-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');\r
-/**\r
- * CodeIgniter\r
- *\r
- * An open source application development framework for PHP 4.3.2 or newer\r
- *\r
- * @package CodeIgniter\r
- * @author ExpressionEngine Dev Team\r
- * @copyright Copyright (c) 2008, EllisLab, Inc.\r
- * @license http://codeigniter.com/user_guide/license.html\r
- * @link http://codeigniter.com\r
- * @since Version 1.0\r
- * @filesource\r
- */\r
-\r
-// ------------------------------------------------------------------------\r
-\r
-/**\r
- * Loader Class\r
- *\r
- * Loads views and files\r
- *\r
- * @package CodeIgniter\r
- * @subpackage Libraries\r
- * @author ExpressionEngine Dev Team\r
- * @category Loader\r
- * @link http://codeigniter.com/user_guide/libraries/loader.html\r
- */\r
-class CI_Loader {\r
-\r
- // All these are set automatically. Don't mess with them.\r
- var $_ci_ob_level;\r
- var $_ci_view_path = '';\r
- var $_ci_is_php5 = FALSE;\r
- var $_ci_is_instance = FALSE; // Whether we should use $this or $CI =& get_instance()\r
- var $_ci_cached_vars = array();\r
- var $_ci_classes = array();\r
- var $_ci_loaded_files = array();\r
- var $_ci_models = array();\r
- var $_ci_helpers = array();\r
- var $_ci_plugins = array();\r
- var $_ci_varmap = array('unit_test' => 'unit', 'user_agent' => 'agent');\r
- \r
-\r
- /**\r
- * Constructor\r
- *\r
- * Sets the path to the view files and gets the initial output buffering level\r
- *\r
- * @access public\r
- */\r
- function CI_Loader()\r
- { \r
- $this->_ci_is_php5 = (floor(phpversion()) >= 5) ? TRUE : FALSE;\r
- $this->_ci_view_path = APPPATH.'views/';\r
- $this->_ci_ob_level = ob_get_level();\r
- \r
- log_message('debug', "Loader Class Initialized");\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Class Loader\r
- *\r
- * This function lets users load and instantiate classes.\r
- * It is designed to be called from a user's app controllers.\r
- *\r
- * @access public\r
- * @param string the name of the class\r
- * @param mixed the optional parameters\r
- * @param string an optional object name\r
- * @return void\r
- */ \r
- function library($library = '', $params = NULL, $object_name = NULL)\r
- {\r
- if ($library == '')\r
- {\r
- return FALSE;\r
- }\r
-\r
- if ( ! is_null($params) AND ! is_array($params))\r
- {\r
- $params = NULL;\r
- }\r
-\r
- if (is_array($library))\r
- {\r
- foreach ($library as $class)\r
- {\r
- $this->_ci_load_class($class, $params, $object_name);\r
- }\r
- }\r
- else\r
- {\r
- $this->_ci_load_class($library, $params, $object_name);\r
- }\r
- \r
- $this->_ci_assign_to_models();\r
- }\r
-\r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Model Loader\r
- *\r
- * This function lets users load and instantiate models.\r
- *\r
- * @access public\r
- * @param string the name of the class\r
- * @param string name for the model\r
- * @param bool database connection\r
- * @return void\r
- */ \r
- function model($model, $name = '', $db_conn = FALSE)\r
- { \r
- if (is_array($model))\r
- {\r
- foreach($model as $babe)\r
- {\r
- $this->model($babe); \r
- }\r
- return;\r
- }\r
-\r
- if ($model == '')\r
- {\r
- return;\r
- }\r
- \r
- // Is the model in a sub-folder? If so, parse out the filename and path.\r
- if (strpos($model, '/') === FALSE)\r
- {\r
- $path = '';\r
- }\r
- else\r
- {\r
- $x = explode('/', $model);\r
- $model = end($x); \r
- unset($x[count($x)-1]);\r
- $path = implode('/', $x).'/';\r
- }\r
- \r
- if ($name == '')\r
- {\r
- $name = $model;\r
- }\r
- \r
- if (in_array($name, $this->_ci_models, TRUE))\r
- {\r
- return;\r
- }\r
- \r
- $CI =& get_instance();\r
- if (isset($CI->$name))\r
- {\r
- show_error('The model name you are loading is the name of a resource that is already being used: '.$name);\r
- }\r
- \r
- $model = strtolower($model);\r
- \r
- if ( ! file_exists(APPPATH.'models/'.$path.$model.EXT))\r
- {\r
- show_error('Unable to locate the model you have specified: '.$model);\r
- }\r
- \r
- if ($db_conn !== FALSE AND ! class_exists('CI_DB'))\r
- {\r
- if ($db_conn === TRUE)\r
- $db_conn = '';\r
- \r
- $CI->load->database($db_conn, FALSE, TRUE);\r
- }\r
- \r
- if ( ! class_exists('Model'))\r
- {\r
- load_class('Model', FALSE);\r
