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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 2 times in this file.
| Line | Code |
|---|---|
| 2026 | if ( !empty($post_meta_ids) ) { |
| 2027 | do_action( 'delete_postmeta', $post_meta_ids ); |
| 2028 | $in_post_meta_ids = "'" . implode("', '", $post_meta_ids) . "'"; |
| 2029 | $wpdb->query( "DELETE FROM $wpdb->postmeta WHERE meta_id IN($in_post_meta_ids)" ); |
| 2030 | do_action( 'deleted_postmeta', $post_meta_ids ); |
| 2031 | } |
| 2032 | |
| 2033 | do_action( 'delete_post', $postid ); |
| 2034 | $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->posts WHERE ID = %d", $postid )); |
| 2035 | do_action( 'deleted_post', $postid ); |
| 2036 | |
| 2037 | if ( 'page' == $post->post_type ) { |
| 2038 | clean_page_cache($postid); |
| 2039 | |
| 2040 | foreach ( (array) $children as $child ) |
| 2041 | clean_page_cache($child->ID); |
| 2042 | |
| 2043 | $wp_rewrite->flush_rules(false); |
| 2044 | } else { |
| Line | Code |
| 3798 | if ( !empty($post_meta_ids) ) { |
| 3799 | do_action( 'delete_postmeta', $post_meta_ids ); |
| 3800 | $in_post_meta_ids = "'" . implode("', '", $post_meta_ids) . "'"; |
| 3801 | $wpdb->query( "DELETE FROM $wpdb->postmeta WHERE meta_id IN($in_post_meta_ids)" ); |
| 3802 | do_action( 'deleted_postmeta', $post_meta_ids ); |
| 3803 | } |
| 3804 | |
| 3805 | do_action( 'delete_post', $post_id ); |
| 3806 | $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->posts WHERE ID = %d", $post_id )); |
| 3807 | do_action( 'deleted_post', $post_id ); |
| 3808 | |
| 3809 | $uploadpath = wp_upload_dir(); |
| 3810 | |
| 3811 | if ( ! empty($meta['thumb']) ) { |
| 3812 | // Don't delete the thumb if another attachment uses it |
| 3813 | 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)) ) { |
| 3814 | $thumbfile = str_replace(basename($file), $meta['thumb'], $file); |
| 3815 | $thumbfile = apply_filters('wp_delete_file', $thumbfile); |
| 3816 | @ unlink( path_join($uploadpath['basedir'], $thumbfile) ); |