Woocommerce registration form validation not working

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I have added some new fields to my woocommerce registration form, but i can’t validate these new fields.

There’s my new fields

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add_action('register_form','myplugin_register_form');
function myplugin_register_form (){
    $first_name = ( isset( $_POST['first_name'] ) ) ? $_POST['first_name']: '';
    $last_name = ( isset( $_POST['last_name'] ) ) ? $_POST['last_name']: '';
    ?>
    <div class="row">
        <div class="col-md-4">
            <label for="first_name">Prénom <span class="required">*</span></label>
            <input type="text" class="input-text" name="first_name" id="first_name" value="<?php if ( ! empty( $_POST['first_name'] ) ) echo esc_attr( $_POST['first_name'] ); ?>" />
        </div>
        <div class="col-md-4">
            <label for="last_name">Nom <span class="required">*</span></label>
            <input type="text" class="input-text" name="last_name" id="last_name" value="<?php if ( ! empty( $_POST['last_name'] ) ) echo esc_attr( $_POST['last_name'] ); ?>" />
        </div>
    </div>
    <?php
}

And this is my filter for the validation according to the wordpress codex https://codex.wordpress.org/Customizing_the_Registration_Form 

function myplugin_registration_errors ($errors, $sanitized_user_login, $user_email) {

    if ( empty( $_POST['first_name'] ) )
        $errors->add( 'first_name_error', __('<strong>ERROR</strong>: You must include a first name.','mydomain') );

    return $errors;
}

When i submit my form, without the field $_POST[‘first_name’] it passe without errors.

What’s the best way to do it?

Thank you for your help

Post Views: 3

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2 comments

  1. Please write this code in theme’s/child theme’s functions.php

    /**
 * Validate the extra register fields.
 *
 * @param  string $username          Current username.
 * @param  string $email             Current email.
 * @param  object $validation_errors WP_Error object.
 *
 * @return void
 */
function wooc_validate_extra_register_fields( $username, $email, $validation_errors ) {

    if ( isset( $_POST['first_name'] ) && empty( $_POST['first_name'] ) ) {
        $validation_errors->add( 'first_name_error', __( '<strong>Error</strong>: First Name is required!.', 'woocommerce' ) );
    }

    if ( isset( $_POST['last_name'] ) && empty( $_POST['last_name'] )  ) {
        $validation_errors->add( 'last_name_error', __( '<strong>Error</strong>: Last Name is required!.', 'woocommerce' ) );
    }
}

add_action( 'woocommerce_register_post', 'wooc_validate_extra_register_fields', 10, 3 );

  2. If you look in woocommerce-fundtions.php it check for $woocommerce->error
    -count() == 0     and then proceed. So, instead adding errors to wordpress $errors I would add errors to Woocommerce like $woocommerce->add_error( $reg_errors->get_error_message() )

    So the code would be

    add_filter('registration_errors', 'myplugin_registration_errors' ), 10, 3);

function myplugin_registration_errors($errors, $sanitized_user_login, $user_email) {
    global $woocommerce;

    if ( empty( $_POST['first_name'] ) )
        $woocommerce->add_error( 'first_name_error', __('<strong>ERROR</strong>: You must include a first name.','mydomain') );

    return $errors;
}