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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.
Line | Code |
---|---|
685 | * Returning a WP_Error value from the filter will short-circuit insertion and allow |
686 | * skipping further processing. |
687 | * |
688 | * @since 4.7.0 |
689 | * @since 4.8.0 `$prepared_comment` can now be a WP_Error to short-circuit insertion. |
690 | * |
691 | * @param array|WP_Error $prepared_comment The prepared comment data for wp_insert_comment(). |
692 | * @param WP_REST_Request $request Request used to insert the comment. |
693 | */ |
694 | $prepared_comment = apply_filters( 'rest_pre_insert_comment', $prepared_comment, $request ); |
695 | if ( is_wp_error( $prepared_comment ) ) { |
696 | return $prepared_comment; |
697 | } |
698 |
|
699 | $comment_id = wp_insert_comment( wp_filter_comment( wp_slash( (array) $prepared_comment ) ) ); |
700 |
|
701 | if ( ! $comment_id ) { |
702 | return new WP_Error( |
703 | 'rest_comment_failed_create', |