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<?php (defined('BASEPATH')) OR exit('No direct script access allowed');
/**
* Modular Extensions - HMVC
*
* Adapted from the CodeIgniter Core Classes
* @link http://codeigniter.com
*
* Description:
* This library extends the CodeIgniter CI_Loader class
* and adds features allowing use of modules and the HMVC design pattern.
*
* Install this file as application/third_party/MX/Loader.php
*
* @copyright Copyright (c) 2015 Wiredesignz
* @version 5.5
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
**/
class MX_Loader extends CI_Loader
{
protected $_module;
public $_ci_plugins = array();
public $_ci_cached_vars = array();
/** Initialize the loader variables **/
public function initialize($controller = NULL)
{
/* set the module name */
$this->_module = CI::$APP->router->fetch_module();
if ($controller instanceof MX_Controller)
{
/* reference to the module controller */
$this->controller = $controller;
/* references to ci loader variables */
foreach (get_class_vars('CI_Loader') as $var => $val)
{
if ($var != '_ci_ob_level')
{
$this->$var =& CI::$APP->load->$var;
}
}
}
else
{
parent::initialize();
/* autoload module items */
$this->_autoloader(array());
}
/* add this module path to the loader variables */
$this->_add_module_paths($this->_module);
}
/** Add a module path loader variables **/
public function _add_module_paths($module = '')
{
if (empty($module)) return;
foreach (Modules::$locations as $location => $offset)
{
/* only add a module path if it exists */
if (is_dir($module_path = $location.$module.'/') && ! in_array($module_path, $this->_ci_model_paths))
{
array_unshift($this->_ci_model_paths, $module_path);
}
}
}
/** Load a module config file **/
public function config($file, $use_sections = FALSE, $fail_gracefully = FALSE)
{
return CI::$APP->config->load($file, $use_sections, $fail_gracefully, $this->_module);
}
/** Load the database drivers **/
public function database($params = '', $return = FALSE, $query_builder = NULL)
{
if ($return === FALSE && $query_builder === NULL &&
isset(CI::$APP->db) && is_object(CI::$APP->db) && ! empty(CI::$APP->db->conn_id))
{
return FALSE;
}
require_once BASEPATH.'database/DB'.EXT;
if ($return === TRUE) return DB($params, $query_builder);
CI::$APP->db = DB($params, $query_builder);
return $this;
}
/** Load a module helper **/
public function helper($helper = array())
{
if (is_array($helper)) return $this->helpers($helper);
if (isset($this->_ci_helpers[$helper])) return;
list($path, $_helper) = Modules::find($helper.'_helper', $this->_module, 'helpers/');
if ($path === FALSE) return parent::helper($helper);
Modules::load_file($_helper, $path);
$this->_ci_helpers[$_helper] = TRUE;
return $this;
}
/** Load an array of helpers **/
public function helpers($helpers = array())
{
foreach ($helpers as $_helper) $this->helper($_helper);
return $this;
}
/** Load a module language file **/
public function language($langfile, $idiom = '', $return = FALSE, $add_suffix = TRUE, $alt_path = '')
{
CI::$APP->lang->load($langfile, $idiom, $return, $add_suffix, $alt_path, $this->_module);
return $this;
}
public function languages($languages)
{
foreach($languages as $_language) $this->language($_language);
return $this;
}
/** Load a module library **/
public function library($library, $params = NULL, $object_name = NULL)
{
if (is_array($library)) return $this->libraries($library);
$class = strtolower(basename($library));
if (isset($this->_ci_classes[$class]) && $_alias = $this->_ci_classes[$class])
return $this;
($_alias = strtolower($object_name)) OR $_alias = $class;
list($path, $_library) = Modules::find($library, $this->_module, 'libraries/');
/* load library config file as params */
if ($params == NULL)
{
list($path2, $file) = Modules::find($_alias, $this->_module, 'config/');
($path2) && $params = Modules::load_file($file, $path2, 'config');
}
if ($path === FALSE)
{
$this->_ci_load_library($library, $params, $object_name);
}
else
{
Modules::load_file($_library, $path);
$library = ucfirst($_library);
CI::$APP->$_alias = new $library($params);
$this->_ci_classes[$class] = $_alias;
}
return $this;
}
/** Load an array of libraries **/
public function libraries($libraries)
{
foreach ($libraries as $library => $alias)
{
(is_int($library)) ? $this->library($alias) : $this->library($library, NULL, $alias);
}
return $this;
}
/** Load a module model **/
public function model($model, $object_name = NULL, $connect = FALSE)
{
if (is_array($model)) return $this->models($model);
($_alias = $object_name) OR $_alias = basename($model);
if (in_array($_alias, $this->_ci_models, TRUE))
return $this;
/* check module */
list($path, $_model) = Modules::find(strtolower($model), $this->_module, 'models/');
if ($path == FALSE)
{
/* check application & packages */
parent::model($model, $object_name, $connect);
}
else
{
class_exists('CI_Model', FALSE) OR load_class('Model', 'core');
if ($connect !== FALSE && ! class_exists('CI_DB', FALSE))
{
if ($connect === TRUE) $connect = '';
$this->database($connect, FALSE, TRUE);
}
Modules::load_file($_model, $path);
$model = ucfirst($_model);
CI::$APP->$_alias = new $model();
$this->_ci_models[] = $_alias;
}
return $this;
}
/** Load an array of models **/
public function models($models)
{
