How should v-select, item-text, and item-value be correctly utilized?

Question

How should v-select, item-text, and item-value be correctly utilized?

When I make an API call, the response is returned.

https://i.sstatic.net/AsFzu.png from another perspective.

https://i.sstatic.net/T4vqa.png

I store the result of the API call in a variable called result = [];.

To create a dropdown list, I use v-select with :items="result".

If I want the services.name to be displayed as the text in the dropdown list and services._id to be stored in a variable using v-model, how should I set the item-text and item-value? The services._id will be used as the item-value.

I'm having trouble figuring out how to handle these nested properties.

javascript vue.js vuetify.js

Answer 1

Answer №1

You have the option to gather all the services from multiple sub arrays using a computed property.

This way, you will end up with just one array of objects (instead of an array of arrays within the services property) and can define the item-text and item-value properties!

Check out this sample code:

new Vue({
  el: "#app",
  vuetify: new Vuetify(),
  data: () => {
    return {
      currentItem: null,
      items: [{
          services: [
            {_id: 1,name: 'foo'},
            {_id: 2, name: 'bar'}
          ]
        },
        {
          services: [
            {_id: 1,name: 'foo'}, 
            {_id: 3, name: 'baz'} 
          ]
        }
      ]
    }
  },
  
  computed: {
    allServices(){
      return this.items.reduce((acc, curr) => {
        curr.services.forEach(service => {
          if(!acc.find(x => x._id === service._id)) acc.push(service)
        })
        return acc
      }, [])
    }
  }
})

<script src="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="4b3d3e2e0b796533">[email protected]</a>/dist/vue.js"></script>
<script src="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="b7c1c2d2c3ded1cef78599819983">[email protected]</a>/dist/vuetify.min.js"></script>
<link rel="stylesheet" href="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="d2a4a7b7a6bbb4ab92e0fce4fce6">[email protected]</a>/dist/vuetify.min.css" />

<div id="app" data-app>
  currentItem : {{currentItem}}
  <v-select v-model="currentItem" :items="allServices" item-text="name" item-value="_id"></v-select>
</div>

Answer 2

You have the option to gather all the services from multiple sub arrays using a computed property.

This way, you will end up with just one array of objects (instead of an array of arrays within the services property) and can define the item-text and item-value properties!

Check out this sample code:

new Vue({
  el: "#app",
  vuetify: new Vuetify(),
  data: () => {
    return {
      currentItem: null,
      items: [{
          services: [
            {_id: 1,name: 'foo'},
            {_id: 2, name: 'bar'}
          ]
        },
        {
          services: [
            {_id: 1,name: 'foo'}, 
            {_id: 3, name: 'baz'} 
          ]
        }
      ]
    }
  },
  
  computed: {
    allServices(){
      return this.items.reduce((acc, curr) => {
        curr.services.forEach(service => {
          if(!acc.find(x => x._id === service._id)) acc.push(service)
        })
        return acc
      }, [])
    }
  }
})

<script src="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="4b3d3e2e0b796533">[email protected]</a>/dist/vue.js"></script>
<script src="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="b7c1c2d2c3ded1cef78599819983">[email protected]</a>/dist/vuetify.min.js"></script>
<link rel="stylesheet" href="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="d2a4a7b7a6bbb4ab92e0fce4fce6">[email protected]</a>/dist/vuetify.min.css" />

<div id="app" data-app>
  currentItem : {{currentItem}}
  <v-select v-model="currentItem" :items="allServices" item-text="name" item-value="_id"></v-select>
</div>

Answer 3

Answer №2

To customize the data displayed in a v-select, you can utilize its slots:

<v-select
    label="Services"
    v-model="customVar"
    :items="result"
    item-value="_id"
    item-text="name"
    return-object
  >
    <template v-slot:selection="data">
      {{ data.item.name }}
    </template>
    <template v-slot:item="data">
      {{ data.item.name }}
    </template>
  </v-select>

In addition, by using return-object as shown above:

This will modify the selection behavior to directly return the object instead of the value designated with item-value

This gives you the flexibility to select which variables to extract from the chosen object.

Answer 4

To customize the data displayed in a v-select, you can utilize its slots:

<v-select
    label="Services"
    v-model="customVar"
    :items="result"
    item-value="_id"
    item-text="name"
    return-object
  >
    <template v-slot:selection="data">
      {{ data.item.name }}
    </template>
    <template v-slot:item="data">
      {{ data.item.name }}
    </template>
  </v-select>

In addition, by using return-object as shown above:

This will modify the selection behavior to directly return the object instead of the value designated with item-value

This gives you the flexibility to select which variables to extract from the chosen object.

How should v-select, item-text, and item-value be correctly utilized?

Answer №1

Answer №2

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