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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 |
|---|---|
| 3482 | $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->posts WHERE ID = %d", $post_id )); |
| 3483 | do_action( 'deleted_post', $post_id ); |
| 3484 | |
| 3485 | $uploadpath = wp_upload_dir(); |
| 3486 | |
| 3487 | if ( ! empty($meta['thumb']) ) { |
| 3488 | // Don't delete the thumb if another attachment uses it |
| 3489 | 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)) ) { |
| 3490 | $thumbfile = str_replace(basename($file), $meta['thumb'], $file); |
| 3491 | $thumbfile = apply_filters('wp_delete_file', $thumbfile); |
| 3492 | @ unlink( path_join($uploadpath['basedir'], $thumbfile) ); |
| 3493 | } |
| 3494 | } |
| 3495 | |
| 3496 | // remove intermediate and backup images if there are any |
| 3497 | foreach ( get_intermediate_image_sizes() as $size ) { |
| 3498 | if ( $intermediate = image_get_intermediate_size($post_id, $size) ) { |
| 3499 | $intermediate_file = apply_filters('wp_delete_file', $intermediate['path']); |
| 3500 | @ unlink( path_join($uploadpath['basedir'], $intermediate_file) ); |
| 3501 | } |
| 3502 | } |
| 3503 | |
| 3504 | if ( is_array($backup_sizes) ) { |
| 3505 | foreach ( $backup_sizes as $size ) { |
| 3506 | $del_file = path_join( dirname($meta['file']), $size['file'] ); |
| 3507 | $del_file = apply_filters('wp_delete_file', $del_file); |
| 3508 | @ unlink( path_join($uploadpath['basedir'], $del_file) ); |
| 3509 | } |
| 3510 | } |
| 3511 | |
| 3512 | $file = apply_filters('wp_delete_file', $file); |
| 3513 | |
| 3514 | if ( ! empty($file) ) |
| 3515 | @ unlink($file); |
| 3516 | |
| 3517 | clean_post_cache($post_id); |
| 3518 | |
| 3519 | return $post; |
| 3520 | } |
| 3521 | |