I'm using URIs to direct a function in a library:

    $id = $this->CI->session->userdata('id');
    $URI = $this->CI->uri->uri_string();
    $new = "new";
    if(strpos($URI, $new) === FALSE){
        $method = "update";
    }
    elseif(strpos($URI, $new) !== FALSE){
        $method = "create";
    }

So I have two if statements directing what information to

    if ($method === 'update') {
        // Modify form, first load
        $this->CI->db->from('be_survey');
        $this->CI->db->where('user_id' , $id);
        $survey =   $this->CI->db->get();
        $user = array_merge($user->row_array(),$survey->row_array());
        $this->CI->validation->set_default_value($user);    
        // Display page
        $data['user'] = $user;
    }
    $this->CI->validation->set_rules($rules);

        if ( $this->CI->validation->run() === FALSE )
        {
            // Output any errors
            $this->CI->validation->output_errors();
        }
        else
        {
            // Submit form
            $this->_submit($method);
        }

Submit function:

function _submit($method)
{
    //Submit and Update for current User
    $id = $this->CI->session->userdata('id');
    $this->CI->db->select('users.id, users.username, users.email, profiles.firstname, profiles.manager_id');
    $this->CI->db->from('be_users' . " users");
    $this->CI->db->join('be_user_profiles' . " profiles",'users.id=profiles.user_id');
    $this->CI->db->having('id', $id);
    $email_data['user'] = $this->CI->db->get();
    $email_data['user'] = $email_data['user']->row();
    $manager_id = $email_data['user']->manager_id;
    $this->CI->db->select('firstname','email')->from('be_user_profiles')->where('user_id', $manager_id);

    $email_data['manager'] = $this->CI->db->get();
    $email_data['manager'] = $email_data['manager']->row();


    // Fetch what they entered in the form

    for($i=1;$i<18;$i++){
      $survey["a_".$i]= $this->CI->input->post('a_'.$i);
    }
    for($i=1;$i<15;$i++){
      $survey["b_".$i]= $this->CI->input->post('b_'.$i);
    }
    for($i=1;$i<12;$i++){
      $survey["c_".$i]= $this->CI->input->post('c_'.$i);
    }
    $profile['firstname'] = $this->CI->input->post('firstname');
    $profile['lastname'] = $this->CI->input->post('lastname');
    $profile['test_date'] = date ("Y-m-d H:i:s");
    $profile['company_name'] = $this->CI->input->post('company_name');
    $profile['company_address'] = $this->CI->input->post('company_address');
    $profile['company_city'] = $this->CI->input->post('company_city');
    $profile['company_phone'] = $this->CI->input->post('company_phone');
    $profile['company_state'] = $this->CI->input->post('company_state');
    $profile['company_zip'] = $this->CI->input->post('company_zip');
    $profile['job_title'] = $this->CI->input->post('job_title');
    $profile['job_type'] = $this->CI->input->post('job_type');
    $profile['job_time'] = $this->CI->input->post('job_time');
    $profile['department'] = $this->CI->input->post('department');
    $profile['vision'] = $this->CI->input->post('vision');
    $profile['height'] = $this->CI->input->post('height');
    $profile['weight'] = $this->CI->input->post('weight');
    $profile['hand_dominance'] = $this->CI->input->post('hand_dominance');
    $profile['areas_of_fatigue'] = $this->CI->input->post('areas_of_fatigue');
    $profile['job_description'] = $this->CI->input->post('job_description');
    $profile['injury_review'] = $this->CI->input->post('injury_review');
    $profile['job_positive'] = $this->CI->input->post('job_positive');
    $profile['risk_factors'] = $this->CI->input->post('risk_factors');
    $profile['job_improvement_short'] = $this->CI->input->post('job_improvement_short');
    $profile['job_improvement_long'] = $this->CI->input->post('job_improvement_long');      

    if ($method == "update") {
        //Begin db transmission
        $this->CI->db->trans_begin();

        $this->CI->home_model->update('Survey',$survey, array('user_id' => $id));
        $this->CI->db->update('be_user_profiles',$profile, array('user_id' => $id));        
        if ($this->CI->db->trans_status() === FALSE)
        {
            flashMsg('error','There was a problem entering your test! Please contact an administrator.');
            redirect('survey','location');
        }
        else
        {
            //Get credits of user and subtract 1        
            $this->CI->db->set('credits', 'credits -1', FALSE);
            $this->CI->db->update('be_user_profiles',$profile, array('user_id' => $manager_id));

            //Mark the form completed.
            $this->CI->db->set('test_complete', '1');
            $this->CI->db->where('user_id', $id)->update('be_user_profiles');
            // Stuff worked...
            $this->CI->db->trans_commit();



            //Get Manager Information
            $this->CI->db->select('users.id, users.username, users.email, profiles.firstname');
            $this->CI->db->from('be_users' . " users");
            $this->CI->db->join('be_user_profiles' . " profiles",'users.id=profiles.user_id');
            $this->CI->db->having('id', $email_data['user']->manager_id);
            $email_data['manager'] = $this->CI->db->get();
            $email_data['manager'] = $email_data['manager']->row();

            //Email User
            $this->CI->load->library('User_email');
            $data_user = array(
                    'firstname'=>$email_data['user']->firstname,
                    'email'=> $email_data['user']->email,
                    'user_completed'=>$email_data['user']->firstname,
                    'site_name'=>$this->CI->preference->item('site_name'),
                    'site_url'=>base_url()
            );

            //Email Manager     
            $data_manager = array(
                    'firstname'=>$email_data['manager']->firstname,
                    'email'=> $email_data['manager']->email,
                    'user_completed'=>$email_data['user']->firstname,
                    'site_name'=>$this->CI->preference->item('site_name'),
                    'site_url'=>base_url()
            );
            $this->CI->user_email->send($email_data['manager']->email,'Completed the Assessment Tool','public/email_manager_complete',$data_manager);
            $this->CI->user_email->send($email_data['user']->email,'Completed the Assessment Tool','public/email_user_complete',$data_user);

            flashMsg('success','You finished the assessment successfully!');
            redirect('home','location');
        }
    }
    //Create New User
    elseif ($method == "create") {
            // Build
            $profile['user_id'] = $id;
            $profile['manager_id'] = $manager_id;
            $profile['test_complete'] = '1';
            $survey['user_id'] = $id;
            $this->CI->db->trans_begin();

            // Add user_profile details to DB
            $this->CI->db->insert('be_user_profiles',$profile);
            $this->CI->db->insert('be_survey',$survey);

            if ($this->CI->db->trans_status() === FALSE)
            {
                // Registration failed
                $this->CI->db->trans_rollback();

                flashMsg('error',$this->CI->lang->line('userlib_registration_failed'));
                redirect('auth/register','location');
            }
            else
            {
                // User registered
                $this->CI->db->trans_commit();

                flashMsg('success',$this->CI->lang->line('userlib_registration_success'));
                redirect($this->CI->config->item('userlib_action_register'),'location');
            }

    }
}

The submit function is similar, updating the db if $method == "update", and inserting if the method == "create".

The problem is, when the form is submitted, it doesn't take into account the url b/c the form submits to the function "survey", which passes data to the lib function, so things are always updated, never created.

*How can I pass $method to the _submit() function correctly?!*