- }\r
-\r
- require_once(APPPATH.'models/'.$path.$model.EXT);\r
-\r
- $model = ucfirst($model);\r
- \r
- $CI->$name = new $model();\r
- $CI->$name->_assign_libraries();\r
- \r
- $this->_ci_models[] = $name; \r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Database Loader\r
- *\r
- * @access public\r
- * @param string the DB credentials\r
- * @param bool whether to return the DB object\r
- * @param bool whether to enable active record (this allows us to override the config setting)\r
- * @return object\r
- */ \r
- function database($params = '', $return = FALSE, $active_record = FALSE)\r
- {\r
- // Grab the super object\r
- $CI =& get_instance();\r
- \r
- // Do we even need to load the database class?\r
- if (class_exists('CI_DB') AND $return == FALSE AND $active_record == FALSE AND isset($CI->db) AND is_object($CI->db))\r
- {\r
- return FALSE;\r
- } \r
- \r
- require_once(BASEPATH.'database/DB'.EXT);\r
-\r
- if ($return === TRUE)\r
- {\r
- return DB($params, $active_record);\r
- }\r
- \r
- // Initialize the db variable. Needed to prevent \r
- // reference errors with some configurations\r
- $CI->db = '';\r
- \r
- // Load the DB class\r
- $CI->db =& DB($params, $active_record); \r
- \r
- // Assign the DB object to any existing models\r
- $this->_ci_assign_to_models();\r
- }\r
- \r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Load the Utilities Class\r
- *\r
- * @access public\r
- * @return string \r
- */ \r
- function dbutil()\r
- {\r
- if ( ! class_exists('CI_DB'))\r
- {\r
- $this->database();\r
- }\r
- \r
- $CI =& get_instance();\r
-\r
- // for backwards compatibility, load dbforge so we can extend dbutils off it\r
- // this use is deprecated and strongly discouraged\r
- $CI->load->dbforge();\r
- \r
- require_once(BASEPATH.'database/DB_utility'.EXT);\r
- require_once(BASEPATH.'database/drivers/'.$CI->db->dbdriver.'/'.$CI->db->dbdriver.'_utility'.EXT);\r
- $class = 'CI_DB_'.$CI->db->dbdriver.'_utility';\r
-\r
- $CI->dbutil =& new $class();\r
-\r
- $CI->load->_ci_assign_to_models();\r
- }\r
- \r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Load the Database Forge Class\r
- *\r
- * @access public\r
- * @return string \r
- */ \r
- function dbforge()\r
- {\r
- if ( ! class_exists('CI_DB'))\r
- {\r
- $this->database();\r
- }\r
- \r
- $CI =& get_instance();\r
- \r
- require_once(BASEPATH.'database/DB_forge'.EXT);\r
- require_once(BASEPATH.'database/drivers/'.$CI->db->dbdriver.'/'.$CI->db->dbdriver.'_forge'.EXT);\r
- $class = 'CI_DB_'.$CI->db->dbdriver.'_forge';\r
-\r
- $CI->dbforge = new $class();\r
- \r
- $CI->load->_ci_assign_to_models();\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Load View\r
- *\r
- * This function is used to load a "view" file. It has three parameters:\r
- *\r
- * 1. The name of the "view" file to be included.\r
- * 2. An associative array of data to be extracted for use in the view.\r
- * 3. TRUE/FALSE - whether to return the data or load it. In\r
- * some cases it's advantageous to be able to return data so that\r
- * a developer can process it in some way.\r
- *\r
- * @access public\r
- * @param string\r
- * @param array\r
- * @param bool\r
- * @return void\r
- */\r
- function view($view, $vars = array(), $return = FALSE)\r
- {\r
- return $this->_ci_load(array('_ci_view' => $view, '_ci_vars' => $this->_ci_object_to_array($vars), '_ci_return' => $return));\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Load File\r
- *\r
- * This is a generic file loader\r
- *\r
- * @access public\r
- * @param string\r
- * @param bool\r
- * @return string\r
- */\r
- function file($path, $return = FALSE)\r
- {\r
- return $this->_ci_load(array('_ci_path' => $path, '_ci_return' => $return));\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Set Variables\r
- *\r
- * Once variables are set they become available within\r
- * the controller class and its "view" files.\r
- *\r
- * @access public\r
- * @param array\r
- * @return void\r
- */\r
- function vars($vars = array(), $val = '')\r
- {\r
- if ($val != '' AND is_string($vars))\r
- {\r
- $vars = array($vars => $val);\r
- }\r
- \r
- $vars = $this->_ci_object_to_array($vars);\r
- \r
