public function mail_to_course($course_id)
{
$course = new Course();
$course->include_related('period', 'name');
$course->get_by_id((int) $course_id);
if ($course->exists()) {
$groups = new Group();
$groups->where_related_course('id', $course->id);
$groups->order_by_with_constant('name', 'asc');
$groups->get_iterated();
$groups_students = array();
foreach ($groups as $group) {
$groups_students[$group->id] = array('name' => $group->name, 'students' => array());
}
$groups_students[0] = array('name' => 'lang:admin_courses_mail_to_course_group_name_unassigned_students', 'students' => array());
$participants = new Participant();
$participants->where('allowed', 1);
$participants->include_related('student');
$participants->where_related_course('id', $course->id);
$participants->order_by_related_as_fullname('student', 'fullname', 'asc');
$participants->get_iterated();
foreach ($participants as $participant) {
$groups_students[(int) $participant->group_id]['students'][(int) $participant->student_id] = array('fullname' => $participant->student_fullname, 'email' => $participant->student_email);
}
$this->parser->assign('groups_students', $groups_students);
}
$this->_add_tinymce4();
$this->parser->add_js_file('admin_courses/mail_form.js');
$this->parser->add_css_file('admin_courses.css');
$this->parser->parse('backend/courses/mail_to_course.tpl', array('course' => $course));
}
public function change_group($participant_id)
{
$group_id = $this->input->post('group_id');
$this->_transaction_isolation();
$this->db->trans_begin();
$participant = new Participant();
$participant->get_by_id($participant_id);
$group = new Group();
$group->get_by_id($group_id);
$course = $participant->course->get();
if ($group->exists()) {
if ($group->is_related_to($course)) {
$participant->save($group);
}
} else {
$current_group = $participant->group->get();
$participant->delete($current_group);
}
$is_ok = TRUE;
if ($group->exists()) {
if ($participant->allowed == 1) {
$group_for_test = new Group();
$rooms = $group_for_test->room;
$rooms->select_min('capacity');
$rooms->where('group_id', '${parent}.id', FALSE);
$group_for_test->select_subquery($rooms, 'group_capacity');
$group_for_test->include_related_count('participant');
$group_for_test->where_related_participant('allowed', 1);
$group_for_test->get_by_id(intval($participant->group_id));
if ($group_for_test->exists()) {
if (intval($group_for_test->participant_count) > intval($group_for_test->group_capacity)) {
$is_ok = FALSE;
}
}
}
}
if ($is_ok && $this->db->trans_status()) {
$this->db->trans_commit();
$this->_action_success();
$this->output->set_internal_value('student_id', $participant->student_id);
$this->output->set_internal_value('course_id', $participant->course_id);
} else {
$this->db->trans_rollback();
}
$participant->include_related('group', 'name');
$participant->get_by_id($participant_id);
$this->parser->parse('backend/participants/group_column.tpl', array('participant' => $participant));
}