public function select_project($task_set_id, $task_id, $student_id)
{
$output = new stdClass();
$output->message = '';
$output->status = FALSE;
$this->_transaction_isolation();
$this->db->trans_begin();
$task_set = new Task_set();
$task_set->where('content_type', 'project');
$task_set->get_by_id((int) $task_set_id);
$task = new Task();
$task->get_by_id((int) $task_id);
$student = new Student();
$student->get_by_id((int) $student_id);
$course = new Course();
$course->where_related_task_set($task_set);
$course->get();
$participant = new Participant();
$participant->where_related_course($course);
$participant->where_related($student);
$participant->where('allowed', 1);
$participant->get();
$project_selection = new Project_selection();
$project_selection->where_related_student($student);
$project_selection->where_related_task_set($task_set);
$project_selection->get();
if ($task_set->exists() && $task->exists() && $task_set->is_related_to($task) && $student->exists() && $course->exists() && $participant->exists()) {
if ($task_set->get_student_files_count($student->id) == 0) {
$all_project_selections = new Project_selection();
$all_project_selections->where_related_task_set($task_set);
$all_project_selections->where_related_task($task);
$currently_selected = $all_project_selections->count();
$jf_task = $task_set->task->include_join_fields()->get_by_id($task_id);
$maximum_selections = (int) $jf_task->join_max_projects_selections;
if ($project_selection->exists()) {
if (!$project_selection->is_related_to($task)) {
if ($currently_selected < $maximum_selections) {
$project_selection->save($task);
$output->status = TRUE;
$output->message = $this->lang->line('admin_task_sets_project_selection_success');
} else {
$output->message = $this->lang->line('admin_task_sets_project_selection_no_room');
}
} else {
$output->message = $this->lang->line('admin_task_sets_project_selection_already_selected');
}
} else {
if ($currently_selected < $maximum_selections) {
$project_selection->save(array('student' => $student, 'task_set' => $task_set, 'task' => $task));
$output->status = TRUE;
$output->message = $this->lang->line('admin_task_sets_project_selection_success');
} else {
$output->message = $this->lang->line('admin_task_sets_project_selection_no_room');
}
}
} else {
$output->message = $this->lang->line('admin_task_sets_project_selection_already_submited_solutions');
}
} else {
$output->message = $this->lang->line('admin_task_sets_project_selection_cant_find_data');
}
if ($output->status) {
$this->db->trans_commit();
$this->_action_success();
} else {
$this->db->trans_rollback();
}
$this->output->set_content_type('application/json');
$this->output->set_output(json_encode($output));
}