- if (is_array($vars) AND count($vars) > 0)\r
- {\r
- foreach ($vars as $key => $val)\r
- {\r
- $this->_ci_cached_vars[$key] = $val;\r
- }\r
- }\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Load Helper\r
- *\r
- * This function loads the specified helper file.\r
- *\r
- * @access public\r
- * @param mixed\r
- * @return void\r
- */\r
- function helper($helpers = array())\r
- {\r
- if ( ! is_array($helpers))\r
- {\r
- $helpers = array($helpers);\r
- }\r
- \r
- foreach ($helpers as $helper)\r
- { \r
- $helper = strtolower(str_replace(EXT, '', str_replace('_helper', '', $helper)).'_helper');\r
-\r
- if (isset($this->_ci_helpers[$helper]))\r
- {\r
- continue;\r
- }\r
- \r
- $ext_helper = APPPATH.'helpers/'.config_item('subclass_prefix').$helper.EXT;\r
-\r
- // Is this a helper extension request? \r
- if (file_exists($ext_helper))\r
- {\r
- $base_helper = BASEPATH.'helpers/'.$helper.EXT;\r
- \r
- if ( ! file_exists($base_helper))\r
- {\r
- show_error('Unable to load the requested file: helpers/'.$helper.EXT);\r
- }\r
- \r
- include_once($ext_helper);\r
- include_once($base_helper);\r
- }\r
- elseif (file_exists(APPPATH.'helpers/'.$helper.EXT))\r
- { \r
- include_once(APPPATH.'helpers/'.$helper.EXT);\r
- }\r
- else\r
- { \r
- if (file_exists(BASEPATH.'helpers/'.$helper.EXT))\r
- {\r
- include_once(BASEPATH.'helpers/'.$helper.EXT);\r
- }\r
- else\r
- {\r
- show_error('Unable to load the requested file: helpers/'.$helper.EXT);\r
- }\r
- }\r
-\r
- $this->_ci_helpers[$helper] = TRUE;\r
- log_message('debug', 'Helper loaded: '.$helper); \r
- } \r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Load Helpers\r
- *\r
- * This is simply an alias to the above function in case the\r
- * user has written the plural form of this function.\r
- *\r
- * @access public\r
- * @param array\r
- * @return void\r
- */\r
- function helpers($helpers = array())\r
- {\r
- $this->helper($helpers);\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Load Plugin\r
- *\r
- * This function loads the specified plugin.\r
- *\r
- * @access public\r
- * @param array\r
- * @return void\r
- */\r
- function plugin($plugins = array())\r
- {\r
- if ( ! is_array($plugins))\r
- {\r
- $plugins = array($plugins);\r
- }\r
- \r
- foreach ($plugins as $plugin)\r
- { \r
- $plugin = strtolower(str_replace(EXT, '', str_replace('_pi', '', $plugin)).'_pi'); \r
-\r
- if (isset($this->_ci_plugins[$plugin]))\r
- {\r
- continue;\r
- }\r
-\r
- if (file_exists(APPPATH.'plugins/'.$plugin.EXT))\r
- {\r
- include_once(APPPATH.'plugins/'.$plugin.EXT); \r
- }\r
- else\r
- {\r
- if (file_exists(BASEPATH.'plugins/'.$plugin.EXT))\r
- {\r
- include_once(BASEPATH.'plugins/'.$plugin.EXT); \r
- }\r
- else\r
- {\r
- show_error('Unable to load the requested file: plugins/'.$plugin.EXT);\r
- }\r
- }\r
- \r
- $this->_ci_plugins[$plugin] = TRUE;\r
- log_message('debug', 'Plugin loaded: '.$plugin);\r
- } \r
- }\r
-\r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Load Plugins\r
- *\r
- * This is simply an alias to the above function in case the\r
- * user has written the plural form of this function.\r
- *\r
- * @access public\r
- * @param array\r
- * @return void\r
- */\r
- function plugins($plugins = array())\r
- {\r
- $this->plugin($plugins);\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Loads a language file\r
- *\r
- * @access public\r
- * @param array\r
- * @param string\r
- * @return void\r
- */\r
- function language($file = array(), $lang = '')\r
- {\r
- $CI =& get_instance();\r
-\r
- if ( ! is_array($file))\r
- {\r
- $file = array($file);\r
- }\r
-\r
- foreach ($file as $langfile)\r
- { \r
- $CI->lang->load($langfile, $lang);\r
- }\r
- }\r
-\r
- /**\r
- * Loads language files for scaffolding\r
- *\r
- * @access public\r
- * @param string\r
- * @return arra\r
- */\r
- function scaffold_language($file = '', $lang = '', $return = FALSE)\r
- {\r
- $CI =& get_instance();\r
- return $CI->lang->load($file, $lang, $return);\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Loads a config file\r
- *\r
- * @access public\r
- * @param string\r
- * @return void\r
- */\r
- function config($file = '', $use_sections = FALSE, $fail_gracefully = FALSE)\r
- { \r
