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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 4 times in this file.
| Line | Code |
|---|---|
| 3724 | $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->posts WHERE ID = %d", $post_id )); |
| 3725 | do_action( 'deleted_post', $post_id ); |
| 3726 | |
| 3727 | $uploadpath = wp_upload_dir(); |
| 3728 | |
| 3729 | if ( ! empty($meta['thumb']) ) { |
| 3730 | // Don't delete the thumb if another attachment uses it |
| 3731 | if (! $wpdb->get_row( $wpdb->prepare( "SELECT meta_id FROM $wpdb->postmeta WHERE meta_key = '_wp_attachment_metadata' AND meta_value LIKE %s AND post_id <> %d", '%' . $meta['thumb'] . '%', $post_id)) ) { |
| 3732 | $thumbfile = str_replace(basename($file), $meta['thumb'], $file); |
| 3733 | $thumbfile = apply_filters('wp_delete_file', $thumbfile); |
| 3734 | @ unlink( path_join($uploadpath['basedir'], $thumbfile) ); |
| 3735 | } |
| 3736 | } |
| 3737 | |
| 3738 | // remove intermediate and backup images if there are any |
| 3739 | foreach ( get_intermediate_image_sizes() as $size ) { |
| 3740 | if ( $intermediate = image_get_intermediate_size($post_id, $size) ) { |
| 3741 | $intermediate_file = apply_filters('wp_delete_file', $intermediate['path']); |
| 3742 | @ unlink( path_join($uploadpath['basedir'], $intermediate_file) ); |
| 3743 | } |
| 3744 | } |
| 3745 | |
| 3746 | if ( is_array($backup_sizes) ) { |
| 3747 | foreach ( $backup_sizes as $size ) { |
| 3748 | $del_file = path_join( dirname($meta['file']), $size['file'] ); |
| 3749 | $del_file = apply_filters('wp_delete_file', $del_file); |
| 3750 | @ unlink( path_join($uploadpath['basedir'], $del_file) ); |
| 3751 | } |
| 3752 | } |
| 3753 | |
| 3754 | $file = apply_filters('wp_delete_file', $file); |
| 3755 | |
| 3756 | if ( ! empty($file) ) |
| 3757 | @ unlink($file); |
| 3758 | |
| 3759 | clean_post_cache($post_id); |
| 3760 | |
| 3761 | return $post; |
| 3762 | } |
| 3763 | |