Comment.php
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<?php
namespace ACP\Export\Strategy;
use AC\ListScreen;
use ACP\Export\Strategy;
use WP_Comment_Query;
/**
* Exportability class for comments list screen
* @property ListScreen\Comment $list_screen
*/
class Comment extends Strategy {
public function __construct( ListScreen\Comment $list_screen ) {
parent::__construct( $list_screen );
}
protected function ajax_export(): void {
add_action( 'parse_comment_query', [ $this, 'comments_query' ], PHP_INT_MAX - 100 );
}
/**
* Catch the comments query and run it with altered parameters for pagination. This should be
* attached to the parse_comment_query hook when an AJAX request is sent
*
* @param $query
*
* @see action:pre_get_posts
* @since 1.0
*/
public function comments_query( $query ): void {
if ( $query->query_vars['count'] ) {
return;
}
remove_action( 'parse_comment_query', [ $this, __FUNCTION__ ], PHP_INT_MAX - 100 );
$per_page = $this->get_num_items_per_iteration();
$query->query_vars['offset'] = $this->get_export_counter() * $per_page;
$query->query_vars['number'] = $per_page;
$query->query_vars['fields'] = 'ids';
$ids = $this->get_requested_ids();
if ( $ids ) {
$query->query_vars['comment__in'] = isset( $query->query_vars['comment__in'] )
? array_merge( $ids, (array) $query->query_vars['comment__in'] )
: $ids;
}
$modified_query = new WP_Comment_Query( $query->query_vars );
$comments = $modified_query->get_comments();
$this->export( $comments );
}
}