/**
* Cleans an array, removing blank ('') values
*
* @static
* @since 1.0
* @access public
* @param array the array to clean (passed by reference)
*/
function clean(&$arr)
{
if (is_array($arr)) {
foreach ($arr as $i => $v) {
if (is_array($arr[$i])) {
WPAlchemy_MetaBox::clean($arr[$i]);
if (!count($arr[$i])) {
unset($arr[$i]);
}
} else {
if ('' == trim($arr[$i]) or is_null($arr[$i])) {
unset($arr[$i]);
}
}
}
if (!count($arr)) {
$arr = array();
} else {
$keys = array_keys($arr);
$is_numeric = TRUE;
foreach ($keys as $key) {
if (!is_numeric($key)) {
$is_numeric = FALSE;
break;
}
}
if ($is_numeric) {
$arr = array_values($arr);
}
}
}
}
function force_save($post_id)
{
/**
* note: the "save_post" action fires for saving revisions and post/pages,
* when saving a post this function fires twice, once for a revision save,
* and again for the post/page save ... the $post_id is different for the
* revision save, this means that "get_post_meta()" will not work if trying
* to get values for a revision (as it has no post meta data)
* see http://alexking.org/blog/2008/09/06/wordpress-26x-duplicate-custom-field-issue
*
* why let the code run twice? wordpress does not currently save post meta
* data per revisions (I think it should, so users can do a complete revert),
* so in the case that this functionality changes, let it run twice
*/
$real_post_id = isset($_POST['post_ID']) ? $_POST['post_ID'] : NULL;
// // check autosave
// if (defined('DOING_AUTOSAVE') AND DOING_AUTOSAVE AND !$this->autosave) return $post_id;
//
// // make sure data came from our meta box, verify nonce
// $nonce = isset($_POST[$this->id.'_nonce']) ? $_POST[$this->id.'_nonce'] : NULL ;
// if (!wp_verify_nonce($nonce, $this->id)) return $post_id;
//
// // check user permissions
// if ($_POST['post_type'] == 'page')
// {
// if (!current_user_can('edit_page', $post_id)) return $post_id;
// }
// else
// {
// if (!current_user_can('edit_post', $post_id)) return $post_id;
// }
// authentication passed, save data
$new_data = isset($_POST[$this->id]) ? $_POST[$this->id] : NULL;
WPAlchemy_MetaBox::clean($new_data);
if (empty($new_data)) {
$new_data = NULL;
}
// filter: save
if ($this->has_filter('save')) {
$new_data = $this->apply_filters('save', $new_data, $real_post_id);
/**
* halt saving
* @since 1.3.4
*/
if (FALSE === $new_data) {
return $post_id;
}
WPAlchemy_MetaBox::clean($new_data);
}
// get current fields, use $real_post_id (checked for in both modes)
$current_fields = get_post_meta($real_post_id, $this->id . '_fields', TRUE);
if ($this->mode == WPALCHEMY_MODE_EXTRACT) {
$new_fields = array();
if (is_array($new_data)) {
foreach ($new_data as $k => $v) {
$field = $this->prefix . $k;
array_push($new_fields, $field);
$new_value = $new_data[$k];
if (is_null($new_value)) {
delete_post_meta($post_id, $field);
} else {
update_post_meta($post_id, $field, $new_value);
}
}
}
$diff_fields = array_diff((array) $current_fields, $new_fields);
if (is_array($diff_fields)) {
foreach ($diff_fields as $field) {
delete_post_meta($post_id, $field);
}
}
delete_post_meta($post_id, $this->id . '_fields');
if (!empty($new_fields)) {
add_post_meta($post_id, $this->id . '_fields', $new_fields, TRUE);
}
// keep data tidy, delete values if previously using WPALCHEMY_MODE_ARRAY
delete_post_meta($post_id, $this->id);
} else {
if (is_null($new_data)) {
delete_post_meta($post_id, $this->id);
} else {
update_post_meta($post_id, $this->id, $new_data);
}
// keep data tidy, delete values if previously using WPALCHEMY_MODE_EXTRACT
if (is_array($current_fields)) {
foreach ($current_fields as $field) {
delete_post_meta($post_id, $field);
}
delete_post_meta($post_id, $this->id . '_fields');
}
}
// action: save
if ($this->has_action('save')) {
$this->do_action('save', $new_data, $real_post_id);
}
return $post_id;
}
