How can I reset dropdown data if modal closed on vue component? - vue.js

Question

My case like this
I have two component, parent and child component
My parent component like this :
<template>
...
<div class="row">
...
<location-select level="continentList" type="1"/>
...
<location-select level="countryList" type="2"/>
...
<location-select level="cityList" type="3"/>
...
</div>
</template>
<script>
...
export default{
...
}
</script>
The parent component is a modal bootstrap
My child component like this :
<template>
<select class="form-control" v-model="selected" #change="changeLocation">
<option value="0" disabled>Select</option>
<template v-for="option in options">
<option v-bind:value="option.id" >{{ option.name }}</option>
</template>
</select>
</template>
<script>
...
export default{
props: ['level','type'],
data() { return { selected: '' };},
computed:{
...mapGetters([
'getContinentList', 'getCountryList','getCityList'
]),
options(){
const n = ['getContinentList', 'getCountryList','getCityList']
return this[n[this.type-1]]
}
},
methods:{
...mapActions([
'getLocationList'
]),
changeLocation(event){
if(this.type==1){
this.getLocationList([{type:2},{level:'countryList'}])
this.getLocationList([{type:3},{level:'cityList'}])
}else if(this.type==2){
this.getLocationList([{type:3},{level:'cityList'}])
}
}
},
created() {
if(this.type==1)
this.getLocationList([{type:1},{level:'continentList'}])
if(this.type==2 && this.selected!='')
this.getLocationList([{type:2},{level:'countryList'}])
if(this.type==3 && this.selected!='')
this.getLocationList([{type:3},{level:'cityList'}])
},
mounted() {
$(this.$parent.$refs.modal).on('hidden.bs.modal', (e) => {
Object.assign(this.$data, this.$options.data())
})
},
};
</script>
If the modal show, I select continent, country and city. Then I close the modal
After that I show the modal again. Then I select country and city first, the data is still exist
I want to reset the data. So if I open modal again, before I choose continent, country and city data is not showing
I try :
Object.assign(this.$data, this.$options.data())
and this :
Object.assign(this.$data,this.$options.data.call(this))
and this too :
this.$forceUpdate()
when modal hidden
But, it does not work
Seems it must update data computed:{...}. But I'm still confused to do it
How can I solve this problem?

Answer 1

Have you tried reseting the selected data attribute in mounted lifecycle hook?
...
mounted() {
let $vm = this;
$(this.$parent.$refs.modal).on('hidden.bs.modal', (e) => {
$vm.selected = '';
});
},
...

Answer 2

Just v-if the modal component and it will rerender/recalculate everything when toggled.
Parent of Parent component:
<template>
<div class="parent-of-parent">
<your-modal-component v-if="isModalOpened" #close="closeModal"></your-modal-component>
</div>
</template>
<script>
export default{
data() {
return { isModalOpened: false };
},
methods: {
openModal() {
this.isModalOpened = true;
}, // method to open it
closeModal() {
this.isModalOpened = false;
}, // method to attach to emit event from modal on close
},
};
</script>
Be sure to attach click event on the icon you click for close or whatever.
And attach a method to the event which emits like this.
this.$emit('closeModal');
If you have problem animating the modal use <transition>
<transition name="fadeIn">
<your-modal-component v-if="isModalOpened" #close="closeModal"></your-modal-component>
</transition>