What is the best way to handle empty inputs in a class?

Question

What is the best way to handle empty inputs in a class?

I am a novice web developer working on my first application, a small CRUD project. Here is the code I have so far:

<template>
  <CRow>
    <CCol col="12">
      <CCard no-header>
        <CCardBody>
          <h3>
            Create Note
          </h3>
          <CAlert
            :show.sync="dismissCountDown"
            color="primary"
            fade
          >
            ({{ dismissCountDown }}) {{ message }}
          </CAlert>
          
          <!-- Rest of the code goes here -->
        </CCardBody>
      </CCard>
    </CCol>
  </CRow>
</template>

<script>
// JavaScript code goes here
</script>

<style>
// Styling code goes here
.invalid input, textarea, select, checkbox {
  border-color: red;
}
</style>

Currently, the font color and input border change automatically after clicking "Save". I want the border to appear only on empty inputs. How can I achieve this functionality?

Your help will be greatly appreciated! :)

javascript vue.js

Answer 1

Answer №1

Make sure to include a condition inside the binding class

<CInput label="New Title" type="text" id="newTitle" placeholder="Enter New Title" v-model="newNote.title"
              v-bind:class="[newNote.title == '' ? 'text-warning error' : '']"></CInput>

Answer 2

Make sure to include a condition inside the binding class

<CInput label="New Title" type="text" id="newTitle" placeholder="Enter New Title" v-model="newNote.title"
              v-bind:class="[newNote.title == '' ? 'text-warning error' : '']"></CInput>

Answer 3

Answer №2

Make sure to have an error indicator for each input field. It's recommended to organize and track errors in an object.

Example

<CInput label="Enter Title" type="text" id="title" placeholder="Title" v-model="note.title"
                  v-bind:class="{ 'text-danger invalid': errors['title']}"></CInput>

<CInput textarea="true" label="Content" id="content" :rows="9" placeholder="Content.."
                  v-model="note.content" v-bind:class="{ 'text-danger invalid': errors['content'] }"></CInput>

Data

 data: () => {
    return {
      errors: {
        title: false,
        content: false,        
      },
      note: {
        title: '',
        content: '',
        applies_to_date: '',
        status_id: null,
        note_type: '',
      },

Validate Inputs

checkInputs() {
      let errorCount = 0;

      // Check each input field     
      if (!this.note.title){
        this.errors['title'] = true;
        errorCount++;    
      }
      else {
       this.errors['title'] = false;
      }

      if (!this.note.content){
        this.errors['content'] = true;
        errorCount++;    
      }
      else {
       this.errors['content'] = false;
      }

     // Additional validation steps can be added

      return errorCount;
    }

Answer 4

Make sure to have an error indicator for each input field. It's recommended to organize and track errors in an object.

Example

<CInput label="Enter Title" type="text" id="title" placeholder="Title" v-model="note.title"
                  v-bind:class="{ 'text-danger invalid': errors['title']}"></CInput>

<CInput textarea="true" label="Content" id="content" :rows="9" placeholder="Content.."
                  v-model="note.content" v-bind:class="{ 'text-danger invalid': errors['content'] }"></CInput>

Data

 data: () => {
    return {
      errors: {
        title: false,
        content: false,        
      },
      note: {
        title: '',
        content: '',
        applies_to_date: '',
        status_id: null,
        note_type: '',
      },

Validate Inputs

checkInputs() {
      let errorCount = 0;

      // Check each input field     
      if (!this.note.title){
        this.errors['title'] = true;
        errorCount++;    
      }
      else {
       this.errors['title'] = false;
      }

      if (!this.note.content){
        this.errors['content'] = true;
        errorCount++;    
      }
      else {
       this.errors['content'] = false;
      }

     // Additional validation steps can be added

      return errorCount;
    }

What is the best way to handle empty inputs in a class?

Answer №1

Answer №2

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