Reputation: 75
I was trying to use vuedraggable into my Notebook application and i get this error when i add the draggable component. Here is the code and the error. I would appreciate the help.
Here is the error message i am getting.
Error: draggable element must have an item slot at computeNodes (webpack-internal:///./node_modules/vuedraggable/dist/vuedraggable.umd.js:4483:11) at computeComponentStructure (webpack-internal:///./node_modules/vuedraggable/dist/vuedraggable.umd.js:4525:15) at Proxy.render (webpack-internal:///./node_modules/vuedraggable/dist/vuedraggable.umd.js:4644:32) at renderComponentRoot (webpack-internal:///./node_modules/@vue/runtime-core/dist/runtime-core.esm-bundler.js:965:44) at componentEffect (webpack-internal:///./node_modules/@vue/runtime-core/dist/runtime-core.esm-bundler.js:4382:53) at reactiveEffect (webpack-internal:///./node_modules/@vue/reactivity/dist/reactivity.esm-bundler.js:71:24) at effect (webpack-internal:///./node_modules/@vue/reactivity/dist/reactivity.esm-bundler.js:46:9) at setupRenderEffect (webpack-internal:///./node_modules/@vue/runtime-core/dist/runtime-core.esm-bundler.js:4365:89) at mountComponent (webpack-internal:///./node_modules/@vue/runtime-core/dist/runtime-core.esm-bundler.js:4324:9) at processComponent (webpack-internal:///./node_modules/@vue/runtime-core/dist/runtime-core.esm-bundler.js:4284:17)
I am not using the vuedraggable component on my app.vue instead am passing it as a component from my todo.vue file.
Any help would be great. Thank you
Upvotes: 5
Views: 20522
Reputation: 886
Just surround your item in a <template #item>
tag, the error is saying to you that inside a draggeable
component must always be a slot called item
.
In Vue 3 you assign a template to a slot by using #{slotName}
Check this demo from the docs
example:
<draggable
:list="list"
:disabled="!enabled"
item-key="name"
class="list-group"
ghost-class="ghost"
:move="checkMove"
@start="dragging = true"
@end="dragging = false"
>
<template #item="{ element }">
<div class="list-group-item" :class="{ 'not-draggable': !enabled }">
{{ element.name }}
</div>
</template>
</draggable>
Upvotes: 19
Reputation: 663
If you are using Vue3 and/or you have nested component then you can implement it as following.
<draggable v-model="bookmarks" ghost-class="ghost" group="people" @start="drag=true" @end="dragEnded" :move="checkMove" item-key="id">
<template #item="{element}">
<bookmark-card :bookmark="element">
</bookmark-card>
</template>
</draggable>
The key part is adding <bookmark-card :bookmark="element">
as :bookmark cast into component.
Then it can be used inside of component as:
<template>
<li class="p-2 mb-3 m-1.5 flex items-center bg-gray-900 shadow rounded-lg single-bookmark hover:bg-green-500">
<div class="items-center">
<button @click="editBookmark" type="button" class="bookmark-edit h-6 w-6 text-white bg-green-700 dark:hover:bg-green-800 font-medium rounded-lg text-sm text-center dark:bg-green-600 dark:hover:bg-gray-600">
<svg class="w-4 h-4 dark:text-white m-2" fill="none" stroke="currentColor" stroke-width="1.5" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg" aria-hidden="true">
<path stroke-linecap="round" stroke-linejoin="round" d="M9.594 3.94c.09-.542.56-.94 1.11-.94h2.593c.55 0 1.02.398 1.11.94l.213 1.281c.063.374.313.686.645.87.074.04.147.083.22.127.324.196.72.257 1.075.124l1.217-.456a1.125 1.125 0 011.37.49l1.296 2.247a1.125 1.125 0 01-.26 1.431l-1.003.827c-.293.24-.438.613-.431.992a6.759 6.759 0 010 .255c-.007.378.138.75.43.99l1.005.828c.424.35.534.954.26 1.43l-1.298 2.247a1.125 1.125 0 01-1.369.491l-1.217-.456c-.355-.133-.75-.072-1.076.124a6.57 6.57 0 01-.22.128c-.331.183-.581.495-.644.869l-.213 1.28c-.09.543-.56.941-1.11.941h-2.594c-.55 0-1.02-.398-1.11-.94l-.213-1.281c-.062-.374-.312-.686-.644-.87a6.52 6.52 0 01-.22-.127c-.325-.196-.72-.257-1.076-.124l-1.217.456a1.125 1.125 0 01-1.369-.49l-1.297-2.247a1.125 1.125 0 01.26-1.431l1.004-.827c.292-.24.437-.613.43-.992a6.932 6.932 0 010-.255c.007-.378-.138-.75-.43-.99l-1.004-.828a1.125 1.125 0 01-.26-1.43l1.297-2.247a1.125 1.125 0 011.37-.491l1.216.456c.356.133.751.072 1.076-.124.072-.044.146-.087.22-.128.332-.183.582-.495.644-.869l.214-1.281z"></path>
<path stroke-linecap="round" stroke-linejoin="round" d="M15 12a3 3 0 11-6 0 3 3 0 016 0z"></path>
</svg>
</button>
<span class="absolute text-white font-small text-sm">{{ bookmark.bookmark_name}}</span>
</div>
</li>
</template>
<script>
import Avatar from "vue3-avatar";
export default {
components: {
Avatar,
},
props: {
bookmark: {
type: Object,
default: () => ({})
}
},
methods: {
editBookmark() {
// To exit draggable component and reach App.vue parent method, add $parent.$parent twice
this.$parent.$parent.editBookmarkParent(this.bookmark);
},
}
}
</script>
Upvotes: 1