Utilize a separate component for displaying every Vuetify expansion panel entry

Utilizing Vuetify's v-expansion-panel component (also known as an accordion), I am attempting to display one panel for each task in a list. The template of the parent component is as follows:

<div v-if="tasks.length">
  <v-expansion-panels>
    <task
      v-for="(task, index) in tasks"
      :task="task"
      :key="index"
    />
  </v-expansion-panels>
</div>

The child task component then renders the content of each panel like this:

<template>
  <v-expansion-panel>

    <v-expansion-panel-header>
    <!-- render panel header content -->
    </v-expansion-panel-header>

    <v-expansion-panel-content>
    <!-- render panel body content -->
    </v-expansion-panel-content>

  </v-expansion-panel>
</template>

I find it convenient to display the header and body in a single component since they rely on the same data. However, I am not fond of having the markup for the expansion panels split between two components. As a result, when I perform unit tests on the child task component, I receive a warning message:

[Vuetify] The v-expansion-panel component must be used inside a v-expansion-panels

Is there a way for me to consolidate all the expansion panel markup into the parent component while still generating the content for v-expansion-panel-header and v-expansion-panel-content in the child task component?

Answer №1

Is it possible to consolidate all expansion panels and utilize v-for in task.vue?

<task :tasks="tasks" />

Task.vue

 <template>
    <v-expansion-panels 
      <v-expansion-panel
         v-for="(task, index) in tasks"
         :task="task"
         :key="index">>
    
        <v-expansion-panel-header>
        <!-- render panel header content -->
        </v-expansion-panel-header>
    
        <v-expansion-panel-content>
        <!-- render panel body content -->
        </v-expansion-panel-content>
    
      </v-expansion-panel>
    </v-expansion-panels>
    </template>

Answer №2

If you find yourself needing multiple root elements in Vue 2, one option is to utilize render functions. Although it may be a bit more complex, it can still be achieved successfully. Check out this helpful link for more information.

Another approach would be to make use of the vue-fragment component (you can find the npm page here) which simplifies the process for you as shown below:

<template>
  <fragment>
    <v-expansion-panel-header>
    <!-- insert panel header content here -->
    </v-expansion-panel-header>

    <v-expansion-panel-content>
    <!-- insert panel body content here -->
    </v-expansion-panel-content>
  </fragment>
</template>

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