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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 2 times in this file.
| Line | Code |
|---|---|
| 1760 | // Use wp_delete_post (via wp_delete_post_revision) again. Ensures any meta/misplaced data gets cleaned up. |
| 1761 | foreach ( $revision_ids as $revision_id ) |
| 1762 | wp_delete_post_revision( $revision_id ); |
| 1763 | |
| 1764 | // Point all attachments to this post up one level |
| 1765 | $wpdb->update( $wpdb->posts, $parent_data, $parent_where + array( 'post_type' => 'attachment' ) ); |
| 1766 | |
| 1767 | $comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = %d", $postid )); |
| 1768 | if ( ! empty($comment_ids) ) { |
| 1769 | do_action( 'delete_comment', $comment_ids ); |
| 1770 | foreach ( $comment_ids as $comment_id ) |
| 1771 | wp_delete_comment( $comment_id, true ); |
| 1772 | do_action( 'deleted_comment', $comment_ids ); |
| 1773 | } |
| 1774 | |
| 1775 | $post_meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->postmeta WHERE post_id = %d ", $postid )); |
| 1776 | if ( !empty($post_meta_ids) ) { |
| 1777 | do_action( 'delete_postmeta', $post_meta_ids ); |
| 1778 | $in_post_meta_ids = "'" . implode("', '", $post_meta_ids) . "'"; |
| Line | Code |
| 3458 | do_action('delete_attachment', $post_id); |
| 3459 | |
| 3460 | wp_delete_object_term_relationships($post_id, array('category', 'post_tag')); |
| 3461 | wp_delete_object_term_relationships($post_id, get_object_taxonomies($post->post_type)); |
| 3462 | |
| 3463 | $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->postmeta WHERE meta_key = '_thumbnail_id' AND meta_value = %d", $post_id )); |
| 3464 | |
| 3465 | $comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = %d", $post_id )); |
| 3466 | if ( ! empty( $comment_ids ) ) { |
| 3467 | do_action( 'delete_comment', $comment_ids ); |
| 3468 | foreach ( $comment_ids as $comment_id ) |
| 3469 | wp_delete_comment( $comment_id, true ); |
| 3470 | do_action( 'deleted_comment', $comment_ids ); |
| 3471 | } |
| 3472 | |
| 3473 | $post_meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->postmeta WHERE post_id = %d ", $post_id )); |
| 3474 | if ( !empty($post_meta_ids) ) { |
| 3475 | do_action( 'delete_postmeta', $post_meta_ids ); |
| 3476 | $in_post_meta_ids = "'" . implode("', '", $post_meta_ids) . "'"; |