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<?php
use WCML\Utilities\DB;
use WPML\FP\Fns;
use WPML\FP\Obj;
use WPML\Convert\Ids;
class WCML_Comments {
const WCML_AVERAGE_RATING_KEY = '_wcml_average_rating';
const WCML_RATING_COUNT_KEY = '_wcml_rating_count';
const WCML_REVIEW_COUNT_KEY = '_wcml_review_count';
const WC_AVERAGE_RATING_KEY = '_wc_average_rating';
const WC_RATING_COUNT_KEY = '_wc_rating_count';
const WC_REVIEW_COUNT_KEY = '_wc_review_count';
/** @var woocommerce_wpml */
private $woocommerce_wpml;
/** @var SitePress */
private $sitepress;
/** @var WPML_Post_Translation */
private $post_translations;
/** @var wpdb */
private $wpdb;
/**
* WCML_Comments constructor.
*
* @param woocommerce_wpml $woocommerce_wpml
* @param SitePress $sitepress
* @param WPML_Post_Translation $post_translations
* @param wpdb $wpdb
*/
public function __construct( woocommerce_wpml $woocommerce_wpml, SitePress $sitepress, WPML_Post_Translation $post_translations, wpdb $wpdb ) {
$this->woocommerce_wpml = $woocommerce_wpml;
$this->sitepress = $sitepress;
$this->post_translations = $post_translations;
$this->wpdb = $wpdb;
}
public function add_hooks() {
add_action( 'wp_insert_comment', [ $this, 'add_comment_rating' ] );
add_action( 'woocommerce_review_before_comment_meta', [ $this, 'add_comment_flag' ], 9 );
add_action( 'woocommerce_review_before_comment_text', [ $this, 'open_lang_div' ] );
add_action( 'woocommerce_review_after_comment_text', [ $this, 'close_lang_div' ] );
add_action( 'added_comment_meta', [ $this, 'maybe_duplicate_comment_rating' ], 10, 4 );
add_filter( 'get_post_metadata', [ $this, 'filter_average_rating' ], 10, 4 );
add_filter( 'comments_clauses', [ $this, 'comments_clauses' ], 10, 2 );
add_action( 'comment_form_before', [ $this, 'comments_link' ] );
add_filter( 'wpml_is_comment_query_filtered', [ $this, 'is_comment_query_filtered' ], 10, 3 );
add_action( 'trashed_comment', [ $this, 'recalculate_average_rating_on_comment_hook' ], 10, 2 );
add_action( 'deleted_comment', [ $this, 'recalculate_average_rating_on_comment_hook' ], 10, 2 );
add_action( 'untrashed_comment', [ $this, 'recalculate_average_rating_on_comment_hook' ], 10, 2 );
// before WCML_Synchronize_Product_Data::sync_product_translations_visibility hook.
add_action(
'woocommerce_product_set_visibility',
Fns::withoutRecursion( Fns::noop(), [ $this, 'recalculate_comment_rating' ] ),
9
);
if ( ! defined( 'WPSEO_VERSION' )
&& 'all' === WPML\FP\Obj::prop( 'clang', $_GET )
&& ! $this->is_reviews_in_all_languages_by_default_selected()
) {
add_action( 'wp_head', [ $this, 'no_index_all_reviews_page' ], 10 );
}
add_filter( 'woocommerce_top_rated_products_widget_args', [ $this, 'top_rated_products_widget_args' ] );
add_filter( 'woocommerce_rating_filter_count', [ $this, 'woocommerce_rating_filter_count' ], 10, 3 );
add_filter( 'the_comments', [ $this, 'translate_product_ids' ] );
}
/**
* Add comment rating
*
* @param int $comment_id
*/
public function add_comment_rating( $comment_id ) {
if ( isset( $_POST['comment_post_ID'] ) ) {
$product_id = sanitize_text_field( $_POST['comment_post_ID'] );
if ( 'product' === get_post_type( $product_id ) ) {
$this->recalculate_comment_rating( $product_id );
}
}
}
/**
* Calculate rating field for comments based on reviews in all languages.
