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Introduce 'duplicate_comment_id' filter.

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`wp_allow_comment()` disallows a comment if it matches a comment on the same
post with the same content, author email, and parent. This new filter allows
developers to circumvent or modify this logic, making the duplicate check
more or less lenient, as they see fit.

Fixes #9775.

git-svn-id: https://develop.svn.wordpress.org/trunk@34536 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Boone Gorges 2015-09-25 05:22:53 +00:00
parent 7e44a2fef7
commit 93d781343a
1 changed files with 16 additions and 1 deletions
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17
src/wp-includes/comment-functions.php
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@ -590,7 +590,22 @@ function wp_allow_comment( $commentdata ) {
") AND comment_content = %s LIMIT 1",
wp_unslash( $commentdata['comment_content'] )
);
if ( $wpdb->get_var( $dupe ) ) {
$dupe_id = $wpdb->get_var( $dupe );
/**
* Filters the ID, if any, of the duplicate comment found when creating a new comment.
*
* Return an empty value from this filter to allow what WP considers a duplicate comment.
*
* @since 4.4.0
*
* @param int $dupe_id ID of the comment identified as a duplicate.
* @param array $commentdata Data for the comment being created.
*/
$dupe_id = apply_filters( 'duplicate_comment_id', $dupe_id, $commentdata );
if ( $dupe_id ) {
/**
* Fires immediately after a duplicate comment is detected.
*