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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 3 times in this file.
| Line | Code |
|---|---|
| 432 | foreach ( $comment_ids as $comment_id ) { |
| 433 | do_action( 'deleted_comment', $comment_id, $comments[ $comment_id ] ); |
| 434 | unset( $comments[ $comment_id ] ); |
| 435 | } |
| 436 | |
| 437 | clean_comment_cache( $comment_ids ); |
| 438 | do_action( 'akismet_delete_comment_batch', count( $comment_ids ) ); |
| 439 | } |
| 440 | |
| 441 | if ( apply_filters( 'akismet_optimize_table', ( mt_rand(1, 5000) == 11), $wpdb->comments ) ) // lucky number |
| 442 | $wpdb->query("OPTIMIZE TABLE {$wpdb->comments}"); |
| 443 | } |
| 444 | |
| 445 | public static function delete_old_comments_meta() { |
| 446 | global $wpdb; |
| 447 | |
| 448 | $interval = apply_filters( 'akismet_delete_commentmeta_interval', 15 ); |
| 449 | |
| 450 | # enforce a minimum of 1 day |
| Line | Code |
| 462 | |
| 463 | foreach ( $comment_ids as $comment_id ) { |
| 464 | delete_comment_meta( $comment_id, 'akismet_as_submitted' ); |
| 465 | do_action( 'akismet_batch_delete_count', __FUNCTION__ ); |
| 466 | } |
| 467 | |
| 468 | do_action( 'akismet_delete_commentmeta_batch', count( $comment_ids ) ); |
| 469 | } |
| 470 | |
| 471 | if ( apply_filters( 'akismet_optimize_table', ( mt_rand(1, 5000) == 11), $wpdb->commentmeta ) ) // lucky number |
| 472 | $wpdb->query("OPTIMIZE TABLE {$wpdb->commentmeta}"); |
| 473 | } |
| 474 | |
| 475 | // Clear out comments meta that no longer have corresponding comments in the database |
| 476 | public static function delete_orphaned_commentmeta() { |
| 477 | global $wpdb; |
| 478 | |
| 479 | $last_meta_id = 0; |
| 480 | $start_time = isset( $_SERVER['REQUEST_TIME_FLOAT'] ) ? $_SERVER['REQUEST_TIME_FLOAT'] : microtime( true ); |
| Line | Code |
| 499 | } |
| 500 | |
| 501 | do_action( 'akismet_delete_commentmeta_batch', $commentmeta_deleted ); |
| 502 | |
| 503 | // If we're getting close to max_execution_time, quit for this round. |
| 504 | if ( microtime(true) - $start_time > $max_exec_time ) |
| 505 | return; |
| 506 | } |
| 507 | |
| 508 | if ( apply_filters( 'akismet_optimize_table', ( mt_rand(1, 5000) == 11), $wpdb->commentmeta ) ) // lucky number |
| 509 | $wpdb->query("OPTIMIZE TABLE {$wpdb->commentmeta}"); |
| 510 | } |
| 511 | |
| 512 | // how many approved comments does this author have? |
| 513 | public static function get_user_comments_approved( $user_id, $comment_author_email, $comment_author, $comment_author_url ) { |
| 514 | global $wpdb; |
| 515 | |
| 516 | /** |
| 517 | * Which comment types should be ignored when counting a user's approved comments? |