Ensuring the accuracy of a single field within a form containing multiple fields is made possible through the utilization of

Question

Ensuring the accuracy of a single field within a form containing multiple fields is made possible through the utilization of

I am facing an issue with my emailValidation method. Even though I want it to run when

this.$refs.editUserForm.validate('email')

returns true, it always seems to return false, especially when a valid email like

<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="f993989a92b9818083d79a96">[email protected]</a>

is entered. Can someone help me figure out how to properly validate a single field in a form?

<template>
  <v-form ref="editUserForm" :model="user" data-app>
    <v-text-field
      v-model="user.first_name"
      label="First Name"
      :rules="firstNameRules"
      class="required"
      required
    >
    </v-text-field>
    <v-text-field
      v-model="user.email"
      label="Email"
      :rules="emailRules"
      name="email"
      class="required"
      required
      @blur="emailValidation"
    >
    </v-text-field>
  </v-form>
</template>

<script>
export default {
  data: function () {
    return {
      client: {
        first_name: '',
        email: ''
      },
      firstNameRules: [
        value => !!value || 'Please enter a first name'
      ],
      emailRules: [ 
        v => /^\w+([.-]?\w+)*@\w+([.-]?\w+)*(\.\w{2,3})+$/.test(v) || 'E-mail must 
        be valid'
      ]
    };
  },


  methods: {
    emailValidation(){
      if (this.$refs.editUserForm.validate('email')) {
        console.log("Valid")
      }
      else {
        console.log("Not Valid")
      }
    }
  }
};
</script>

javascript vue.js validation vuetify.js

Answer 1

Answer №1

One of the issues at hand is that the function validate within the form does not accept a string as input. It will validate the entire form and provide a result, which means even if the email field is valid, it could still return false if other fields are flagged as invalid.

In order to specifically validate just one field, you must assign a ref to that particular field and then call validate() on that specific field's ref.

<v-text-field
  ref="email"
  v-model="user.email"
  label="Email"
  :rules="emailRules"
  name="email"
  class="required"
  required
  @blur="emailValidation"
>
</v-text-field>

The validation process also varies depending on your Vuetify version:

Vuetify 2.x

emailValidation() {
  const valid = this.$refs.email.validate();
  if (valid) {
    console.log('Valid');
  } else {
    console.log('Not Valid');
  }
}

Vuetify 3.x

validate() now returns a promise, requiring the use of async/await

async emailValidation() {
  const valid = await this.$refs.email.validate();
  // The array 'valid' may contain error messages. A length of 0 indicates valid input
  if (valid.length === 0) {
    console.log('Valid');
  } else {
    console.log('Not Valid');
  }
}

Answer 2

One of the issues at hand is that the function validate within the form does not accept a string as input. It will validate the entire form and provide a result, which means even if the email field is valid, it could still return false if other fields are flagged as invalid.

In order to specifically validate just one field, you must assign a ref to that particular field and then call validate() on that specific field's ref.

<v-text-field
  ref="email"
  v-model="user.email"
  label="Email"
  :rules="emailRules"
  name="email"
  class="required"
  required
  @blur="emailValidation"
>
</v-text-field>

The validation process also varies depending on your Vuetify version:

Vuetify 2.x

emailValidation() {
  const valid = this.$refs.email.validate();
  if (valid) {
    console.log('Valid');
  } else {
    console.log('Not Valid');
  }
}

Vuetify 3.x

validate() now returns a promise, requiring the use of async/await

async emailValidation() {
  const valid = await this.$refs.email.validate();
  // The array 'valid' may contain error messages. A length of 0 indicates valid input
  if (valid.length === 0) {
    console.log('Valid');
  } else {
    console.log('Not Valid');
  }
}

Ensuring the accuracy of a single field within a form containing multiple fields is made possible through the utilization of

Answer №1

Vuetify 2.x

Vuetify 3.x

Similar questions

Video background in webflow not currently randomizing

What is the process for retrieving the chosen country code using material-ui-phone-number?

Ways to address the alignment of list items within a drawer component using React

Utilize angular to call a function when navigating

Leveraging Angular 6: Implementing custom scripts on a component basis and verifying their presence

Trying out asynchronous testing using Mocha and Sinonjs for the first time

creating circular shapes with canvas functions

Using Flask and AngularJS: Managing Scope in a Controller with Flask Templating

Managing Actions in React-Redux: Understanding the Dispatch Function

How to trigger a JavaScript function using a button click

Is it possible to compare every element in an array with one another using an asynchronous process in NodeJS?

Reloading and redirecting web pages with PHP and Ajax techniques

"Successfully implementing AJAX POST functionality, but encountering issues where callbacks are not triggering

Setting header details for optimal data transfer

What could be causing the props to appear empty in a Child component within a Quasar framework and Vue 3 application?

Executing program through Socket.io alert

The VueJS function is not defined

Implementing b-tooltip from Bootstrap-vue on a b-table

Encountering a TypeError when utilizing a npm hashtable within an object definition

A guide on implementing multiple ternary operators in a Vue.js template