Cancel Node Button

How to add a node Cancel button (and remove the Preview button) ?

Use case: The User populates the node form, then decides to hit Cancel button to exit the page and return to the previous URL.

Button
sandshakimiAsked:
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Aaron FeledyDrupal Developer and ConsultantCommented:
Under the "submission form settings" tab when editing a content type there is a "Preview before submitting" option that you can disable.

The cancel button will need to be a custom module that utilizes hook_form_alter(). Your code will look something like this:
<?php
//Be sure to replace MODULENAME with the name of your module.
/**
 * Implements hook_form_alter().
 */
function MODULENAME_form_alter(&$form, &$form_state, $form_id) {
  if ($form_id == 'node_form') {
    // Add a cancel button.
    $form['actions']['cancel'] = array(
      '#type'   => 'submit',
      '#value'  => t('Cancel'),
      '#access' => TRUE,
      '#weight' => 15,
      '#submit' => array('MODULENAME_form_cancel', 'node_form_submit_build_node'),
      '#limit_validation_errors' => array(),
    );
  }
}
 
/**
 * Custom cancel button callback.
 */
function MODULENAME_form_cancel($form, &$form_state) {
  $url = $_GET['destination'] ? $_GET['destination'] : 'choose/your/path';
  drupal_goto($url);
}

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