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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.
| Line | Code |
|---|---|
| 529 | global $wpdb; |
| 530 | $postid = (int) $postid; |
| 531 | |
| 532 | if ( !$post = $wpdb->get_row("SELECT * FROM $wpdb->posts WHERE ID = $postid") ) |
| 533 | return $post; |
| 534 | |
| 535 | if ( 'attachment' == $post->post_status ) |
| 536 | return wp_delete_attachment($postid); |
| 537 | |
| 538 | do_action('delete_post', $postid); |
| 539 | |
| 540 | if ( 'publish' == $post->post_status) { |
| 541 | $categories = wp_get_post_cats('', $post->ID); |
| 542 | if( is_array( $categories ) ) { |
| 543 | foreach ( $categories as $cat_id ) { |
| 544 | $wpdb->query("UPDATE $wpdb->categories SET category_count = category_count - 1 WHERE cat_ID = '$cat_id'"); |
| 545 | wp_cache_delete($cat_id, 'category'); |
| 546 | } |
| 547 | } |