- $CI =& get_instance();\r
- $CI->config->load($file, $use_sections, $fail_gracefully);\r
- }\r
-\r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Scaffolding Loader\r
- *\r
- * This initializing function works a bit different than the\r
- * others. It doesn't load the class. Instead, it simply\r
- * sets a flag indicating that scaffolding is allowed to be\r
- * used. The actual scaffolding function below is\r
- * called by the front controller based on whether the\r
- * second segment of the URL matches the "secret" scaffolding\r
- * word stored in the application/config/routes.php\r
- *\r
- * @access public\r
- * @param string\r
- * @return void\r
- */ \r
- function scaffolding($table = '')\r
- { \r
- if ($table === FALSE)\r
- {\r
- show_error('You must include the name of the table you would like to access when you initialize scaffolding');\r
- }\r
- \r
- $CI =& get_instance();\r
- $CI->_ci_scaffolding = TRUE;\r
- $CI->_ci_scaff_table = $table;\r
- }\r
-\r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Loader\r
- *\r
- * This function is used to load views and files.\r
- * Variables are prefixed with _ci_ to avoid symbol collision with\r
- * variables made available to view files\r
- *\r
- * @access private\r
- * @param array\r
- * @return void\r
- */\r
- function _ci_load($_ci_data)\r
- {\r
- // Set the default data variables\r
- foreach (array('_ci_view', '_ci_vars', '_ci_path', '_ci_return') as $_ci_val)\r
- {\r
- $$_ci_val = ( ! isset($_ci_data[$_ci_val])) ? FALSE : $_ci_data[$_ci_val];\r
- }\r
-\r
- // Set the path to the requested file\r
- if ($_ci_path == '')\r
- {\r
- $_ci_ext = pathinfo($_ci_view, PATHINFO_EXTENSION);\r
- $_ci_file = ($_ci_ext == '') ? $_ci_view.EXT : $_ci_view;\r
- $_ci_path = $this->_ci_view_path.$_ci_file;\r
- }\r
- else\r
- {\r
- $_ci_x = explode('/', $_ci_path);\r
- $_ci_file = end($_ci_x);\r
- }\r
- \r
- if ( ! file_exists($_ci_path))\r
- {\r
- show_error('Unable to load the requested file: '.$_ci_file);\r
- }\r
- \r
- // This allows anything loaded using $this->load (views, files, etc.)\r
- // to become accessible from within the Controller and Model functions.\r
- // Only needed when running PHP 5\r
- \r
- if ($this->_ci_is_instance())\r
- {\r
- $_ci_CI =& get_instance();\r
- foreach (get_object_vars($_ci_CI) as $_ci_key => $_ci_var)\r
- {\r
- if ( ! isset($this->$_ci_key))\r
- {\r
- $this->$_ci_key =& $_ci_CI->$_ci_key;\r
- }\r
- }\r
- }\r
-\r
- /*\r
- * Extract and cache variables\r
- *\r
- * You can either set variables using the dedicated $this->load_vars()\r
- * function or via the second parameter of this function. We'll merge\r
- * the two types and cache them so that views that are embedded within\r
- * other views can have access to these variables.\r
- */ \r
- if (is_array($_ci_vars))\r
- {\r
- $this->_ci_cached_vars = array_merge($this->_ci_cached_vars, $_ci_vars);\r
- }\r
- extract($this->_ci_cached_vars);\r
- \r
- /*\r
- * Buffer the output\r
- *\r
- * We buffer the output for two reasons:\r
- * 1. Speed. You get a significant speed boost.\r
- * 2. So that the final rendered template can be\r
- * post-processed by the output class. Why do we\r
- * need post processing? For one thing, in order to\r
- * show the elapsed page load time. Unless we\r
- * can intercept the content right before it's sent to\r
- * the browser and then stop the timer it won't be accurate.\r
- */\r
- ob_start();\r
- \r
- // If the PHP installation does not support short tags we'll\r
- // do a little string replacement, changing the short tags\r
- // to standard PHP echo statements.\r
- \r
- if ((bool) @ini_get('short_open_tag') === FALSE AND config_item('rewrite_short_tags') == TRUE)\r
- {\r
- echo eval('?>'.preg_replace("/;*\s*\?>/", "; ?>", str_replace('<?=', '<?php echo ', file_get_contents($_ci_path))));\r
- }\r
- else\r
- {\r
- include($_ci_path); // include() vs include_once() allows for multiple views with the same name\r
- }\r
- \r
- log_message('debug', 'File loaded: '.$_ci_path);\r
- \r
- // Return the file data if requested\r
- if ($_ci_return === TRUE)\r
- { \r
- $buffer = ob_get_contents();\r
- @ob_end_clean();\r
- return $buffer;\r
- }\r
-\r
- /*\r
