What is the best method for transferring properties to the parent component using Vue router?

Question

What is the best method for transferring properties to the parent component using Vue router?

I have a multi-step form that each step has a different header structure.

The only variation in the header among the steps is the wording, which changes as you progress through the steps.

I am looking for a way to achieve this using Vue Router:

      path: '/form',
      name: 'Form',
      component: Form,
      children: [
        {
          path: 'step1',
          component: FormStep1,
          propsForParent: {
            title: "myTitle In Header In Form Component"
          },
        },
        {
          path: 'step2',
          component: FormStep2,
          propsForParent: {
            title: "myTitle is different In Header In Form Component"
          },
        }
      ]

So, when navigating to form/step1, I want the form component to receive the designated title props set in my child configuration above, and so forth for other steps.

I aim to avoid dealing with this logic in the parent component or having the child components communicate with the parent via events or Vuex. I'm seeking a more elegant solution within Vue Router itself.

Any suggestions?

javascript vue.js vue-router

Answer 1

Answer №1

Utilize route meta data:

path: '/form',
name: 'Form',
component: Form,
children: [
  {
    path: 'step1',
    component: FormStep1,
    meta: {
      title: "Custom Title for Step 1"
    },
  },
  {
    path: 'step2',
    component: FormStep2,
    meta: {
      title: "Different Title for Step 2"
    },
  }
]

In your parent component:

computed: {
  title () { this.$route.meta.title }
}

If you want to pass title as a prop to the parent component:

routes: [{
  path: '/form',
  name: 'Form',
  component: Form,
  props (route) => {
    return {
      title: route.meta.title
    }
  }
  children: [ ...

To make title inheritable, use:

const matched = route.matched.slice().reverse().find(route => route.meta.title)
matched.meta.title

Note: Using slice() creates a copy of an array to avoid modifying the original one.

Answer 2

Utilize route meta data:

path: '/form',
name: 'Form',
component: Form,
children: [
  {
    path: 'step1',
    component: FormStep1,
    meta: {
      title: "Custom Title for Step 1"
    },
  },
  {
    path: 'step2',
    component: FormStep2,
    meta: {
      title: "Different Title for Step 2"
    },
  }
]

In your parent component:

computed: {
  title () { this.$route.meta.title }
}

If you want to pass title as a prop to the parent component:

routes: [{
  path: '/form',
  name: 'Form',
  component: Form,
  props (route) => {
    return {
      title: route.meta.title
    }
  }
  children: [ ...

To make title inheritable, use:

const matched = route.matched.slice().reverse().find(route => route.meta.title)
matched.meta.title

Note: Using slice() creates a copy of an array to avoid modifying the original one.

Answer 3

Answer №2

You're so close to the solution! Just remember to emit from the child to the parent using the prop value received.

      path: '/form',
      name: 'Form',
      component: Form,
      children: [
        {
          path: 'step1',
          component: FormStep1,
          props: {
            title: "myTitle In Header In Form Component"
          },
        },
        {
          path: 'step2',
          component: FormStep2,
          props: {
            title: "myTitle is different In Header In Form Component"
          },
        }
      ]


//In FormStep2 and FormStep1 components
created() {
    this.$emit('childinit', this.title);
  },


//Inside Form component
methods: {
    onChildInit( value ){
      this.title = value;
    }
  }

To streamline your code, consider adding another layer of children within your router setup. This will eliminate the need to emit from every child component. Here's an example from a project I'm currently working on, notice the step prop being passed around.

//Within my timelineBase component, I listen for onChildInit, create a method to extract value from the child, and use it in the layout to communicate with pageStepper.

<router-view v-on:childinit="onChildInit" :key="componentKey"></router-view>
<pageStepper :step="pageStepper"></pageStepper>

//Component has these props. props: ['mode','step','componentKey'],

Here are my routes:

const router = new VueRouter({
    routes: [
      {
        path: '/',
        component: Layout,
        children: [
          {
            path: '',
            component: homepage,
            props: { cssClass: '' },
          },
          {
              name: 'addTimeline',
              path: 'timeline',
              props: { mode:'add', step: 1, componentKey: 0 },
              component: timelineBase,
              children:
              [
                  {
                    path: 'add',
                    component: timeline,
                    props: { mode:'add', step: 1, componentKey: 1},
                  },
                  {
                      name: 'updateTimeline',
                      path: ':id/update',
                      component: timeline,
                      props: { mode:'update', step: 1, componentKey: 2 }
                  },
                  {
                      name: 'addEvent',
                      path: ':id/event/add',
                      component: addevent,
                      props: { mode:'add', step: 2, componentKey: 3 }
                  },
                  {
                      name: 'editEvent',
                      path: ':id/event/edit/:event_id',
                      component: editevent,
                      props: { mode:'update', step: 2, componentKey: 4 }
                  },
                  {
                      name: 'previewTimeline',
                      path: ':id/preview',
                      component: preview,
                      props: { step: 3, componentKey: 5 }
                  },
              ]
          },


