VueJs and Laravel - multiple select fields

Question

Using Laravel 5.4 and Vuejs 2.1

In code I have a select field with two input fields (quantity and stock) in tr (Table Row). Table Row with the fields can be dynamically added as much as user is needed, this is the code:

<tbody id="loads-content">
  <tr v-for="(item, index) in items">
     <td>
         <select v-model="item.load_id" name="load_id[]" class="loads" v-on:change="getLoadStock()">
             <option v-for="load in loads" :value="load.id" :id="load.id">{{load.name}}</option>
         </select>
     </td>
     <td><input type="text" v-model="item.quantity" name="quantity[]" class="input is-hovered qty"></td>
     <td><input type="text" v-model="item.stock" class="input is-hovered stock" disabled readonly="true"></td>
     <td>
         <button type="button" class="button is-danger remove" @click="items.splice(index, 1)"><i class="fa fa-minus-square-o" aria-hidden="true"></i></button>
     </td>
     </tr>
     <a @click="addLine" class="button is-success"><i class="fa fa-plus-square-o" aria-hidden="true"></i></a>
</tbody>

When you choose some value from select field I need to populate the STOCK input field with stock data from the database. For that I used an API call. I made something like this:

methods: {
        addLine() {
            this.items.push({
                load_id: '',
                quantity: '',
                stock: ''
            })
        },

        getLoadStock(){
            var loadsContent = $('#loads-content');
            var tr = loadsContent.parent().parent();
            var id = tr.find('.loads').val();

            axios.get('/api/load/' + id)
                    .then(function(response) {
                        tr.find('.stock').val(response.data.stock);
                    })
                    .catch(function(error) {
                        console.log(error)
                    });

        },

This code is not working as expected.

The goal is to fetch actual stock for current choosen load, to see how much quantity can you enter in the input field for quantity.

I am open for any suggestions, if anyone has a better approach and solution please help.

Thanks in advance! :)

David K. Hess · Accepted Answer · 2017-02-18 15:14:52Z

3

You are mixing two different and incompatible ways of building a web app: Vue.js and jQuery.

When using Vue, you should not be manipulating the DOM directly. You should instead be binding the DOM elements to Vue model attributes. Then, if you need a DOM element to reflect a change, you change the model – not the DOM.

So for instance, you would want something like this (note adding index as an argument to getLoadStock):

     <select v-model="item.load_id" name="load_id[]" class="loads" v-on:change="getLoadStock(index)">
         <option v-for="load in loads" :value="load.id" :id="load.id">{{load.name}}</option>
     </select>

and

    getLoadStock(index){
        axios.get('/api/load/' + this.items[index].load_id)
                .then(function(response) {
                    this.items[index].stock = response.data.stock;
                })
                .catch(function(error) {
                    console.log(error)
                });

    },

edited Feb 18, 2017 at 15:14

answered Feb 17, 2017 at 23:14

David K. Hess

17.3k2 gold badges53 silver badges77 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

MileDev Over a year ago

you nailed it! Thank you very much (Also thanks for explanation in the second sentence). Have a nice weekend :)

Collectives™ on Stack Overflow

VueJs and Laravel - multiple select fields

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related