- * Flush the buffer... or buff the flusher?\r
- *\r
- * In order to permit views to be nested within\r
- * other views, we need to flush the content back out whenever\r
- * we are beyond the first level of output buffering so that\r
- * it can be seen and included properly by the first included\r
- * template and any subsequent ones. Oy!\r
- *\r
- */ \r
- if (ob_get_level() > $this->_ci_ob_level + 1)\r
- {\r
- ob_end_flush();\r
- }\r
- else\r
- {\r
- // PHP 4 requires that we use a global\r
- global $OUT;\r
- $OUT->append_output(ob_get_contents());\r
- @ob_end_clean();\r
- }\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Load class\r
- *\r
- * This function loads the requested class.\r
- *\r
- * @access private\r
- * @param string the item that is being loaded\r
- * @param mixed any additional parameters\r
- * @param string an optional object name\r
- * @return void\r
- */\r
- function _ci_load_class($class, $params = NULL, $object_name = NULL)\r
- { \r
- // Get the class name, and while we're at it trim any slashes. \r
- // The directory path can be included as part of the class name, \r
- // but we don't want a leading slash\r
- $class = str_replace(EXT, '', trim($class, '/'));\r
- \r
- // Was the path included with the class name?\r
- // We look for a slash to determine this\r
- $subdir = '';\r
- if (strpos($class, '/') !== FALSE)\r
- {\r
- // explode the path so we can separate the filename from the path\r
- $x = explode('/', $class); \r
- \r
- // Reset the $class variable now that we know the actual filename\r
- $class = end($x);\r
- \r
- // Kill the filename from the array\r
- unset($x[count($x)-1]);\r
- \r
- // Glue the path back together, sans filename\r
- $subdir = implode($x, '/').'/';\r
- }\r
-\r
- // We'll test for both lowercase and capitalized versions of the file name\r
- foreach (array(ucfirst($class), strtolower($class)) as $class)\r
- {\r
- $subclass = APPPATH.'libraries/'.$subdir.config_item('subclass_prefix').$class.EXT;\r
-\r
- // Is this a class extension request? \r
- if (file_exists($subclass))\r
- {\r
- $baseclass = BASEPATH.'libraries/'.ucfirst($class).EXT;\r
- \r
- if ( ! file_exists($baseclass))\r
- {\r
- log_message('error', "Unable to load the requested class: ".$class);\r
- show_error("Unable to load the requested class: ".$class);\r
- }\r
-\r
- // Safety: Was the class already loaded by a previous call?\r
- if (in_array($subclass, $this->_ci_loaded_files))\r
- {\r
- // Before we deem this to be a duplicate request, let's see\r
- // if a custom object name is being supplied. If so, we'll\r
- // return a new instance of the object\r
- if ( ! is_null($object_name))\r
- {\r
- $CI =& get_instance();\r
- if ( ! isset($CI->$object_name))\r
- {\r
- return $this->_ci_init_class($class, config_item('subclass_prefix'), $params, $object_name); \r
- }\r
- }\r
- \r
- $is_duplicate = TRUE;\r
- log_message('debug', $class." class already loaded. Second attempt ignored.");\r
- return;\r
- }\r
- \r
- include_once($baseclass); \r
- include_once($subclass);\r
- $this->_ci_loaded_files[] = $subclass;\r
- \r
- return $this->_ci_init_class($class, config_item('subclass_prefix'), $params, $object_name); \r
- }\r
- \r
- // Lets search for the requested library file and load it.\r
- $is_duplicate = FALSE; \r
- for ($i = 1; $i < 3; $i++)\r
- {\r
- $path = ($i % 2) ? APPPATH : BASEPATH; \r
- $filepath = $path.'libraries/'.$subdir.$class.EXT;\r
- \r
- // Does the file exist? No? Bummer...\r
- if ( ! file_exists($filepath))\r
- {\r
- continue;\r
- }\r
- \r
- // Safety: Was the class already loaded by a previous call?\r
- if (in_array($filepath, $this->_ci_loaded_files))\r
- {\r
- // Before we deem this to be a duplicate request, let's see\r
- // if a custom object name is being supplied. If so, we'll\r
- // return a new instance of the object\r
- if ( ! is_null($object_name))\r
- {\r
- $CI =& get_instance();\r
- if ( ! isset($CI->$object_name))\r
- {\r
- return $this->_ci_init_class($class, '', $params, $object_name);\r
- }\r
- }\r
- \r
- $is_duplicate = TRUE;\r
- log_message('debug', $class." class already loaded. Second attempt ignored.");\r
- return;\r
- }\r
- \r
- include_once($filepath);\r
