system/libraries/Controller.php

   1 <?php defined('SYSPATH') OR die('No direct access allowed.');
   2 /**
   3  * Kohana Controller class. The controller class must be extended to work
   4  * properly, so this class is defined as abstract.
   5  *
   6  * $Id: Controller.php 3917 2009-01-21 03:06:22Z zombor $
   7  *
   8  * @package    Core
   9  * @author     Kohana Team
  10  * @copyright  (c) 2007-2008 Kohana Team
  11  * @license    http://kohanaphp.com/license.html
  12  */
  13 abstract class Controller {
  14
  15         // Allow all controllers to run in production by default
  16         const ALLOW_PRODUCTION = TRUE;
  17
  18         /**
  19          * Loads URI, and Input into this controller.
  20          *
  21          * @return  void
  22          */
  23         public function __construct()
  24         {
  25                 if (Kohana::$instance == NULL)
  26                 {
  27                         // Set the instance to the first controller loaded
  28                         Kohana::$instance = $this;
  29                 }
  30
  31                 // URI should always be available
  32                 $this->uri = URI::instance();
  33
  34                 // Input should always be available
  35                 $this->input = Input::instance();
  36         }
  37
  38         /**
  39          * Handles methods that do not exist.
  40          *
  41          * @param   string  method name
  42          * @param   array   arguments
  43          * @return  void
  44          */
  45         public function __call($method, $args)
  46         {
  47                 // Default to showing a 404 page
  48                 Event::run('system.404');
  49         }
  50
  51         /**
  52          * Includes a View within the controller scope.
  53          *
  54          * @param   string  view filename
  55          * @param   array   array of view variables
  56          * @return  string
  57          */
  58         public function _kohana_load_view($kohana_view_filename, $kohana_input_data)
  59         {
  60                 if ($kohana_view_filename == '')
  61                         return;
  62
  63                 // Buffering on
  64                 ob_start();
  65
  66                 // Import the view variables to local namespace
  67                 extract($kohana_input_data, EXTR_SKIP);
  68
  69                 try
  70                 {
  71                         // Views are straight HTML pages with embedded PHP, so importing them
  72                         // this way insures that $this can be accessed as if the user was in
  73                         // the controller, which gives the easiest access to libraries in views
  74                         include $kohana_view_filename;
  75                 }
  76                 catch (Exception $e)
  77                 {
  78                         // Display the exception using its internal __toString method
  79                         echo $e;
  80                 }
  81
  82                 // Fetch the output and close the buffer
  83                 return ob_get_clean();
  84         }
  85
  86 } // End Controller Class