CodeIgniter Modifications

We are following the standard project folder, you might see few available directories: docs, license, public, src and tests.

Few modifications, enhancement and rewriting have been done to suit the need of the application. These are few to none changes but we have to mention them due to license agreement and so that you know what to do in case of a new CodeIgniter release.

• index.php
• CodeIgniter.php
• Common.php

index.php

On this file, we have first added the path to src folder which starts from line #92 to line #102.

/*
 *---------------------------------------------------------------
 * Path to skeleton folder.
 *---------------------------------------------------------------
 *
 * This folder contains all files that override or extend
 * CodeIgniter core classes and files.
 *
 */
    $skeleton_src = '_PATH_TO_SRC_DIR';
    $skeleton_path = "{$skeleton_src}/skeleton";

At line #251 and line #254 we have defined two useful constants:

// Define the path to skeleton folder.
define('KBPATH', $skeleton_path.DIRECTORY_SEPARATOR);

// Define a constant representing DIRECTORY_SEPARATOR.
define('DS', DIRECTORY_SEPARATOR);

CodeIgniter.php

From line #60 to line #66, we simply added the Skeleton version constant (since v1.3.3).

/**
 * Skeleton Version
 *
 * @var string
 *
 */
    const KB_VERSION = '1.3.3';

We have include our custom constants.php file in which you will find some useful constants. At like #75:

// Some useful constants are added.
require_once(KBPATH.'config/constants.php');

From line #218 to #223 we have loaded our custom plugins class CI_Plugins that allows as to use a more advanced hooks system:

/*
 * ------------------------------------------------------
 *  Instantiate the plugins class
 * ------------------------------------------------------
 */
    $PLG =& load_class('Plugins', 'libraries');

And because we have included this class, you will also find on this file:

$PLG->do_action('pre_controller');              // Line #542
$PLG->do_action('post_controller_constructor'); // Line #560
$PLG->do_action('post_controller');             // Line #578
$PLG->do_action('post_system');                 // Line #596

At lines #429 to #450 we have a little modification so controllers are loaded from the default folder APPPATH/controllers but also our custom folder KBPATH/controllers. Here is how those line were and below how they become:

// Line #405 (original CodeIgiter.php):
if (empty($class) OR ! file_exists(APPPATH.'controllers/'.$RTR->directory.$class.'.php'))

// Line #405 (after) ... You will find it at #433:
if (empty($class))


// Line #411 (original CodeIgniter.php)
require_once(APPPATH.'controllers/'.$RTR->directory.$class.'.php');

// After, you will find it at line #433
if (file_exists(APPPATH.'controllers/'.$RTR->directory.$class.'.php'))
{
    require_once(APPPATH.'controllers/'.$RTR->directory.$class.'.php');
}
elseif (file_exists(KBPATH.'controllers/'.$RTR->directory.$class.'.php'))
{
    require_once(KBPATH.'controllers/'.$RTR->directory.$class.'.php');
}
else
{
    $e404 = TRUE;
}

Common.php

The load_class function has been altered a little bit. In fact we have added our custom path to class loading and we are loading our custom classes right after core classes are loaded in order to enhance or override behavior. At line #155:

// Before
foreach (array(APPPATH, BASEPATH) as $path)

// After
foreach (array(APPPATH, KBPATH, BASEPATH) as $path)

From line #170 to line #182, here is where we load our custom classes to enhance or override behavior:

/**
 * Load any existing class with our custom subclass prefix 'KB_',
 * we do this to allow the user to extend core classes with the
 * prefix set in application/config/config.php file.
 */
if (file_exists(KBPATH.$directory.'/KB_'.$class.'.php'))
{
    $name = 'KB_'.$class;
    if (class_exists($name, FALSE) === FALSE)
    {
        require_once(KBPATH.$directory.'/KB_'.$class.'.php');
    }
}