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<?php
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// $Id: form_restore.module,v 1.1 2006/07/28 04:42:11 tema Exp $
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/**
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* @file
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* Restores non-submitted form values when user is back.
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* Use it with add_n_reference.module
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*/
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/**
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* Implementation of hook_help().
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*/
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function form_restore_help($section) {
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switch ($section) {
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case 'admin/modules#description':
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return t('Restores non-submitted form values. <em>Note: Use it with add_n_reference.module</em>');
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}
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}
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/**
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* Implementation of hook_menu().
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*/
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function form_restore_menu($may_cache) {
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$items = array();
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if ($may_cache) {
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// Settings page
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$items[] = array(
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'path' => 'admin/settings/form_restore/reset',
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'title' => t('empty stored form data'),
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'callback' => 'form_restore_reset_form',
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'access' => user_access('empty form_restore data'),
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'type' => MENU_NORMAL_ITEM,
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);
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}
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return $items;
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}
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function form_restore_reset_form() {
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return confirm_form('form_restore_reset_form', array(), t('Are you sure you want to empty all stored forms data?'), 'admin/settings', t('All filled in non-submitted data will be lost.'), t('Empty all'));
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}
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function form_restore_reset_form_submit() {
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if (isset($_SESSION['post_stack'])) {
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unset($_SESSION['post_stack']);
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drupal_set_message(t('all saved form data was emptied'));
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}
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else {
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drupal_set_message(t('there are no stored forms'));
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}
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return 'admin/settings';
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}
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/**
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* Implementation of hook_form_alter().
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*/
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function form_restore_form_alter($form_id, &$form) {
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if (isset($form['type']) && $form['type']['#value'] .'_node_form' == $form_id) {
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if (!isset($_POST['op'])) {
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if (isset($_SESSION['post_stack'][$_REQUEST['q']])
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&& _form_restore_set_default_values(&$form, $_SESSION['post_stack'][$_REQUEST['q']]['edit'])) {
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$_SESSION['post_stack'][$_REQUEST['q']]['restored'] = true;
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}
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}
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else if ($_POST['op'] == t('Submit') && isset($_SESSION['post_stack'][$_REQUEST['q']]['restored'])) {
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if (isset($_SESSION['post_stack'][$_REQUEST['q']]['destination'])) {
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$_REQUEST['destination'] = $_SESSION['post_stack'][$_REQUEST['q']]['destination'];
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}
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unset($_SESSION['post_stack'][$_REQUEST['q']]);
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}
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}
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}
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function _form_restore_set_default_values(&$form_item, $stored_item, $success = false) {
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if (is_array($form_item) && is_array($stored_item)) {
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$keys = array_intersect(array_keys($form_item), array_keys($stored_item));
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if (!empty($keys)) {
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foreach ($keys as $key) {
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if (array_key_exists('#default_value', $form_item[$key])) {
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if (is_array($stored_item[$key]) && !empty($stored_item[$key])) {
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$form_item[$key]['#default_value'] = array_merge_recursive($form_item[$key]['#default_value'], $stored_item[$key]);
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$success = true;
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}
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else if ($stored_item[$key] != '' && $form_item[$key]['#default_value'] != $stored_item[$key]) {
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$form_item[$key]['#default_value'] = $stored_item[$key];
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}
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}
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else {
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$success = _form_restore_set_default_values($form_item[$key], $stored_item[$key], $success);
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}
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}
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}
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}
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return $success;
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}
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