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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::$APP->config->item('rewrite_short_tags') == TRUE) { echo eval('?>' . preg_replace("/;*\s*\?>/", "; ?>", str_replace('<?=', '<?php echo ', file_get_contents($_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';