)
   this.$nextTick(() => {
     this.$refs.BaseModal.open()
   })
 }

However, this.$refs.DetailCard always returns as undefined. I suspect this is because the reference to DetailCard is defined within the body slot of the <base-modal> component?

How can I execute a function on the <detail-card> component in this scenario, without using EventBus or passing props into it?

Answer №1

It appears that the DOM may not be fully rendered until the BaseModal's open method is called during runtime. This could explain why this.$refs.DetailCard is returning undefined, as the nested component may not have been rendered yet within the body slot of your component.

To address this issue, consider ensuring that the DOM is already rendered by using a technique like v-show instead of v-if, as suggested in the comments.

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