        ]
      }
    ]
});

Answer 4

You're so close to the solution! Just remember to emit from the child to the parent using the prop value received.

      path: '/form',
      name: 'Form',
      component: Form,
      children: [
        {
          path: 'step1',
          component: FormStep1,
          props: {
            title: "myTitle In Header In Form Component"
          },
        },
        {
          path: 'step2',
          component: FormStep2,
          props: {
            title: "myTitle is different In Header In Form Component"
          },
        }
      ]


//In FormStep2 and FormStep1 components
created() {
    this.$emit('childinit', this.title);
  },


//Inside Form component
methods: {
    onChildInit( value ){
      this.title = value;
    }
  }

To streamline your code, consider adding another layer of children within your router setup. This will eliminate the need to emit from every child component. Here's an example from a project I'm currently working on, notice the step prop being passed around.

//Within my timelineBase component, I listen for onChildInit, create a method to extract value from the child, and use it in the layout to communicate with pageStepper.

<router-view v-on:childinit="onChildInit" :key="componentKey"></router-view>
<pageStepper :step="pageStepper"></pageStepper>

//Component has these props. props: ['mode','step','componentKey'],

Here are my routes:

const router = new VueRouter({
    routes: [
      {
        path: '/',
        component: Layout,
        children: [
          {
            path: '',
            component: homepage,
            props: { cssClass: '' },
          },
          {
              name: 'addTimeline',
              path: 'timeline',
              props: { mode:'add', step: 1, componentKey: 0 },
              component: timelineBase,
              children:
              [
                  {
                    path: 'add',
                    component: timeline,
                    props: { mode:'add', step: 1, componentKey: 1},
                  },
                  {
                      name: 'updateTimeline',
                      path: ':id/update',
                      component: timeline,
                      props: { mode:'update', step: 1, componentKey: 2 }
                  },
                  {
                      name: 'addEvent',
                      path: ':id/event/add',
                      component: addevent,
                      props: { mode:'add', step: 2, componentKey: 3 }
                  },
                  {
                      name: 'editEvent',
                      path: ':id/event/edit/:event_id',
                      component: editevent,
                      props: { mode:'update', step: 2, componentKey: 4 }
                  },
                  {
                      name: 'previewTimeline',
                      path: ':id/preview',
                      component: preview,
                      props: { step: 3, componentKey: 5 }
                  },
              ]
          },


        ]
      }
    ]
});

Answer 5

Answer №3

There's room for a slight enhancement to execute it in a more refined manner.

In line with Squiggs.' suggestion, we could trigger the childinit in each child component, but continuously including the emit code in every child component may become laborious.

Nonetheless, a viable solution could involve using a mixin. By creating a mixin that emits the childinit along with its properties, and then importing and employing this mixin in each child component, we can address this issue effectively.

// mixin
export default {
  props: {
    title: {
      type: String,
      default: '',
    },
  },
  created() {
    this.$emit('childinit', this.title)
  },
}

// parent
<template>
  <div class="wrapper">
    <router-view @childinit="childInit"/>
  </div>
</template>

<script>
export default {
  data() {
    return {
      title: '',
    }
  },
  methods: {
    childInit(title) {
      this.title = title
    },
  },
}
</script>


// child
<script>
import TitleMixin from './mixins'

export default {
  mixins: [TitleMixin],
}
</script>

Answer 6

There's room for a slight enhancement to execute it in a more refined manner.

In line with Squiggs.' suggestion, we could trigger the childinit in each child component, but continuously including the emit code in every child component may become laborious.

Nonetheless, a viable solution could involve using a mixin. By creating a mixin that emits the childinit along with its properties, and then importing and employing this mixin in each child component, we can address this issue effectively.

// mixin
export default {
  props: {
    title: {
      type: String,
      default: '',
    },
  },
  created() {
    this.$emit('childinit', this.title)
  },
}

// parent
<template>
  <div class="wrapper">
    <router-view @childinit="childInit"/>
  </div>
</template>

<script>
export default {
  data() {
    return {
      title: '',
    }
  },
  methods: {
    childInit(title) {
      this.title = title
    },
  },
}
</script>


// child
<script>
import TitleMixin from './mixins'

export default {
  mixins: [TitleMixin],
}
</script>

Answer 7

Answer №4

Another option is to utilize Vuex or localStorage for handling props. Keep in mind that values stored in Vuex will be cleared upon refreshing.

Answer 8

Another option is to utilize Vuex or localStorage for handling props. Keep in mind that values stored in Vuex will be cleared upon refreshing.

What is the best method for transferring properties to the parent component using Vue router?

Answer №1

Answer №2

Answer №3

Answer №4

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