Binding Object to Vue multi-select

Question

I have a table with two columns(Location and Users). The location is static information but the users is a multi-select using Vue-Select. I need to shows users currently selected for a location on page load. I grab that information from a database. I also need to be able to change the selected users of a location by using a multi-select that shows all users. Example Mock

Vue Outline

<table>
    <thead>
    <tr>
        <th class="col-xs-2">Locations</th>
        <th class="col-xs-8">Users</th>
    </tr>
    </thead>
    <tbody>
        <tr v-for="(row, index) in rows" v-bind:key="index">
            <td>
              <span>{{ row.location }}</span>
            </td>
            <td>
                <v-select multiple v-model="row.users">
                <option v-for="user in allUsers" :key="user.id" :value="user.id">{{ user.name }}</option>
                </v-select>
            </td>
        </tr>
    </tbody>
</table>

Vue

var app = new Vue({
    el: '#el',
    data() {
        return {
          errors: [],
          loading: false,
          rows: this.assignments,
          allUsers: this.users
        }
    },
   props: {
     assignments: Array,
     users: Array
   },
})

Example of how rows are returned from database

    [{
    "locations":[
      { "id":1,
        "name":"SomePlace, CA",
        "users": [
          {"id":1, "name":"Person One"},
          {"id":2, "name":"Person Two"}
        ]
      },
      { "id":2,
        "name":"AnotherPlace, CA",
        "users": [
          {"id":3, "name":"Person Three"}
        ]
      }
    ]
  },
  {
    "locations":[
      { "id":1,
        "name":"SomePlace, CA",
        "users": [
          {"id":1, "name":"Person One"},
          {"id":2, "name":"Person Two"}
        ]
      },
      { "id":2,
        "name":"AnotherPlace, CA",
        "users": [
          {"id":3, "name":"Person Three"}
        ]
      }
    ]
  }]

Example of how all users are returned from database

[
    ["id":1, "name":"Person One"],
    ["id":2, "name":"Person Two"],
    ["id":3,"name":"Person Three"],
]

Answer 1

I had moved the data coming via props directly to data object, since your rows property has one item which contains locations array, i looped through the first item rows[0] and i put row as the select options :options="row" and for the second column i looped through the user of the selectedLocation :

Vue.component('v-select', VueSelect.VueSelect)

var app = new Vue({
  el: '#app',
  data() {
    return {
      errors: [],
      loading: false,
      rows: [{
          "locations": [{
              "id": 1,
              "name": "SomePlace, CA",
              "users": [{
                  "id": 1,
                  "name": "Person One"
                },
                {
                  "id": 2,
                  "name": "Person Two"
                }
              ]
            },
            {
              "id": 2,
              "name": "AnotherPlace, CA",
              "users": [{
                "id": 3,
                "name": "Person Three"
              }]
            }
          ]
        },
        {
          "locations": [{
              "id": 1,
              "name": "SomePlace, CA",
              "users": [{
                  "id": 1,
                  "name": "Person One"
                },
                {
                  "id": 2,
                  "name": "Person Two"
                }
              ]
            },
            {
              "id": 2,
              "name": "AnotherPlace, CA",
              "users": [{
                "id": 3,
                "name": "Person Three"
              }]
            }
          ]
        }
      ],
      allUsers: this.users
    }
  },
  props: {
    assignments: Array,
    users: Array
  },
})

<table>
  <thead>
    <tr>
      <th class="col-xs-2">Locations</th>
      <th class="col-xs-8">Users</th>
    </tr>
  </thead>
  <tbody>
    <tr v-for="(row, index) in rows[0].locations" v-bind:key="index">
      <td class="lead-locations">
        {{row.name}}
      </td>
      <td class="lead-users">
        <v-select multiple v-model="row.users" label="name">
        </v-select>
      </td>
    </tr>
  </tbody>
</table>

for demo check this code