99 lines
2.7 KiB
Plaintext
99 lines
2.7 KiB
Plaintext
<?php
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/**
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* @file
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* Fill form elements with data from GET or POST values.
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*
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* Originally written by ea. Farris <eafarris@gmail.com>
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* Based on an idea from chx, from the conversation at
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* http://www.drupal.org/node/27155.
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*/
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/**
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* Implements hook_help().
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*/
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function prepopulate_help($path, $arg) {
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switch ($path) {
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case 'admin/modules#description':
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return t('Pre-populates forms with HTTP GET or POST data');
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}
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}
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/**
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* Implements hook_form_alter().
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*/
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function prepopulate_form_alter(&$form, $form_state, $form_id) {
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// If this is a subsequent step of a multi-step form, the prepopulate values
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// have done their work, and the user may have modified them: bail.
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if (!empty($form_state['rebuild'])) {
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return;
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}
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if (isset($_REQUEST['edit'])) {
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$form['#after_build'][] = 'prepopulate_after_build';
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}
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}
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/**
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* An #after_build function to set the values prepopulated in the request.
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*/
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function prepopulate_after_build($form, &$form_state) {
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if (isset($_REQUEST['edit'])) {
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$request = (array) $_REQUEST['edit'];
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_prepopulate_request_walk($form, $request);
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}
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return $form;
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}
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/**
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* Internal helper to set element values from the $_REQUEST variable.
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*
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* @param array &$form
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* A form element.
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* @param mixed &$request_slice
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* String or array. Value(s) to be applied to the element.
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*/
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function _prepopulate_request_walk(&$form, &$request_slice) {
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$limited_types = array(
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'actions',
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'button',
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'container',
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'token',
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'value',
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'hidden',
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'image_button',
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'password',
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'password_confirm',
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'text_format',
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'markup',
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);
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if (is_array($request_slice)) {
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foreach (array_keys($request_slice) as $request_variable) {
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if (element_child($request_variable) && !empty($form[$request_variable]) &&
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(!isset($form[$request_variable]['#type']) || !in_array($form[$request_variable]['#type'], $limited_types))) {
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if (!isset($form[$request_variable]['#access']) || $form[$request_variable]['#access'] != FALSE) {
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_prepopulate_request_walk($form[$request_variable], $request_slice[$request_variable]);
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}
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}
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}
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if (!empty($form['#default_value']) && is_array($form['#default_value'])) {
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$form['#default_value'] = array_merge($form['#default_value'], $request_slice);
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}
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}
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else {
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if ($form['#type'] == 'markup' || empty($form['#type'])) {
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$form['#value'] = check_plain($request_slice);
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}
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else {
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$form['#value'] = $request_slice;
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}
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if ($form['#type'] == 'checkboxes' || $form['#type'] == 'checkbox') {
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if (!empty($form['#value'])) {
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$form['#checked'] = TRUE;
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}
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else {
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$form['#checked'] = FALSE;
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}
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}
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}
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}
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