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