Handling individual form validation errors in codeigniter

Question

How to check for Form validation error for an individual element in codeigniter ?

I need to set 'has-error' class to the elements which failed the validation. This is not about printing validation errors.

This is what I currently have :

<div class="form-group <?php /**if validation error for this element then*/ echo 'has-error'; ?>">
    <label for="name">Name</label>
    <div class="validation-error">
        <?php echo form_error ( 'name' ); ?>
    </div>
    <div class="input-group">
        <div class="input-group-addon"><span class="glyphicon glyphicon-user" aria-hidden="true"></span></div>
        <input id="name" type="text" class="form-control validate" name="name" placeholder="Your full name" value="<?php echo set_value('name'); ?>">
    </div>
</div>

Answer 1

Can you try like below

<div class="form-group <?php  echo form_error('name') ? 'has-error' : ''; ?>">
<label for="name">Name</label>
<div class="validation-error">
    <?php echo form_error ( 'name' ); ?>
</div>
<div class="input-group">
    <div class="input-group-addon"><span class="glyphicon glyphicon-user" aria-hidden="true"></span></div>
    <input id="name" type="text" class="form-control validate" name="name" placeholder="Your full name" value="<?php echo set_value('name'); ?>">
</div>

Answer 2

The form_error method will be empty, if there is no error on that field. So you have to check like this:

<div class="form-group <?php echo form_error('name') !== '' ? 'has-error' : '' ?>">
    <label for="name">Name</label>
    <div class="validation-error">
        <?php echo form_error ( 'name' ); ?>
    </div>
    <div class="input-group">
        <div class="input-group-addon"><span class="glyphicon glyphicon-user" aria-hidden="true"></span></div>
        <input id="name" type="text" class="form-control validate" name="name" placeholder="Your full name" value="<?php echo set_value('name'); ?>">
    </div>
</div>