foreach ($models as $model => $alias)
{
(is_int($model)) ? $this->model($alias) : $this->model($model, $alias);
}
return $this;
}
/** Load a module controller **/
public function module($module, $params = NULL)
{
if (is_array($module)) return $this->modules($module);
$_alias = strtolower(basename($module));
CI::$APP->$_alias = Modules::load(array($module => $params));
return $this;
}
/** Load an array of controllers **/
public function modules($modules)
{
foreach ($modules as $_module) $this->module($_module);
return $this;
}
/** Load a module plugin **/
public function plugin($plugin)
{
if (is_array($plugin)) return $this->plugins($plugin);
if (isset($this->_ci_plugins[$plugin]))
return $this;
list($path, $_plugin) = Modules::find($plugin.'_pi', $this->_module, 'plugins/');
if ($path === FALSE && ! is_file($_plugin = APPPATH.'plugins/'.$_plugin.EXT))
{
show_error("Unable to locate the plugin file: {$_plugin}");
}
Modules::load_file($_plugin, $path);
$this->_ci_plugins[$plugin] = TRUE;
return $this;
}
/** Load an array of plugins **/
public function plugins($plugins)
{
foreach ($plugins as $_plugin) $this->plugin($_plugin);
return $this;
}
/** Load a module view **/
public function view($view, $vars = array(), $return = FALSE)
{
list($path, $_view) = Modules::find($view, $this->_module, 'views/');
if ($path != FALSE)
{
$this->_ci_view_paths = array($path => TRUE) + $this->_ci_view_paths;
$view = $_view;
}
if (method_exists($this, '_ci_object_to_array'))
{
return $this->_ci_load(array('_ci_view' => $view, '_ci_vars' => $this->_ci_object_to_array($vars), '_ci_return' => $return));
} else {
return $this->_ci_load(array('_ci_view' => $view, '_ci_vars' => $this->_ci_prepare_view_vars($vars), '_ci_return' => $return));
}
}
protected function &_ci_get_component($component)
{
return CI::$APP->$component;
}
public function __get($class)
{
return (isset($this->controller)) ? $this->controller->$class : CI::$APP->$class;
}
public function _ci_load($_ci_data)
{
extract($_ci_data);
if (isset($_ci_view))
{
$_ci_path = '';
/* add file extension if not provided */
$_ci_file = (pathinfo($_ci_view, PATHINFO_EXTENSION)) ? $_ci_view : $_ci_view.EXT;
foreach ($this->_ci_view_paths as $path => $cascade)
{
if (file_exists($view = $path.$_ci_file))
{
$_ci_path = $view;
break;
}
if ( ! $cascade) break;
}
}
elseif (isset($_ci_path))
{
$_ci_file = basename($_ci_path);
if( ! file_exists($_ci_path)) $_ci_path = '';
}
if (empty($_ci_path))
show_error('Unable to load the requested file: '.$_ci_file);
if (isset($_ci_vars))
$this->_ci_cached_vars = array_merge($this->_ci_cached_vars, (array) $_ci_vars);
extract($this->_ci_cached_vars);
ob_start();
if ((bool) @ini_get('short_open_tag') === FALSE && CI::$APP->config->item('rewrite_short_tags') == TRUE)
{
echo eval('?>'.preg_replace("/;*\s*\?>/", "; ?>", str_replace('<?php echo ', '<?php echo ', file_get_contents($_ci_path))));
}
else
{
include($_ci_path);
}
log_message('debug', 'File loaded: '.$_ci_path);
if ($_ci_return == TRUE) return ob_get_clean();
if (ob_get_level() > $this->_ci_ob_level + 1)
{
ob_end_flush();
}
else
{
CI::$APP->output->append_output(ob_get_clean());
}
}
/** Autoload module items **/
public function _autoloader($autoload)
{
$path = FALSE;
if ($this->_module)
{
list($path, $file) = Modules::find('constants', $this->_module, 'config/');
/* module constants file */
if ($path != FALSE)
{
include_once $path.$file.EXT;
}
list($path, $file) = Modules::find('autoload', $this->_module, 'config/');
/* module autoload file */
if ($path != FALSE)
{
$autoload = array_merge(Modules::load_file($file, $path, 'autoload'), $autoload);
}
}
/* nothing to do */
if (count($autoload) == 0) return;
/* autoload package paths */
if (isset($autoload['packages']))
{
foreach ($autoload['packages'] as $package_path)
{
$this->add_package_path($package_path);
}
}
/* autoload config */
if (isset($autoload['config']))
{
foreach ($autoload['config'] as $config)
{
$this->config($config);
}
}
/* autoload helpers, plugins, languages */
foreach (array('helper', 'plugin', 'language') as $type)
{
if (isset($autoload[$type]))
{
foreach ($autoload[$type] as $item)
{
$this->$type($item);
}
}
}
// Autoload drivers
if (isset($autoload['drivers']))
{
foreach ($autoload['drivers'] as $item => $alias)
{
(is_int($item)) ? $this->driver($alias) : $this->driver($item, $alias);
}
}
/* autoload database & libraries */
if (isset($autoload['libraries']))
{
if (in_array('database', $autoload['libraries']))
{
/* autoload database */
if ( ! $db = CI::$APP->config->item('database'))
{
$this->database();
$autoload['libraries'] = array_diff($autoload['libraries'], array('database'));
}
}
/* autoload libraries */
foreach ($autoload['libraries'] as $library => $alias)
{
(is_int($library)) ? $this->library($alias) : $this->library($library, NULL, $alias);
}
}
/* autoload models */
if (isset($autoload['model']))
{
foreach ($autoload['model'] as $model => $alias)
{
(is_int($model)) ? $this->model($alias) : $this->model($model, $alias);
}
}
/* autoload module controllers */
if (isset($autoload['modules']))
{
foreach ($autoload['modules'] as $controller)
{
($controller != $this->_module) && $this->module($controller);
}
}
}
}
/** load the CI class for Modular Separation **/
(class_exists('CI', FALSE)) OR require dirname(__FILE__).'/Ci.php';