How to build in 'maintenance mode' in Codeigniter?

Question

I\'m using latest codeigniter and I need to create a flag (ideally in the config) when turned to \'true\', all pages display a \'maintenance mode\' message instead of execut

Answer 1

Here is what I've come up with for creating a maintenance mode.

1. Enable Hooks in the config.php file
2. Create an error_maintenance.php page under errors folder
3. Create a Hook called maintenance
4. In the hooks config setup your hooks call to run on post_controller

application/errors/error_maintenance.php

  
    
    
  
  
    
We apologize but our site is currently undergoing maintenance at this time.
    
Please check back later.
  

application/hooks/maintenance.php

CI =& get_instance();
      $this->CI->load->config("config_maintenance");    
      if(config_item("maintenance"))
      {
          $_error =& load_class('Exceptions', 'core');
          echo $_error->show_error("", "", 'error_maintenance', 200);
          exit;
      }
   }
}

application/config/hooks.php

$hook['post_controller'][] = array(
   'class' => 'maintenance',
   'function' => 'maintenance',
   'filename' => 'maintenance.php',
   'filepath' => 'hooks',
   'params' => array()
);