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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 |
---|---|
458 |
|
459 | $wpdb->queries = array(); |
460 |
|
461 | $comments = array(); |
462 |
|
463 | foreach ( $comment_ids as $comment_id ) { |
464 | $comments[ $comment_id ] = get_comment( $comment_id ); |
465 |
|
466 | do_action( 'delete_comment', $comment_id, $comments[ $comment_id ] ); |
467 | do_action( 'akismet_batch_delete_count', __FUNCTION__ ); |
468 | } |
469 |
|
470 | // Prepared as strings since comment_id is an unsigned BIGINT, and using %d will constrain the value to the maximum signed BIGINT. |
471 | $format_string = implode( ", ", array_fill( 0, count( $comment_ids ), '%s' ) ); |
472 |
|
473 | $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->comments} WHERE comment_id IN ( " . $format_string . " )", $comment_ids ) ); |
474 | $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->commentmeta} WHERE comment_id IN ( " . $format_string . " )", $comment_ids ) ); |
475 |
|
476 | foreach ( $comment_ids as $comment_id ) { |
Line | Code |
500 | // after $interval days regardless of the comment status |
501 | while ( $comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT m.comment_id FROM {$wpdb->commentmeta} as m INNER JOIN {$wpdb->comments} as c USING(comment_id) WHERE m.meta_key = 'akismet_as_submitted' AND DATE_SUB(NOW(), INTERVAL %d DAY) > c.comment_date_gmt LIMIT 10000", $interval ) ) ) { |
502 | if ( empty( $comment_ids ) ) |
503 | return; |
504 |
|
505 | $wpdb->queries = array(); |
506 |
|
507 | foreach ( $comment_ids as $comment_id ) { |
508 | delete_comment_meta( $comment_id, 'akismet_as_submitted' ); |
509 | do_action( 'akismet_batch_delete_count', __FUNCTION__ ); |
510 | } |
511 |
|
512 | do_action( 'akismet_delete_commentmeta_batch', count( $comment_ids ) ); |
513 | } |
514 |
|
515 | if ( apply_filters( 'akismet_optimize_table', ( mt_rand(1, 5000) == 11), $wpdb->commentmeta ) ) // lucky number |
516 | $wpdb->query("OPTIMIZE TABLE {$wpdb->commentmeta}"); |
517 | } |
518 |
|
Line | Code |
529 | return; |
530 |
|
531 | $wpdb->queries = array(); |
532 |
|
533 | $commentmeta_deleted = 0; |
534 |
|
535 | foreach ( $commentmeta_results as $commentmeta ) { |
536 | if ( 'akismet_' == substr( $commentmeta->meta_key, 0, 8 ) ) { |
537 | delete_comment_meta( $commentmeta->comment_id, $commentmeta->meta_key ); |
538 | do_action( 'akismet_batch_delete_count', __FUNCTION__ ); |
539 | $commentmeta_deleted++; |
540 | } |
541 |
|
542 | $last_meta_id = $commentmeta->meta_id; |
543 | } |
544 |
|
545 | do_action( 'akismet_delete_commentmeta_batch', $commentmeta_deleted ); |
546 |
|
547 | // If we're getting close to max_execution_time, quit for this round. |