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<?php
class WPML_Post_Comments extends WPML_WPDB_User {
/**
* @param wpdb $wpdb
*/
public function __construct( &$wpdb ) {
parent::__construct( $wpdb );
$this->hooks();
}
private function hooks() {
add_action( 'wpml_troubleshooting_after_setup_complete_cleanup_end', array( $this, 'troubleshooting_action' ) );
add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_scripts' ) );
add_action( 'wp_ajax_wpml_count_orphans', array( $this, 'count_orphans_action' ) );
add_action( 'wp_ajax_wpml_delete_orphans', array( $this, 'delete_orphans_action' ) );
}
public function count_orphans_action() {
if ( wpml_is_action_authenticated( 'wpml_orphan_comment' ) ) {
wp_send_json_success( $this->get_orphan_comments( true ) );
} else {
wp_send_json_error( 'Wrong Nonce' );
}
}
public function get_orphan_comments( $return_count = false, $limit = 10 ) {
if ( $return_count ) {
$columns = 'count(c.comment_id)';
} else {
$columns = 'DISTINCT c.comment_id';
}
$sql = "
SELECT {$columns}
FROM {$this->wpdb->prefix}comments c
INNER JOIN {$this->wpdb->prefix}icl_translations tc
ON c.comment_id = tc.element_id
INNER JOIN {$this->wpdb->posts} p
ON c.comment_post_ID = p.ID
INNER JOIN {$this->wpdb->prefix}icl_translations tp
ON p.ID = tp.element_id
AND CONCAT('post_', p.post_type) = tp.element_type
WHERE tc.element_type = 'comment'
AND tp.language_code <> tc.language_code
LIMIT 0, %d
";
$sql_prepared = $this->wpdb->prepare( $sql, $limit );
if ( $return_count ) {
$results = $this->wpdb->get_var( $sql_prepared );
} else {
$comments = $this->wpdb->get_col( $sql_prepared );
$num_rows = $this->wpdb->num_rows;
$results = array( $comments, $num_rows );
}
return $results;
}
public function delete_orphans_action() {
if ( wpml_is_action_authenticated( 'wpml_orphan_comment' ) ) {
$result = false;
$data = $_POST[ 'data' ];
$how_many = null;
if ( isset( $data[ 'how_many' ] ) && is_numeric( $data[ 'how_many' ] ) ) {
$how_many = (int) $data[ 'how_many' ];
}
if ( $how_many ) {
$result = $this->delete_orphans( $how_many );
}
wp_send_json_success( $result );
} else {
wp_send_json_error( 'Wrong Nonce' );
}
}
public function enqueue_scripts( $hook ) {
wp_register_script( 'wpml-orphan-comments', ICL_PLUGIN_URL . '/res/js/orphan-comments.js', array( 'jquery' ), ICL_SITEPRESS_VERSION, true );
if ( $hook == basename( ICL_PLUGIN_PATH ) . '/menu/troubleshooting.php' ) {
wp_enqueue_script( 'wpml-orphan-comments' );
}
}
public function troubleshooting_action() {
echo PHP_EOL . '<div id="wpml_orphans">';
echo PHP_EOL . ' <h4>' . __( "Remove comments that don't match the content's language", 'sitepress' ) . '</h4>';
echo PHP_EOL . ' <div id="wpml_orphans_count" style="display:none;">';
echo PHP_EOL . ' <p>';
echo PHP_EOL . ' ' . sprintf( __( "This will check for comments that have a language different than the content they belong to. If found, we can delete these comments for you. We call these 'orphan comments'.", 'sitepress' ), '<span class="count">0</span>' );
echo PHP_EOL . ' </p>';
echo PHP_EOL . ' <p>';
echo PHP_EOL . ' <button type="button" class="button-secondary check-orphans">' . __( 'Check for orphan comments', 'sitepress' ) . '</button>';
echo PHP_EOL . ' </p>';
echo PHP_EOL . ' <div class="count-in-progress">';
echo PHP_EOL . ' <span class="spinner is-active" style="float:none;"></span>';
echo PHP_EOL . ' ' . __( 'Checking...', 'sitepress' );
echo PHP_EOL . ' </div>';
echo PHP_EOL . ' <div class="no_orphans">';
echo PHP_EOL . ' <br>';
echo PHP_EOL . ' ' . __( 'Good news! Your site has no orphan comments.', 'sitepress' );
echo PHP_EOL . ' </div>';
echo PHP_EOL . ' <div class="orphans-check-results">';
echo PHP_EOL . ' <p>';
echo PHP_EOL . ' <br>';
echo PHP_EOL . ' ' . sprintf( __( '%s orphan comments found.', 'sitepress' ), '<span class="count">0</span>' );
echo PHP_EOL . ' </p>';
echo PHP_EOL . ' <p>';
echo PHP_EOL . ' <button type="button" class="button-secondary clean-orphans">' . __( 'Clean orphan comments', 'sitepress' ) . '</button>';
echo PHP_EOL . ' </p>';
echo PHP_EOL . ' <p>';
echo PHP_EOL . ' ' . __( '* The clean task may take several minutes to complete.', 'sitepress' );
echo PHP_EOL . ' </p>';
echo PHP_EOL . ' <div class="delete-in-progress">';
echo PHP_EOL . ' <span class="spinner is-active" style="float:none;"></span> ' . __( 'Deleted comments:', 'sitepress' ) . ' <span class="deleted">0</span>';
echo PHP_EOL . ' </div>';
echo PHP_EOL . ' </div>';
wp_nonce_field('wpml_orphan_comment_nonce','wpml_orphan_comment_nonce');
echo PHP_EOL . ' </div>';
echo PHP_EOL . '</div>';
}
public function delete_orphans( $how_many ) {
$results = $this->get_orphan_comments( false, $how_many );
$comment_ids = $results[ 0 ];
$deleted_comments = 0;
if ( $comment_ids ) {
$comment_ids = implode( ',', $comment_ids );
$post_ids = $this->get_post_ids_from_comments_ids( $comment_ids );
$deleted_comments += $this->wpdb->query( "DELETE FROM {$this->wpdb->comments} WHERE comment_ID IN( {$comment_ids} )" );
$this->wpdb->query( "DELETE FROM {$this->wpdb->commentmeta} WHERE comment_ID IN( {$comment_ids} )" );
$this->wpdb->query( "DELETE FROM {$this->wpdb->prefix}icl_translations WHERE element_id IN( {$comment_ids} ) AND element_type = 'comment'" );
$this->update_comments_count( $post_ids );
}
return $deleted_comments;
}
/**
* @param $post_ids
*/
private function update_comments_count( $post_ids ) {
foreach ( $post_ids as $post_id ) {
wp_update_comment_count( $post_id );
}
}
/**
* @param string|array|int $comment_ids
*
* @return mixed
*/
private function get_post_ids_from_comments_ids( $comment_ids ) {
if ( is_numeric( $comment_ids ) ) {
$comment_ids = array( $comment_ids );
}
if ( is_array( $comment_ids ) ) {
$comment_ids = implode( ',', $comment_ids );
}
return $this->wpdb->get_col( "SELECT DISTINCT comment_post_ID FROM {$this->wpdb->comments} WHERE comment_ID IN( {$comment_ids} )" );
}
}
global $wpdb;
new WPML_Post_Comments( $wpdb );
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