PHP CodeIgniter - 为不同的控制器使用相同的功能 - 最小化重复

Question

I have the same variables on different controllers that are sent to my view like this:

Controller A

$data['priv_information'] = $this->m_user_group->get_priv_information();
$data['priv_customer'] = $this->m_user_group->get_priv_customer();
$data['priv_new_model'] = $this->m_user_group->get_priv_new_model();
$data['priv_price'] = $this->m_user_group->get_priv_price();
$data['priv_masspro'] = $this->m_user_group->get_priv_masspro();
$data['priv_product'] = $this->m_user_group->get_priv_product();
$data['priv_calendar'] = $this->m_user_group->get_priv_calendar();
$data['priv_maintenance'] = $this->m_user_group->get_priv_maintenance();
$this->load->view($this->template, $data);

Controller B

$data['priv_information'] = $this->m_user_group->get_priv_information();
$data['priv_customer'] = $this->m_user_group->get_priv_customer();
$data['priv_new_model'] = $this->m_user_group->get_priv_new_model();
$data['priv_price'] = $this->m_user_group->get_priv_price();
$data['priv_masspro'] = $this->m_user_group->get_priv_masspro();
$data['priv_product'] = $this->m_user_group->get_priv_product();
$data['priv_calendar'] = $this->m_user_group->get_priv_calendar();
$data['priv_maintenance'] = $this->m_user_group->get_priv_maintenance();
$this->load->view($this->template, $data);

Doing it this way, I always have to copy and paste the same code to other controllers. I have no problem doing this. However, my big problem is when I need to modify one variable. I have to re-copy - and paste the same code in others controller multiple times. How do I solve this problem to minimize repetition?.

thanks in advance :)

Answer 1

You can write a lib :

In application/libraries create Tools.php (or whatever you want)

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Tools
{
  protected $ci;

    public function __construct()
    {
        $this->ci =& get_instance(); 
    }

    public function buildData()
    {
       $this->ci->load->model('m_user');
       $data['priv_information'] = $this->ci->m_user_group->get_priv_information(); 
       $data['priv_customer'] = $this->ci->m_user_group->get_priv_customer();   
       $data['priv_new_model'] = $this->ci->m_user_group->get_priv_new_model();  
       $data['priv_price'] = $this->ci->m_user_group->get_priv_price();    
       $data['priv_masspro'] = $this->ci->m_user_group->get_priv_masspro();    
       $data['priv_product'] = $this->ci->m_user_group->get_priv_product();
       $data['priv_calendar'] = $this->ci->m_user_group->get_priv_calendar();
       $data['priv_maintenance'] = $this->ci->m_user_group->get_priv_maintenance();

       return $data;
    }

}

And then in your controllers :

 $this->load->library("tools");
 $data = $this->tools->buildData();
 $this->load->view($this->template, $data);