function if_cloned_attachment($post_ID)
{
global $wpdb;
if ($post = $wpdb->get_row($wpdb->prepare("SELECT * FROM {$wpdb->posts} WHERE ID = %d", $post_ID))) {
if ('attachment' == $post->post_type) {
$attachment_post_language = get_cur_language($post_ID, 'slug');
// test meta lang
$linked_list = $this->translated_in($post_ID, 'array');
if (array() != $linked_list) {
$this->dont_delete_file = true;
// update meta in linked attachments
// a:1:{s:5:"en_us";a:3:{s:7:"post_ID";s:4:"8537";s:4:"name";s:5:"en_US";s:11:"description";s:7:"english";}}
foreach ($linked_list as $lang_slug => $linked_array) {
delete_post_meta($linked_array['post_ID'], QUETAG . '-' . $attachment_post_language);
// 2.18.1
}
} else {
$this->dont_delete_file = false;
}
}
}
}
/**
* return integer/array(id) of flags
*
* @since 2.15
* params $lang (empty = full series), 'admin' to detect admin_custom_xili_flag
*
* @return id or array
*/
function get_flag_series($lang = '', $admin = '')
{
$context = $admin == 'admin' ? 'admin_' : '';
$transient_name = $context . 'get_flag_series';
if (false === ($flag_series = get_transient($transient_name))) {
// test if in cache 2.16.4
$query = array('post_type' => 'attachment', 'posts_per_page' => -1, 'meta_query' => array(array('key' => '_wp_attachment_context', 'value' => $context . 'custom_xili_flag', 'compare' => '=')));
$flags = get_posts($query);
$flag_series = array();
if ($flags) {
$flags_ids = wp_list_pluck((array) $flags, 'ID');
$flags_ids = array_map('absint', $flags_ids);
foreach ($flags_ids as $flag_id) {
$attachment_post_language = get_cur_language($flag_id, 'slug');
if ('' != $attachment_post_language) {
$flag_series[$attachment_post_language] = $flag_id;
}
}
}
set_transient($transient_name, $flag_series, 1000 * HOUR_IN_SECONDS);
}
if ($lang) {
if (isset($flag_series[$lang])) {
return $flag_series[$lang];
} else {
return 0;
}
} else {
return $flag_series;
}
}