- $this->_ci_loaded_files[] = $filepath;\r
- return $this->_ci_init_class($class, '', $params, $object_name);\r
- }\r
- } // END FOREACH\r
-\r
- // One last attempt. Maybe the library is in a subdirectory, but it wasn't specified?\r
- if ($subdir == '')\r
- {\r
- $path = strtolower($class).'/'.$class;\r
- return $this->_ci_load_class($path, $params);\r
- }\r
- \r
- // If we got this far we were unable to find the requested class.\r
- // We do not issue errors if the load call failed due to a duplicate request\r
- if ($is_duplicate == FALSE)\r
- {\r
- log_message('error', "Unable to load the requested class: ".$class);\r
- show_error("Unable to load the requested class: ".$class);\r
- }\r
- }\r
- \r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Instantiates a class\r
- *\r
- * @access private\r
- * @param string\r
- * @param string\r
- * @param string an optional object name\r
- * @return null\r
- */\r
- function _ci_init_class($class, $prefix = '', $config = FALSE, $object_name = NULL)\r
- { \r
- // Is there an associated config file for this class?\r
- if ($config === NULL)\r
- {\r
- // We test for both uppercase and lowercase, for servers that\r
- // are case-sensitive with regard to file names\r
- if (file_exists(APPPATH.'config/'.strtolower($class).EXT))\r
- {\r
- include_once(APPPATH.'config/'.strtolower($class).EXT);\r
- } \r
- else\r
- {\r
- if (file_exists(APPPATH.'config/'.ucfirst(strtolower($class)).EXT))\r
- {\r
- include_once(APPPATH.'config/'.ucfirst(strtolower($class)).EXT);\r
- } \r
- }\r
- }\r
- \r
- if ($prefix == '')\r
- { \r
- if (class_exists('CI_'.$class)) \r
- {\r
- $name = 'CI_'.$class;\r
- }\r
- elseif (class_exists(config_item('subclass_prefix').$class)) \r
- {\r
- $name = config_item('subclass_prefix').$class;\r
- }\r
- else\r
- {\r
- $name = $class;\r
- }\r
- }\r
- else\r
- {\r
- $name = $prefix.$class;\r
- }\r
- \r
- // Is the class name valid?\r
- if ( ! class_exists($name))\r
- {\r
- log_message('error', "Non-existent class: ".$name);\r
- show_error("Non-existent class: ".$class);\r
- }\r
- \r
- // Set the variable name we will assign the class to\r
- // Was a custom class name supplied? If so we'll use it\r
- $class = strtolower($class);\r
- \r
- if (is_null($object_name))\r
- {\r
- $classvar = ( ! isset($this->_ci_varmap[$class])) ? $class : $this->_ci_varmap[$class];\r
- }\r
- else\r
- {\r
- $classvar = $object_name;\r
- }\r
-\r
- // Save the class name and object name \r
- $this->_ci_classes[$class] = $classvar;\r
-\r
- // Instantiate the class \r
- $CI =& get_instance();\r
- if ($config !== NULL)\r
- {\r
- $CI->$classvar = new $name($config);\r
- }\r
- else\r
- { \r
- $CI->$classvar = new $name;\r
- } \r
- } \r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Autoloader\r
- *\r
- * The config/autoload.php file contains an array that permits sub-systems,\r
- * libraries, plugins, and helpers to be loaded automatically.\r
- *\r
- * @access private\r
- * @param array\r
- * @return void\r
- */\r
- function _ci_autoloader()\r
- { \r
- include_once(APPPATH.'config/autoload'.EXT);\r
- \r
- if ( ! isset($autoload))\r
- {\r
- return FALSE;\r
- }\r
- \r
- // Load any custom config file\r
- if (count($autoload['config']) > 0)\r
- { \r
- $CI =& get_instance();\r
- foreach ($autoload['config'] as $key => $val)\r
- {\r
- $CI->config->load($val);\r
- }\r
- } \r
-\r
- // Autoload plugins, helpers and languages\r
- foreach (array('helper', 'plugin', 'language') as $type)\r
- { \r
- if (isset($autoload[$type]) AND count($autoload[$type]) > 0)\r
- {\r
- $this->$type($autoload[$type]);\r
- } \r
- }\r
-\r
- // A little tweak to remain backward compatible\r
- // The $autoload['core'] item was deprecated\r
- if ( ! isset($autoload['libraries']))\r
- {\r
- $autoload['libraries'] = $autoload['core'];\r
- }\r
- \r
- // Load libraries\r
- if (isset($autoload['libraries']) AND count($autoload['libraries']) > 0)\r
- {\r
- // Load the database driver.\r
- if (in_array('database', $autoload['libraries']))\r
- {\r
- $this->database();\r
- $autoload['libraries'] = array_diff($autoload['libraries'], array('database'));\r
- }\r
-\r
- // Load scaffolding\r
- if (in_array('scaffolding', $autoload['libraries']))\r
- {\r
- $this->scaffolding();\r
- $autoload['libraries'] = array_diff($autoload['libraries'], array('scaffolding'));\r
- }\r
- \r
- // Load all other libraries\r
- foreach ($autoload['libraries'] as $item)\r
- {\r
- $this->library($item);\r
- }\r
- } \r
-\r
- // Autoload models\r
- if (isset($autoload['model']))\r
- {\r
- $this->model($autoload['model']);\r
- }\r
-\r
- }\r
- \r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Assign to Models\r
- *\r
- * Makes sure that anything loaded by the loader class (libraries, plugins, etc.)\r
- * will be available to models, if any exist.\r
- *\r
- * @access private\r
- * @param object\r
- * @return array\r
- */\r
- function _ci_assign_to_models()\r
- {\r
- if (count($this->_ci_models) == 0)\r
- {\r
- return;\r
- }\r
- \r
- if ($this->_ci_is_instance())\r
- {\r
- $CI =& get_instance();\r
- foreach ($this->_ci_models as $model)\r
- { \r
- $CI->$model->_assign_libraries();\r
- }\r
- }\r
- else\r
- { \r
- foreach ($this->_ci_models as $model)\r
- { \r
- $this->$model->_assign_libraries();\r
- }\r
- }\r
- } \r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Object to Array\r
- *\r
- * Takes an object as input and converts the class variables to array key/vals\r
- *\r
- * @access private\r
- * @param object\r
- * @return array\r
- */\r
- function _ci_object_to_array($object)\r
- {\r
- return (is_object($object)) ? get_object_vars($object) : $object;\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Determines whether we should use the CI instance or $this\r
- *\r
- * @access private\r
- * @return bool\r
- */\r
- function _ci_is_instance()\r
- {\r
- if ($this->_ci_is_php5 == TRUE)\r
- {\r
- return TRUE;\r
- }\r
- \r
- global $CI;\r
- return (is_object($CI)) ? TRUE : FALSE;\r
- }\r
-\r
-}\r
-\r
-/* End of file Loader.php */\r
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package CodeIgniter
+ * @author ExpressionEngine Dev Team
+ * @copyright Copyright (c) 2008, EllisLab, Inc.
+ * @license http://codeigniter.com/user_guide/license.html
+ * @link http://codeigniter.com
+ * @since Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Loader Class
+ *
+ * Loads views and files
+ *
+ * @package CodeIgniter
+ * @subpackage Libraries
+ * @author ExpressionEngine Dev Team
+ * @category Loader
+ * @link http://codeigniter.com/user_guide/libraries/loader.html
+ */
+class CI_Loader {
+
+ // All these are set automatically. Don't mess with them.
+ var $_ci_ob_level;
+ var $_ci_view_path = '';
+ var $_ci_is_php5 = FALSE;
+ var $_ci_is_instance = FALSE; // Whether we should use $this or $CI =& get_instance()
+ var $_ci_cached_vars = array();
+ var $_ci_classes = array();
+ var $_ci_loaded_files = array();
+ var $_ci_models = array();
+ var $_ci_helpers = array();
+ var $_ci_plugins = array();
+ var $_ci_varmap = array('unit_test' => 'unit', 'user_agent' => 'agent');
+
+
+ /**
+ * Constructor
+ *
+ * Sets the path to the view files and gets the initial output buffering level
+ *
+ * @access public
+ */
+ function CI_Loader()
+ {
+ $this->_ci_is_php5 = (floor(phpversion()) >= 5) ? TRUE : FALSE;
+ $this->_ci_view_path = APPPATH.'views/';
+ $this->_ci_ob_level = ob_get_level();
+
+ log_message('debug', "Loader Class Initialized");
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Class Loader
+ *
+ * This function lets users load and instantiate classes.
+ * It is designed to be called from a user's app controllers.
+ *
+ * @access public
+ * @param string the name of the class
+ * @param mixed the optional parameters
+ * @param string an optional object name
+ * @return void
+ */
+ function library($library = '', $params = NULL, $object_name = NULL)
+ {
+ if ($library == '')
+ {
+ return FALSE;
+ }
+
+ if ( ! is_null($params) AND ! is_array($params))
+ {
+ $params = NULL;
+ }
+
+ if (is_array($library))
+ {
+ foreach ($library as $class)
+ {
+ $this->_ci_load_class($class, $params, $object_name);
+ }
+ }
+ else
+ {
+ $this->_ci_load_class($library, $params, $object_name);
+ }
+
+ $this->_ci_assign_to_models();
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Model Loader
+ *
+ * This function lets users load and instantiate models.
