/**
* Trash or delete an attachment.
*
* When an attachment is permanently deleted, the file will also be removed.
* Deletion removes all post meta fields, taxonomy, comments, etc. associated
* with the attachment (except the main post).
*
* The attachment is moved to the trash instead of permanently deleted unless trash
* for media is disabled, item is already in the trash, or $force_delete is true.
*
* @since 0.0.1
*
* @global hqdb $hqdb HiveQueen database abstraction object.
*
* @param int $post_id Attachment ID.
* @param bool $force_delete Optional. Whether to bypass trash and force deletion.
* Default false.
* @return mixed False on failure. Post data on success.
*/
function hq_delete_attachment($post_id, $force_delete = false)
{
global $hqdb;
if (!($post = $hqdb->get_row($hqdb->prepare("SELECT * FROM {$hqdb->posts} WHERE ID = %d", $post_id)))) {
return $post;
}
if ('attachment' != $post->post_type) {
return false;
}
if (!$force_delete && EMPTY_TRASH_DAYS && MEDIA_TRASH && 'trash' != $post->post_status) {
return hq_trash_post($post_id);
}
delete_post_meta($post_id, '_hq_trash_meta_status');
delete_post_meta($post_id, '_hq_trash_meta_time');
$meta = hq_get_attachment_metadata($post_id);
$backup_sizes = get_post_meta($post->ID, '_hq_attachment_backup_sizes', true);
$file = get_attached_file($post_id);
if (is_multisite()) {
delete_transient('dirsize_cache');
}
/**
* Fires before an attachment is deleted, at the start of hq_delete_attachment().
*
* @since 0.0.1
*
* @param int $post_id Attachment ID.
*/
do_action('delete_attachment', $post_id);
hq_delete_object_term_relationships($post_id, array('category', 'post_tag'));
hq_delete_object_term_relationships($post_id, get_object_taxonomies($post->post_type));
// Delete all for any posts.
delete_metadata('post', null, '_thumbnail_id', $post_id, true);
$comment_ids = $hqdb->get_col($hqdb->prepare("SELECT comment_ID FROM {$hqdb->comments} WHERE comment_post_ID = %d", $post_id));
foreach ($comment_ids as $comment_id) {
hq_delete_comment($comment_id, true);
}
$post_meta_ids = $hqdb->get_col($hqdb->prepare("SELECT meta_id FROM {$hqdb->postmeta} WHERE post_id = %d ", $post_id));
foreach ($post_meta_ids as $mid) {
delete_metadata_by_mid('post', $mid);
}
/** This action is documented in hq-includes/post.php */
do_action('delete_post', $post_id);
$result = $hqdb->delete($hqdb->posts, array('ID' => $post_id));
if (!$result) {
return false;
}
/** This action is documented in hq-includes/post.php */
do_action('deleted_post', $post_id);
$uploadpath = hq_upload_dir();
if (!empty($meta['thumb'])) {
// Don't delete the thumb if another attachment uses it.
if (!$hqdb->get_row($hqdb->prepare("SELECT meta_id FROM {$hqdb->postmeta} WHERE meta_key = '_hq_attachment_metadata' AND meta_value LIKE %s AND post_id <> %d", '%' . $hqdb->esc_like($meta['thumb']) . '%', $post_id))) {
$thumbfile = str_replace(basename($file), $meta['thumb'], $file);
/** This filter is documented in hq-includes/functions.php */
$thumbfile = apply_filters('hq_delete_file', $thumbfile);
@unlink(path_join($uploadpath['basedir'], $thumbfile));
}
}
// Remove intermediate and backup images if there are any.
if (isset($meta['sizes']) && is_array($meta['sizes'])) {
foreach ($meta['sizes'] as $size => $sizeinfo) {
$intermediate_file = str_replace(basename($file), $sizeinfo['file'], $file);
/** This filter is documented in hq-includes/functions.php */
$intermediate_file = apply_filters('hq_delete_file', $intermediate_file);
@unlink(path_join($uploadpath['basedir'], $intermediate_file));
}
}
if (is_array($backup_sizes)) {
foreach ($backup_sizes as $size) {
$del_file = path_join(dirname($meta['file']), $size['file']);
/** This filter is documented in hq-includes/functions.php */
$del_file = apply_filters('hq_delete_file', $del_file);
@unlink(path_join($uploadpath['basedir'], $del_file));
}
}
hq_delete_file($file);
clean_post_cache($post);
return $post;
}
/**
* Delete link specified from database.
*
* @since 0.0.1
*
* @global hqdb $hqdb
*
* @param int $link_id ID of the link to delete
* @return true
*/
function hq_delete_link($link_id)
{
global $hqdb;
/**
* Fires before a link is deleted.
*
* @since 0.0.1
*
* @param int $link_id ID of the link to delete.
*/
do_action('delete_link', $link_id);
hq_delete_object_term_relationships($link_id, 'link_category');
$hqdb->delete($hqdb->links, array('link_id' => $link_id));
/**
* Fires after a link has been deleted.
*
* @since 0.0.1
*
* @param int $link_id ID of the deleted link.
*/
do_action('deleted_link', $link_id);
clean_bookmark_cache($link_id);
return true;
}
