Question

在启用Moodle的网站上，我想为用户提供一些优惠券。

我检查了用户是否已登录，但我还想检查当前登录用户是否在特定课程（3个课程ID的数组）中进行了编辑。

到目前为止，我尝试使用$USER->currentcourseaccess或$USER-> lastcourseaccess，但他们没有做到这一点。

那么，如何检查当前登录的用户是否在特定的Moodle课程中注册？

修改：该网站使用 Moodle 2 。

Answer 1

我只是使用这个简单的2行解决方案（使用课程和用户ID）：

global $USER;

$context = get_context_instance(CONTEXT_COURSE, $courseid, MUST_EXIST);
$enrolled = is_enrolled($context, $USER->id, '', true);

Answer 2

您需要先获取课程上下文，然后根据该上下文中具有特定角色ID的已注册用户列表检查您的用户（Student的默认角色ID为5）。如果是Moodle 2.0+ API，您可以在不直接查询数据库的情况下执行此操作：

$context = get_context_instance(CONTEXT_COURSE, $course_id);
$students = get_role_users(5, $context);

在Moodle 1.9中，您需要手动从数据库中获取内容：

首先mdl_contexts表格contextlevel = CONTEXT_COURSE (CONTEXT_COURSE = 50)和instanceid = <id of course>
然后使用mdl_role_assignments和contextid = <first result>

roleid = 5

Answer 3

you can also run this sql command:

SELECT c.id AS id, c.fullname,c.shortname, u.username, u.firstname, 
u.lastname, u.email
FROM mdl_role_assignments ra, mdl_user u, mdl_course c, mdl_context cxt
WHERE ra.userid = u.id
AND ra.contextid = cxt.id
AND cxt.contextlevel = 50
AND cxt.instanceid = c.id
AND u.username = 'User_Username'
AND c.shortname = 'Course_Shortname'
AND (roleid =5 OR roleid=3);

this should check if the user with user name 'User_Username' is enrolled in the course with shortname 'Course_Shortname' as student or teacher

hope it helps.

Answer 4

注册检查代码段：

function check_enrollment($username, $course){ 
    global $DB;
    $sql = "SELECT count(*)
            FROM mdl_user_enrolments a,
            mdl_enrol b,
            mdl_user c

            WHERE c.username='$username'
            AND a.userid=c.id
            AND b.courseid=$course
            AND a.enrolid=b.id";
    $n = $DB->count_records_sql($sql);
    if($n==0) {
        //user not enrolled
        return False;
    } elseif($n==1) {
        //user already enrolled
        return True;
    } else { 
        //, bad data ie<Data sanity not maintained>
        add_to_log($course, 'ERROR: check-enrollment', 'Entered into mordor code block');
        return False;
    } 
}

检查用户是否注册了特定的Moodle课程

4 个答案: