Question

I am using Codeigniter to build my project.

Here i have some doubts or need some clarification.

Can i use Constructors to do somethings that which affect all other functions in codeigniter/php ??

Please take a look here :

<?php
class New extends CI_Controller
{
 function __construct()

{

//Constructor codes...

}
 function Create_page()  //The user need to be Logged in to perform this
{
 //Checking whether the user logged in or not if yes allowed else denied. 
}
 function Edit_page()      //The user need to be Logged in to perform this
{
 //Checking whether the user logged in or not if yes allowed else denied.
}
function Delete_page()  //The user need to be Logged in to perform this
{
 //Checking whether the user logged in or not if yes allowed else denied.
}
function about_us()   //This is a public action no need to Log in 
{
   // this is a pulic action ,no need to check the login status
}
}
?> 

As you can see that i need to check the Logged in status on each Private functions ,

Is there any way that i can do this on constructor ? so that constructor will check logged in or not ….but it will only need to affect some Functions…

Answer 1

Call a function in constructor, which checks following steps:

• define which methods needs login, which do not.
• detect the current method call.
• if required, then do login, else not.

---

<?php
class New extends CI_Controller
{

  var $publicMethods  = array("aboutUs"); 

 function __construct()

{

//Constructor codes...
  $this->_validateLogin();

}

 function _validateLogin()
 {
    $router = &load_class('Router');
    $currentMethod = $router->fetch_method();
    if(in_array($currentMethod,$this->publicMethods) == false){
       // call some login functionality
    }
  }

 function Create_page()  //The user need to be Logged in to perform this
{
 //Checking whether the user logged in or not if yes allowed else denied. 
}
 function Edit_page()      //The user need to be Logged in to perform this
{
 //Checking whether the user logged in or not if yes allowed else denied.
}
function Delete_page()  //The user need to be Logged in to perform this
{
 //Checking whether the user logged in or not if yes allowed else denied.
}
function about_us()   //This is a public action no need to Log in 
{
   // this is a pulic action ,no need to check the login status
}
}
?>