Incorporate issues into the VeeValidate error collection using the parent component, then monitor them from the child components

Question

Incorporate issues into the VeeValidate error collection using the parent component, then monitor them from the child components

Is there a way to implement data transfer from a parent component to a child component for error handling? Specifically, how can I add data to the errors bag from the parent component and then listen to a specific error in the child component to display something conditionally?

In the parent component, I have added the error to the errors bag like so:

export default {
  mounted () {
    this.$validator.errors.add('critical', 'Unable to connect', 'network')
  }
}

Now in the child component, I want to display something conditionally based on the presence of an error in the error bag. This is what I have in my child component:

<a class="navbar-item" v-if="!errors.has('critical')">Hello World</a>

The issue I'm facing is that errors.has('critical') returns false because VeeValidate creates a new instance for each component. How can I transfer the same errors bag from the parent component to the child component to effectively handle errors?

javascript vue.js vue-component

Answer 1

Answer №1

If you want to share the error bag across all your components, simply inject the validator into each component. More details can be found in the documentation provided at the following link:

For examples of how to use the error bag, you can refer to the following link: https://github.com/baianat/vee-validate/issues/468#issuecomment-305189771

Answer 2

If you want to share the error bag across all your components, simply inject the validator into each component. More details can be found in the documentation provided at the following link:

For examples of how to use the error bag, you can refer to the following link: https://github.com/baianat/vee-validate/issues/468#issuecomment-305189771

Answer 3

Answer №2

While I don't have direct experience with VeeValidate, I believe that the Vue approach should be effective regardless of the specific library you are using.

There may be alternative methods to achieve the same result with your chosen library. However, here is how I would tackle it:

First Step

Trigger the event from a method in your parent component:

let payload = {
    message: 'Unable to connect', 
    type: 'network'
};
this.$emit('error', payload);

#Second Step

In your child component, or any other component:

let self = this;
$on('error', (payload) => {
   self.error = payload;
});

#Third Step

You can now reference the error in your template in another component:

<div class="alert alert-danger" v-if="error.type == 'critical'" v-text="error.message"></div>

This is just an illustrative example in ES6 syntax, but you can adapt it to other versions as needed.

For more detailed information, you can refer to the documentation provided here: https://v2.vuejs.org/v2/guide/components.html#Using-v-on-with-Custom-Events

Answer 4

While I don't have direct experience with VeeValidate, I believe that the Vue approach should be effective regardless of the specific library you are using.

There may be alternative methods to achieve the same result with your chosen library. However, here is how I would tackle it:

First Step

Trigger the event from a method in your parent component:

let payload = {
    message: 'Unable to connect', 
    type: 'network'
};
this.$emit('error', payload);

#Second Step

In your child component, or any other component:

let self = this;
$on('error', (payload) => {
   self.error = payload;
});

#Third Step

You can now reference the error in your template in another component:

<div class="alert alert-danger" v-if="error.type == 'critical'" v-text="error.message"></div>

This is just an illustrative example in ES6 syntax, but you can adapt it to other versions as needed.

For more detailed information, you can refer to the documentation provided here: https://v2.vuejs.org/v2/guide/components.html#Using-v-on-with-Custom-Events

Incorporate issues into the VeeValidate error collection using the parent component, then monitor them from the child components

Answer №1

Answer №2

First Step

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