*
* @param int $product_id
*/
public function recalculate_comment_rating( $product_id ) {
$translations = $this->post_translations->get_element_translations( $product_id );
$average_ratings_sum = 0;
$average_ratings_count = 0;
$reviews_count = 0;
$ratings_count = [];
foreach ( $translations as $translation ) {
$product = wc_get_product( $translation );
if ( ! $product ) {
continue;
}
$ratings = WC_Comments::get_rating_counts_for_product( $product );
$review_count = WC_Comments::get_review_count_for_product( $product );
if ( is_array( $ratings ) ) {
foreach ( $ratings as $rating => $count ) {
$average_ratings_sum += $rating * $count;
$average_ratings_count += $count;
if ( isset( $ratings_count[ $rating ] ) ) {
$ratings_count[ $rating ] += $count;
} else {
$ratings_count[ $rating ] = $count;
}
}
}
if ( $review_count ) {
$reviews_count += $review_count;
} else {
update_post_meta( $translation, self::WCML_AVERAGE_RATING_KEY, null );
update_post_meta( $translation, self::WCML_REVIEW_COUNT_KEY, null );
update_post_meta( $translation, self::WCML_RATING_COUNT_KEY, null );
}
}
if ( $average_ratings_sum ) {
$average_rating = number_format( $average_ratings_sum / $average_ratings_count, 2, '.', '' );
foreach ( $translations as $translation ) {
update_post_meta( $translation, self::WCML_AVERAGE_RATING_KEY, $average_rating );
update_post_meta( $translation, self::WCML_REVIEW_COUNT_KEY, $reviews_count );
update_post_meta( $translation, self::WCML_RATING_COUNT_KEY, $ratings_count );
WC_Comments::clear_transients( $translation );
}
}
}
/**
* Filter WC reviews meta.
*
* @param null|array|string $value get_metadata() should return a single value or array of values.
* @param int $object_id Post ID.
* @param string $meta_key Meta key.
* @param bool $single
*
* @return array|null|string Filtered metadata value, array of values, or null.
*/
public function filter_average_rating( $value, $object_id, $meta_key, $single ) {
$filtered_value = $value;
if ( in_array( $meta_key, [ self::WC_AVERAGE_RATING_KEY, self::WC_REVIEW_COUNT_KEY, self::WC_RATING_COUNT_KEY ], true ) && 'product' === get_post_type( $object_id ) ) {
if ( ! metadata_exists( 'post', $object_id, self::WCML_RATING_COUNT_KEY ) ) {
$this->recalculate_comment_rating( $object_id );
}
switch ( $meta_key ) {
case self::WC_AVERAGE_RATING_KEY:
$filtered_value = get_post_meta( $object_id, self::WCML_AVERAGE_RATING_KEY, $single );
if ( empty( $filtered_value ) ) {
$filtered_value = 0;
}
break;
case self::WC_REVIEW_COUNT_KEY:
if ( $this->is_reviews_in_all_languages( $object_id ) ) {
$filtered_value = get_post_meta( $object_id, self::WCML_REVIEW_COUNT_KEY, $single );
}
break;
case self::WC_RATING_COUNT_KEY:
$filtered_value = get_post_meta( $object_id, self::WCML_RATING_COUNT_KEY, $single );
if ( $single ) {
$filtered_value = [ $filtered_value ];
}
break;
}
}
return ! empty( $filtered_value ) || $filtered_value === 0 ? $filtered_value : $value;
}
/**
* Filters comment queries to display in all languages if needed
*
* @param string[] $clauses
* @param WP_Comment_Query $obj
*
* @return string[]
*/
public function comments_clauses( $clauses, $obj ) {
if ( $this->is_reviews_in_all_languages( $obj->query_vars['post_id'] ) ) {
$ids = $this->get_translations_ids( $obj->query_vars['post_id'] );
$clauses['where'] = str_replace( 'comment_post_ID = ' . $obj->query_vars['post_id'], 'comment_post_ID IN (' . DB::prepareIn( $ids, '%d' ) . ')', $clauses['where'] );
}
return $clauses;
}
/**
* Get list of translated ids for product
*
* @param int $product_id
*
* @return array
*/
private function get_translations_ids( $product_id ) {
$translations = $this->post_translations->get_element_translations( $product_id );
return array_filter( $translations );
}
/**
* Display link to show rating in all/current language
*/
public function comments_link() {
if ( is_product() ) {
if ( $this->is_reviews_in_all_languages( get_the_ID() ) ) {
$this->show_link_to_current_language_reviews();
} else {
$this->show_link_to_all_reviews();
}
}
}
/**
* @return bool
*/
private function is_reviews_in_all_languages_by_default_selected() {
return (bool) $this->woocommerce_wpml->get_setting( 'reviews_in_all_languages', false );
}
/**
* Echoes link to product page with all reviews.
