在 Nuxt 中，如何将数据从布局传递到页面？

Question

For example, in my /layouts/sidebar.vue I have the following code:

<template>
    <div class="mainContainer">
      <nuxt :date-sidebar="'This is from sidebar'"/>
    </div>
</template>

I want to pass the value of date-sidebar from layouts to /pages/Request/index.vue and eventually to /components/RequestTable.vue but I'm just currently testing it by passing static strings with the following code:

<template>
  <div>
    <RequestTable :date-requested="'something'"/>
    {{ this.dateSidebar }} //data from sidebar that should receive something also tried just {{dateSidebar}}
  </div>
</template>

<script>
export default{
    props:['dateSidebar']
}
</script>

I can receive the static value from /page/Request/index.vue to my /components/Request/RequestTable.vue but I can't receive the data from the /layouts/sidebar.vue to my /pages/Request/index .

So my question as the title suggest would be, how do I pass date-sidebar from /layouts/sidebar.vue to /pages/Request/index .

Answer 1

As far as I know, this only works with nuxt-link (in pages so) as shown here and not nuxt

pages/child.vue

<template>
  <nuxt-child :test="'RESOLVE_PLZ'"/>
</template>

pages/child/index.vue

<script>
export default {
  props: ["test"],
  mounted() {
    console.log(this.test) // RESOLVE_PLZ
  }
}
</script>

It is kinda logical because the default layout is not really aimed towards this kind of usage. If you need something dynamic, it's usually going the other way around (emitting to the layout) or simply using Vuex (mainly because of not having to "emit up" several components up).

---

You could also do some hacky things like this

child.vue

<template>
  <div>
    {{ dateSidebar }}
  </div>
</template>

<script>
export default {
  computed: {
    dateSidebar() {
      return this.$parent.$attrs['date-sidebar']
    }
  },
}
</script>

But this is not that common, hence probably not the way to do it.

Answer 2

You need to use the nuxtChildKey props in your child properties. From the layout, bind the nuxt-child-key instead of :date-sidebar .

You may want to pass an object instead of a string so you can pass more data. So your layout/sidebar would look like...

<template>
    <div class="mainContainer">
      <nuxt :nuxt-child-key="'This is from sidebar'"/>
    </div>
</template>

On the child page...

<template>
  <div>
    <RequestTable :date-requested="'something'"/>
    {{ this.dateSidebar }} //data from sidebar that should receive something also tried just {{dateSidebar}}
  </div>
</template>

<script>
export default{
    props:['nuxtChildKey'], 
mounted(){
console.log(this.nuxtCHildKey, 'nck')
}
}
</script>

And there's a documentation available here... nuxt-child-key