How to validate if the user is already enrolled into the course?

I am creating an LMS using Learndash + Woocommerce plugin. I am struggle to achieve on validate that the user is already enrolled to the course. For example, the user want to buy the Course A so when the user click the Add to Cart button, a message will said “You’ve already enrolled into Course A”. Then the user will select Course C then it will add to their cart. When I run my code to the website, it didn’t allow to add to the cart. It will show me a message “You’ve already enrolled to the course”.

function validate_user_enrolled($courses, $current_user) {
    $current_user = wp_get_current_user();
    $courses = learndash_user_get_enrolled_courses($current_user -> ID, 
    array(), false);
    /* $lessons = learndash_get_course_lessons_list( $courses[0],  $current_user -> ID,  
    array(), false); */

    //Check if this user is already enrolled on this course.
    if(sfwd_lms_has_access($courses, $current_user -> ID) ) { 
        wc_add_notice( __( 'You have already enrolled. ' , 'woocommerce' ), 'error' );
        return false; // course already taken
    }
    
    return true; // course not taken
    
}
add_action('woocommerce_add_to_cart_validation', 'validate_user_enrolled', 10, 2);

• This topic was modified 2 years, 9 months ago by ramon135.