*/
private function show_link_to_all_reviews() {
$comments_link = add_query_arg( [ 'clang' => 'all' ] );
$all_languages_reviews_count = $this->get_reviews_count( 'all' );
$current_language_reviews_count = $this->get_reviews_count();
if ( $all_languages_reviews_count > $current_language_reviews_count ) {
/* translators: %s is the number of reviews */
$comments_link_text = sprintf( __( 'Show reviews in all languages (%s)', 'woocommerce-multilingual' ), $all_languages_reviews_count );
echo '<p><a id="lang-comments-link" href="' . $comments_link . '" rel="nofollow" class="all-languages-reviews" >' . $comments_link_text . '</a></p>';
}
}
/**
* Echoes link to product page with reviews in current language.
*/
private function show_link_to_current_language_reviews() {
$current_language_reviews_count = $this->get_reviews_count();
$current_language = $this->sitepress->get_current_language();
$comments_link = add_query_arg( [ 'clang' => $current_language ] );
$language_details = $this->sitepress->get_language_details( $current_language );
/* translators: %1$s is a language name and %2$s is the number of reviews */
$comments_link_text = sprintf( __( 'Show only reviews in %1$s (%2$s)', 'woocommerce-multilingual' ), $language_details['display_name'], $current_language_reviews_count );
echo '<p><a id="lang-comments-link" href="' . $comments_link . '" rel="nofollow" class="current-language-reviews" >' . $comments_link_text . '</a></p>';
}
/**
* Checks if comments needs filtering by language.
*
* @param bool $filtered
* @param int $post_id
* @param WP_Comment_Query $comment_query
* @return bool
*/
public function is_comment_query_filtered( $filtered, $post_id, $comment_query = null ) {
if ( $this->is_reviews_in_all_languages( $post_id, $comment_query ) ) {
$filtered = false;
}
return $filtered;
}
/**
* Add flag to comment description
*
* @param WP_Comment $comment
*/
public function add_comment_flag( $comment ) {
$comment_language = $this->get_comment_language_on_all_languages_reviews( $comment );
if ( $comment_language ) {
printf(
'<div style="float: left; padding: 6px 5px 0 0;"><img src="%s" width="18" height="12" alt="%s"></div>',
esc_url( $this->sitepress->get_flag_url( $comment_language ) ),
esc_attr( $this->sitepress->get_display_language_name( $comment_language ) )
);
}
}
/**
* @param WP_Comment $comment
*/
public function open_lang_div( $comment ) {
$comment_language = $this->get_comment_language_on_all_languages_reviews( $comment );
if ( $comment_language ) {
printf( '<div lang="%s">', $comment_language );
if ( self::is_translated( $comment ) ) {
echo '<span class="wcml-review-translated">(' . esc_html__( 'translated', 'woocommerce-multilingual' ) . ')</span>';
}
}
}
/**
* @param WP_Comment $comment
*/
public function close_lang_div( $comment ) {
if ( $this->get_comment_language_on_all_languages_reviews( $comment ) ) {
print( '</div>' );
}
}
/**
* Return review language code only if it displayed on mulilingual reviews list.
*
* @param WP_Comment $comment
* @return string|null Review language or null.
*/
private function get_comment_language_on_all_languages_reviews( $comment ) {
if ( self::is_translated( $comment ) ) {
return $this->sitepress->get_current_language();
} elseif ( $this->is_reviews_in_all_languages( $comment->comment_post_ID ) ) {
return $this->post_translations->get_element_lang_code( $comment->comment_post_ID );
}
return null;
}
/**
* Checks if reviews in all languages should be displayed.
