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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 |
|---|---|
| 489 | foreach ( $comment_ids as $comment_id ) { |
| 490 | do_action( 'deleted_comment', $comment_id, $comments[ $comment_id ] ); |
| 491 | unset( $comments[ $comment_id ] ); |
| 492 | } |
| 493 | |
| 494 | clean_comment_cache( $comment_ids ); |
| 495 | do_action( 'akismet_delete_comment_batch', is_countable( $comment_ids ) ? count( $comment_ids ) : 0 ); |
| 496 | } |
| 497 | |
| 498 | if ( apply_filters( 'akismet_optimize_table', ( mt_rand(1, 5000) == 11), $wpdb->comments ) ) // lucky number |
| 499 | $wpdb->query("OPTIMIZE TABLE {$wpdb->comments}"); |
| 500 | } |
| 501 | |
| 502 | public static function delete_old_comments_meta() { |
| 503 | global $wpdb; |
| 504 | |
| 505 | $interval = apply_filters( 'akismet_delete_commentmeta_interval', 15 ); |
| 506 | |
| 507 | # enforce a minimum of 1 day |
| Line | Code |
| 519 | |
| 520 | foreach ( $comment_ids as $comment_id ) { |
| 521 | delete_comment_meta( $comment_id, 'akismet_as_submitted' ); |
| 522 | do_action( 'akismet_batch_delete_count', __FUNCTION__ ); |
| 523 | } |
| 524 | |
| 525 | do_action( 'akismet_delete_commentmeta_batch', is_countable( $comment_ids ) ? count( $comment_ids ) : 0 ); |
| 526 | } |
| 527 | |
| 528 | if ( apply_filters( 'akismet_optimize_table', ( mt_rand(1, 5000) == 11), $wpdb->commentmeta ) ) // lucky number |
| 529 | $wpdb->query("OPTIMIZE TABLE {$wpdb->commentmeta}"); |
| 530 | } |
| 531 | |
| 532 | // Clear out comments meta that no longer have corresponding comments in the database |
| 533 | public static function delete_orphaned_commentmeta() { |
| 534 | global $wpdb; |
| 535 | |
| 536 | $last_meta_id = 0; |
| 537 | $start_time = isset( $_SERVER['REQUEST_TIME_FLOAT'] ) ? $_SERVER['REQUEST_TIME_FLOAT'] : microtime( true ); |
| Line | Code |
| 556 | } |
| 557 | |
| 558 | do_action( 'akismet_delete_commentmeta_batch', $commentmeta_deleted ); |
| 559 | |
| 560 | // If we're getting close to max_execution_time, quit for this round. |
| 561 | if ( microtime(true) - $start_time > $max_exec_time ) |
| 562 | return; |
| 563 | } |
| 564 | |
| 565 | if ( apply_filters( 'akismet_optimize_table', ( mt_rand(1, 5000) == 11), $wpdb->commentmeta ) ) // lucky number |
| 566 | $wpdb->query("OPTIMIZE TABLE {$wpdb->commentmeta}"); |
| 567 | } |
| 568 | |
| 569 | // how many approved comments does this author have? |
| 570 | public static function get_user_comments_approved( $user_id, $comment_author_email, $comment_author, $comment_author_url ) { |
| 571 | global $wpdb; |
| 572 | |
| 573 | /** |
| 574 | * Which comment types should be ignored when counting a user's approved comments? |