rafenden/drupal-required-error-message

Drupal module providing a Form API parameter for custom error message per element

PHP

Overview

A simple module for developers allowing a user to specify custom message displayed when required form element empty.

See https://www.drupal.org/node/742344 for D8 discussion.

Features

Set custom error message:

$form['message'] = array(
  '#type' => 'textarea',
  '#title' => t('Message'),
  '#required' => TRUE,
  '#required_error' => t('Please enter a message.'),
);

Works with any form element.

Installation and configuration

Required Error Message (required_error) module as usual (https://www.drupal.org/documentation/install/modules-themes/modules-7).
Add #required_error to a form element.