*
* @param int $product_id
* @param WP_Comment_Query $comment_query
*
* @return bool
*/
public function is_reviews_in_all_languages( $product_id, $comment_query = null ) {
$reviewsLang = Obj::prop( 'clang', $_GET );
$post_type = Obj::path( [ 'query_vars', 'post_type' ], $comment_query );
if ( ! $post_type && $product_id ) {
$post_type = get_post_type( $product_id );
}
return (
'all' === $reviewsLang
|| ( ! $reviewsLang && $this->is_reviews_in_all_languages_by_default_selected() )
) && 'product' === $post_type;
}
/**
* Return reviews count in language
*
* @param string|false $language
*
* @return int
*/
public function get_reviews_count( $language = false ) {
remove_filter( 'get_post_metadata', [ $this, 'filter_average_rating' ], 10 );
if ( ! metadata_exists( 'post', get_the_ID(), self::WCML_REVIEW_COUNT_KEY ) ) {
$this->recalculate_comment_rating( get_the_ID() );
}
if ( 'all' === $language ) {
$reviews_count = get_post_meta( get_the_ID(), self::WCML_REVIEW_COUNT_KEY, true );
} else {
$reviews_count = get_post_meta( get_the_ID(), self::WC_REVIEW_COUNT_KEY, true );
}
add_filter( 'get_post_metadata', [ $this, 'filter_average_rating' ], 10, 4 );
return $reviews_count;
}
/**
* @param int $comment_id
* @param WP_Comment|null $comment
*/
public function recalculate_average_rating_on_comment_hook( $comment_id, $comment ) {
if ( ! $comment ) {
$comment = get_comment( $comment_id );
}
if ( in_array( get_post_type( $comment->comment_post_ID ), [ 'product', 'product_variation' ] ) ) {
$this->recalculate_comment_rating( (int) $comment->comment_post_ID );
}
}
/**
* @param array $args
*
* @return array
*/
public function top_rated_products_widget_args( $args ) {
$args['meta_key'] = self::WCML_AVERAGE_RATING_KEY;
return $args;
}
/**
* @param string $label
* @param int $count
* @param int $rating
*
* @return string
*/
public function woocommerce_rating_filter_count( $label, $count, $rating ) {
$ratingTerm = get_term_by( 'name', 'rated-' . $rating, 'product_visibility' );
$productsCountInCurrentLanguage = $this->wpdb->get_var( $this->wpdb->prepare( "
SELECT COUNT( DISTINCT tr.object_id )
FROM {$this->wpdb->term_relationships} tr
LEFT JOIN {$this->wpdb->prefix}icl_translations t ON t.element_id = tr.object_id
WHERE tr.term_taxonomy_id = %d AND t.element_type='post_product' AND t.language_code = %s
", $ratingTerm->term_taxonomy_id, $this->sitepress->get_current_language() ) );
return "({$productsCountInCurrentLanguage})";
}
/**
* @param int $meta_id
* @param int $comment_id
* @param string $meta_key
* @param string $meta_value
*/
public function maybe_duplicate_comment_rating( $meta_id, $comment_id, $meta_key, $meta_value ) {
if ( 'rating' === $meta_key && wpml_get_setting_filter( null, 'sync_comments_on_duplicates' ) ) {
remove_action( 'added_comment_meta', [ $this, 'maybe_duplicate_comment_rating' ], 10 );
foreach ( $this->get_duplicated_comments( $comment_id ) as $duplicate ) {
add_comment_meta( $duplicate, 'rating', $meta_value );
}
$product_id = get_comment( $comment_id )->comment_post_ID;
$this->recalculate_comment_rating( $product_id );
add_action( 'added_comment_meta', [ $this, 'maybe_duplicate_comment_rating' ], 10, 4 );
}
}
/**
* @param int $comment_id
*
* @return array
*/
private function get_duplicated_comments( $comment_id ) {
return $this->wpdb->get_col(
$this->wpdb->prepare(
"SELECT comment_id
FROM {$this->wpdb->commentmeta}
WHERE meta_key = '_icl_duplicate_of'
AND meta_value = %d", $comment_id
)
);
}
public function no_index_all_reviews_page() {
echo '<meta name="robots" content="noindex">';
}
/**
* @param WP_Comment[] $comments
*
* @return WP_Comment[]
*/
public function translate_product_ids( $comments ) {
$convertProductId = function( $comment ) {
if ( 'review' === Obj::prop( 'comment_type', $comment ) ) {
$comment = Obj::assoc(
'comment_post_ID',
Ids::convert( Obj::prop( 'comment_post_ID', $comment ), 'product', true ),
$comment
);
}
return $comment;
};
return wpml_collect( $comments )
->map( $convertProductId )
->toArray();
}
/**
* @see \WCML\Reviews\Translations::translateReview
*
* @param WP_Comment $comment
*
* @return bool
*/
private static function is_translated( $comment ) {
return (bool) Obj::prop( 'is_translated', $comment );
}
}