How can I add loading ONLY to the clicked button in vuejs?

Question

There is a table which loops and outputs the data which comes from API. I have added a button inside the table. When you click it, it should send the id of the clicked button and till it recieves the data of the function which needs to be printed, it should be in loading. Here is my code.

<table id="customers">
  <tr>
    <th>{{$t('message.numberReport')}}</th>
    <th>{{$t('message.periodFrom')}}</th>
    <th>{{$t('message.periodTo')}}</th>
    <th>{{$t('message.printButton')}}</th>
  </tr>
  <tr v-for="(item,index) in getReportInfo" :key="index">
    <td>{{ item.id }}</td>
    <td>{{ item.periodFrom }}</td>
    <td>{{ item.periodTo }}</td>
    <td>
      <v-btn
        class="primary"
        :loading="loading"
        :disabled="loading"
        @click="fetchGetReportDetailed(item)"
      >{{ $t('message.printButton')}}</v-btn>
    </td>
  </tr>
</table>

But when I clicked the particular button, all the buttons are getting in loaded mode. How do I fix it? Any suggestion would be deeply appreciated.here is the visual example

mare96 · Accepted Answer · 2020-10-26 16:48:22Z

Using `index` of item in list.

You can register a new variable in your data for example indexClicked .

data () {
    return {
        // Some predefined value, 0 isn't good because index can be 0.
        indexClicked: undefined // Some predefined value
    }
}

And when you click at button you can send index value:

<td>
<v-btn class="primary"
       :loading="loading && indexClicked === index" 
       :disabled="loading && indexClicked === index" 
       @click="fetchGetReportDetailed(item, index)">
       {{ $t('message.printButton') }}
</v-btn>
</td>

And in your fetchGetReportDetailed(item, index) method you need to assign index to this.indexClicked like:

fetchGetReportDetailed (item, index) {
    // Your code
    this.indexClicked = index;
}

This should work. But if you need more information please provide more code.

Note if you have a problem with multiple conditions in :disable you can create a method which will return true or false depends on condition loading && this.indexClicked === index.

Good luck!

Boussadjra Brahim · Accepted Answer · 2019-08-18 14:15:38Z

You're using a single data property for all rows, so in mounted hook add a property called loading to each row like :

mounted(){
   this.getReportInfo=this.getReportInfo.map(rep=>{
               rep.loading=false;
             return rep;
         });
}

and the template do:

   <tr v-for="(item,index) in getReportInfo" :key="index">
                            <td>{{ item.id }}</td>
                            <td>{{ item.periodFrom }}</td>
                            <td>{{ item.periodTo }}</td>
                            <td><v-btn  class="primary" :loading="item.loading" :disabled="loading"  @click="fetchGetReportDetailed(item,index)" >{{ $t('message.printButton')}}</v-btn></td>
                        </tr>

in fetchGetReportDetailed method :

fetchGetReportDetailed(item,index){

....

this.getReportInfo[index].loading=true;
this.$set(this.getReportInfo,index,this.getReportInfo[index])
}

Boussadjra Brahim · Accepted Answer · 2019-08-18 15:01:08Z

2

You could separate the tr that is displaying the data into its own state-full component and call the function from within the component.

This way the state of loading for each item in the array will be local to its own component.

edited Aug 18, 2019 at 15:01

Boussadjra Brahim

90k19 gold badges163 silver badges183 bronze badges

answered Aug 18, 2019 at 14:43

Ali Ihsan

5993 silver badges9 bronze badges

1 Comment

tadvas Over a year ago

I don't understand, why this solution is less voted. But definitely it's the proper and clear one from an architecture perspective. Just devide everything, what is inside of the table to the sub-components and you won't face this issue.

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How can I add loading ONLY to the clicked button in vuejs?

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Using `index` of item in list.

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