/**
* Cleans post meta on removal of dynamic fields
*
*/
function sanitize_data($input)
{
if (!empty($_POST)) {
// If we are updating the options.php page with dynamic fields
if ($_POST['option_page'] == $this->id && !empty($this->post_type)) {
$post_meta_keys = array();
$option_keys = array();
$dynamic_fields = $_POST[$this->id];
$args = array('post_type' => $this->post_type);
$posts = Cuztom::get_cuztom_posts($args);
$prefix = 'nm_dyn_';
// Add the posted option key names
foreach ($dynamic_fields as $value) {
foreach ($value as $post_value) {
$key_name = $post_value['_field_name'];
$option_keys[] = Cuztom::uglify($prefix . $key_name);
}
}
if (!empty($posts)) {
// Loop through all the posts deleting dynamic_fields that arn't used anymore
foreach ($posts as $post) {
// Get the post meta for all the posts + add it to an array
$post_metas = get_post_custom($post->ID);
foreach ($post_metas as $key => $value) {
if (strpos($key, 'nm_dyn_') !== false) {
$post_meta_keys[$key] = false;
}
}
// Check against the posted option values and set to true
foreach ($post_meta_keys as $post_meta_key => $value) {
foreach ($option_keys as $option_key) {
if (strpos($post_meta_key, $option_key) !== false) {
$post_meta_keys[$post_meta_key] = true;
}
}
}
// If the post_meta failed the check and isn't being used delete it
foreach ($post_meta_keys as $post_meta_key => $is_used) {
if ($is_used == false) {
delete_post_meta($post->ID, $post_meta_key);
}
}
}
}
}
}
return $input;
}
