function lesson_insert($id_group, $is_numerator)
{
$m = new Lessons();
$m->is_holiday = $model->is_holiday;
$m->all_group = $model->all_group;
$m->id_discipline = $model->id_discipline;
$m->id_teacher = $model->id_teacher;
$m->id_classroom = $model->id_classroom;
$m->id_group = $id_group;
$m->id_faculty = $model->id_faculty;
$m->id_speciality = $model->id_speciality;
$m->course = $model->course;
$m->semester = $model->semester;
$m->id_okr = $model->id_okr;
$m->is_numerator = $is_numerator;
$m->day = $model->day;
$m->comment = $model->comment;
$m->lesson_number = $model->lesson_number;
$m->insert();
}
