Validate Child component Vue vee-validate - vue.js

Question

App (parent)
Hi I have these component (Child)
TextComponent
InfoErrorForm
When I press submit from the parent component App is not validate this form. So I tried to validate with inject $validator in the child component (TextComponent), and provide but not show message error .
If you can help me to validate children form inisde parent component.
This is my code
AppComponent
<template>
<div>
<!-- Form validar numero max input -->
<form :class="{'was-validated': error_in_form_save_progress}" >
<card-shadow v-for="(texto,key) in sections_template.texts" :key="key" >
<texto-component
:orden="key+2"
v-model="sections_template.texts[key].content"
:tituloComponente="texto.title"
:inputName="texto.title" >
<template slot="section_show_error_validate_input">
<info-error-form
:listErrors='errors'
:name_field = "texto.title"
v-show = "error_in_form_save_progress" >
</info-error-form>
</template>
</texto-component>
</card-shadow>
</form>
<div class="row foot_button" >
<div class="offset-md-3 col-md-3">
<button class="btn" #click.prevent="save_progrees"> Guardar Cambios</button>
</div>
</div>
</div>
</template>
<script>
export default {
provide() {
return {
$validator: this.$validator,
};
},
data: function(){
return {
sections_template: {
texts:[
{
section_template_id: 1,
type: "texto",
title: "fundamentacion",
content: ""
},
{
section_template_id: 2,
type: "texto",
title: "sumilla",
content: ""
}
] },
error_in_form_save_progress: true
}
},
methods:{
save_progrees(){
this.$validator.validateAll().then((result) => {
if (result) {
this.error_in_form_save_progress = false;
alert("se guardaran cambios");
return
}
this.error_in_form_save_progress = true;
});
}
}
}
</script>

Answer 1

I found solution with this code. In my parent component i add provide and i send the $validator
export default {
components:{
...
},
provide() {
return {
$validator: this.$validator,
}
},
In my child component i received this
inject: ['$validator'],
In my parent component i add this method to invoque validation
methods:{
save_progrees(){
var validationArray = this.$children.map(function(child){
return child.$validator.validateAll();
});
window.Promise.all(validationArray).then((v) => {
v.some( element => { if ( element == false ) { throw "exists error in child component";} });
this.error_in_form_save_progress = false;
alert("datos guardados");
return
}).catch(() => {
this.show_message_error_validation();
});
},
show_message_error_validation(){
this.error_in_form_save_progress = true;
}
}
Finally to show error in component info-error I use this code
<template>
<div class="row" v-if="errors.items">
<div class="col-md-12">
<template v-for="(e,key) in errors.items" >
<div class="text-danger" v-if="e.field ==name_field" :key="key"> {{e.msg}} </div>
</template>
</div>
</div>
</template>

Answer 2

In your child component do watch for this.errors and in the watch, put this.$emit
Something like this below :
watch: {
errors: function (value) {
this.$emit('TextComponent', value)
}
}
And then catch it on your parent component see it here https://v2.vuejs.org/v2/api/#vm-emit