gocodebox/lifterlms

<?php
/**
 * LLMS_Controller_Quizzes class file
 *
 * @package LifterLMS/Controllers/Classes
 *
 * @since 3.9.0
 * @version 5.1.0
 */

defined( 'ABSPATH' ) || exit;

/**
 * Quiz related form controller
 *
 * @since 3.9.0
 * @since 5.0.0 Removed previously deprecated method `LLMS_Controller_Quizzes::take_quiz()`.
 */
class LLMS_Controller_Quizzes {

    /**
     * Constructor
     *
     * @since 3.9.0
     * @since 3.37.8 Add reporting actions handler action.
     * @since 4.14.0 Remove `add_action()` for deprecated `take_quiz()` method.
     *
     * @return void
     */
    public function __construct() {

        add_action( 'admin_init', array( $this, 'maybe_handle_reporting_actions' ) );

    }

    /**
     * Handle quiz reporting screen actions buttons
     *
     * On the quiz reporting screen this allows orphaned quizzes to be deleted.
     *
     * @since 3.37.8
     * @since 5.1.0 Use a deep orphan check to determine if the quiz can be deleted.
     *
     * @return null|false|WP_Post `null` if the form wasn't submitted or the nonce couldn't be verified.
     *                            `false` if an error was encountered.
     *                            `WP_Post` of the deleted quiz on success.
     */
    public function maybe_handle_reporting_actions() {

        if ( ! llms_verify_nonce( '_llms_quiz_actions_nonce', 'llms-quiz-actions' ) ) {
            return null;
        }

        $id = llms_filter_input( INPUT_POST, 'llms_del_quiz', FILTER_SANITIZE_NUMBER_INT );
        if ( $id && 'llms_quiz' === get_post_type( $id ) ) {
            $quiz = llms_get_post( $id );
            if ( $quiz && ( $quiz->is_orphan( true ) || ! $quiz->get_course() ) ) {
                return wp_delete_post( $id, true );
            }
        }

        return false;

    }

}

return new LLMS_Controller_Quizzes();