function edit_user()
 {
     $user_model = new user_model();
     $user_service = new user_service();
     $user_model->set_user_fname($this->input->post('user_fname', TRUE));
     $user_model->set_user_lname($this->input->post('user_lname', TRUE));
     $user_model->set_user_email($this->input->post('user_email', TRUE));
     $user_model->set_user_job($this->input->post('user_job', TRUE));
     $user_model->set_user_bday($this->input->post('user_bday', TRUE));
     $user_model->set_user_contact($this->input->post('user_contact', TRUE));
     $user_model->set_user_id($this->input->post('user_id', TRUE));
     echo $user_service->update_user_profile($user_model);
 }