public function select_project($task_set_id_url = NULL, $task_id_url = NULL)
{
$task_set_id = url_get_id($task_set_id_url);
$task_id = url_get_id($task_id_url);
$this->_transaction_isolation();
$this->db->trans_begin();
$student = new Student();
$student->get_by_id($this->usermanager->get_student_id());
$course = new Course();
$course->where_related('active_for_student', 'id', $student->id);
$course->where_related('participant', 'student_id', $student->id);
$course->where_related('participant', 'allowed', 1);
$course->include_related('period', 'name');
$course->get();
if ($course->exists()) {
$task_set = new Task_set();
$task_set->where_related('course', $course);
$task_set->where('published', 1);
$task_set->get_by_id($task_set_id);
if ($task_set->exists()) {
if ($task_set->get_student_files_count($student->id) == 0 && date('Y-m-d H:i:s') <= $task_set->project_selection_deadline) {
$task = $task_set->task->include_join_fields()->get_by_id($task_id);
if ($task->exists()) {
$project_selection = new Project_selection();
$project_selection->where_related('student', $student);
$project_selection->where_related('task_set', $task_set);
$project_selection->get();
$can_continue = TRUE;
if ($project_selection->exists()) {
if ($project_selection->task_id != $task->id) {
$project_selection->task_id = $task->id;
} else {
$can_continue = FALSE;
}
} else {
$project_selection->task_id = $task->id;
$project_selection->task_set_id = $task_set->id;
$project_selection->student_id = $student->id;
}
if ($can_continue) {
$project_selection_count = new Project_selection();
$project_selection_count->where_related('task_set', $task_set);
$project_selection_count->where_related('task', $task);
$count = $project_selection_count->count();
if ($task->join_max_projects_selections > $count) {
if ($project_selection->save()) {
$this->db->trans_commit();
$this->_action_success();
$this->output->set_internal_value('task_set_id', $task_set->id);
$this->messages->add_message($this->lang->line('projects_selection_success'), Messages::MESSAGE_TYPE_SUCCESS);
redirect(create_internal_url('projects/task/' . $task_set_id_url . '/' . $task_id_url));
} else {
$this->db->trans_rollback();
$this->messages->add_message($this->lang->line('projects_selection_error_save_failed'), Messages::MESSAGE_TYPE_ERROR);
redirect(create_internal_url('projects/task/' . $task_set_id_url . '/' . $task_id_url));
}
} else {
$this->db->trans_rollback();
$this->messages->add_message($this->lang->line('projects_selection_error_no_free_space'), Messages::MESSAGE_TYPE_ERROR);
redirect(create_internal_url('projects/task/' . $task_set_id_url . '/' . $task_id_url));
}
} else {
$this->db->trans_rollback();
$this->messages->add_message($this->lang->line('projects_selection_error_already_selected'), Messages::MESSAGE_TYPE_ERROR);
redirect(create_internal_url('projects/task/' . $task_set_id_url . '/' . $task_id_url));
}
} else {
$this->db->trans_rollback();
$this->messages->add_message($this->lang->line('projects_selection_error_task_not_found'), Messages::MESSAGE_TYPE_ERROR);
redirect(create_internal_url('projects/selection/' . $task_set_id_url));
}
} else {
$this->db->trans_rollback();
$this->messages->add_message($this->lang->line('projects_selection_error_selection_disabled'), Messages::MESSAGE_TYPE_ERROR);
redirect(create_internal_url('projects/selection/' . $task_set_id_url));
}
} else {
$this->db->trans_rollback();
$this->messages->add_message($this->lang->line('projects_selection_error_task_set_not_found'), Messages::MESSAGE_TYPE_ERROR);
redirect(create_internal_url('projects'));
}
} else {
$this->db->trans_rollback();
$this->messages->add_message($this->lang->line('projects_selection_error_no_active_course'), Messages::MESSAGE_TYPE_ERROR);
redirect(create_internal_url('projects'));
}
}
