public function get_content()
{
global $COURSE, $USER;
if ($this->content !== null) {
return $this->content;
}
$this->content = new stdClass();
$this->content->text = var_export($this->context, true);
$coursecontext = context_course::instance($COURSE->id);
if (has_capability('block/demostudent:addinstance', $coursecontext)) {
// If DemoStudent has not yet been enrolled, allow user to create/enrol one.
$demostudentusername = generate_demostudent_name($USER->username);
$demostudentuser = get_complete_user_data('username', $demostudentusername);
if (!$demostudentuser || !is_enrolled($coursecontext, $demostudentuser)) {
$this->render_view('firstuse');
} else {
$this->render_view('instructor');
}
} else {
if (has_capability('block/demostudent:seedemostudentblock', $coursecontext)) {
$this->render_view('demostudent');
} else {
// If the user does not need to see the block, do not display it at all.
$this->content->text = '';
$this->content->footer = '';
}
}
return $this->content;
}
require_login($courseid);
$PAGE->set_url('/blocks/demostudent/remove.php', array('viewrole' => $viewrole, 'courseid' => $courseid, 'confirm' => $confirm));
$coursecontext = context_course::instance($courseid);
if ($viewrole != 'instructor') {
print get_string('errorremovenotinstructor', 'block_demostudent');
require_logout();
redirect(new moodle_url($url, array('redirect' => 1)));
}
// If we do not have the capability to add this block, we likely landed here by accident or malice.
if (!has_capability('block/demostudent:addinstance', $coursecontext)) {
// Test this as above, but start from a student account instead of DemoStudent.
print get_string('errormissingaddinstancecapability', 'block_demostudent');
require_logout();
redirect(new moodle_url($url, array('redirect' => 1)));
}
$demostudentusername = generate_demostudent_name($username);
$demostudentuser = get_complete_user_data('username', $demostudentusername);
if (!$demostudentuser) {
redirect(new moodle_url($url, array('redirect' => 1)));
}
if ($confirm) {
// Unenrol DemoStudent from the course.
if (!enrol_is_enabled('manual')) {
redirect(new moodle_url($url, array('redirect' => 1)));
}
if (!($enrol = enrol_get_plugin('manual'))) {
redirect(new moodle_url($url, array('redirect' => 1)));
}
if (!($instances = $DB->get_records('enrol', array('enrol' => 'manual', 'courseid' => $courseid, 'status' => ENROL_INSTANCE_ENABLED), 'sortorder,id ASC'))) {
redirect(new moodle_url($url, array('redirect' => 1)));
}