+ *
+ * @access public
+ * @param string the name of the class
+ * @param string name for the model
+ * @param bool database connection
+ * @return void
+ */
+ function model($model, $name = '', $db_conn = FALSE)
+ {
+ if (is_array($model))
+ {
+ foreach($model as $babe)
+ {
+ $this->model($babe);
+ }
+ return;
+ }
+
+ if ($model == '')
+ {
+ return;
+ }
+
+ // Is the model in a sub-folder? If so, parse out the filename and path.
+ if (strpos($model, '/') === FALSE)
+ {
+ $path = '';
+ }
+ else
+ {
+ $x = explode('/', $model);
+ $model = end($x);
+ unset($x[count($x)-1]);
+ $path = implode('/', $x).'/';
+ }
+
+ if ($name == '')
+ {
+ $name = $model;
+ }
+
+ if (in_array($name, $this->_ci_models, TRUE))
+ {
+ return;
+ }
+
+ $CI =& get_instance();
+ if (isset($CI->$name))
+ {
+ show_error('The model name you are loading is the name of a resource that is already being used: '.$name);
+ }
+
+ $model = strtolower($model);
+
+ if ( ! file_exists(APPPATH.'models/'.$path.$model.EXT))
+ {
+ show_error('Unable to locate the model you have specified: '.$model);
+ }
+
+ if ($db_conn !== FALSE AND ! class_exists('CI_DB'))
+ {
+ if ($db_conn === TRUE)
+ $db_conn = '';
+
+ $CI->load->database($db_conn, FALSE, TRUE);
+ }
+
+ if ( ! class_exists('Model'))
+ {
+ load_class('Model', FALSE);
+ }
+
+ require_once(APPPATH.'models/'.$path.$model.EXT);
+
+ $model = ucfirst($model);
+
+ $CI->$name = new $model();
+ $CI->$name->_assign_libraries();
+
+ $this->_ci_models[] = $name;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Database Loader
+ *
+ * @access public
+ * @param string the DB credentials
+ * @param bool whether to return the DB object
+ * @param bool whether to enable active record (this allows us to override the config setting)
+ * @return object
+ */
+ function database($params = '', $return = FALSE, $active_record = FALSE)
+ {
+ // Grab the super object
+ $CI =& get_instance();
+
+ // Do we even need to load the database class?
+ if (class_exists('CI_DB') AND $return == FALSE AND $active_record == FALSE AND isset($CI->db) AND is_object($CI->db))
+ {
+ return FALSE;
+ }
+
+ require_once(BASEPATH.'database/DB'.EXT);
+
+ if ($return === TRUE)
+ {
+ return DB($params, $active_record);
+ }
+
+ // Initialize the db variable. Needed to prevent
+ // reference errors with some configurations
+ $CI->db = '';
+
+ // Load the DB class
+ $CI->db =& DB($params, $active_record);
+
+ // Assign the DB object to any existing models
+ $this->_ci_assign_to_models();
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Load the Utilities Class
+ *
+ * @access public
+ * @return string
+ */
+ function dbutil()
+ {
+ if ( ! class_exists('CI_DB'))
+ {
+ $this->database();
+ }
+
+ $CI =& get_instance();
+
+ // for backwards compatibility, load dbforge so we can extend dbutils off it
+ // this use is deprecated and strongly discouraged
+ $CI->load->dbforge();
+
+ require_once(BASEPATH.'database/DB_utility'.EXT);
+ require_once(BASEPATH.'database/drivers/'.$CI->db->dbdriver.'/'.$CI->db->dbdriver.'_utility'.EXT);
+ $class = 'CI_DB_'.$CI->db->dbdriver.'_utility';
+
+ $CI->dbutil =& new $class();
+
+ $CI->load->_ci_assign_to_models();
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Load the Database Forge Class
+ *
+ * @access public
+ * @return string
+ */
+ function dbforge()
+ {
+ if ( ! class_exists('CI_DB'))
+ {
+ $this->database();
+ }
+
+ $CI =& get_instance();
+
+ require_once(BASEPATH.'database/DB_forge'.EXT);
+ require_once(BASEPATH.'database/drivers/'.$CI->db->dbdriver.'/'.$CI->db->dbdriver.'_forge'.EXT);
+ $class = 'CI_DB_'.$CI->db->dbdriver.'_forge';
+
+ $CI->dbforge = new $class();
+
+ $CI->load->_ci_assign_to_models();
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Load View
+ *
+ * This function is used to load a "view" file. It has three parameters:
+ *
+ * 1. The name of the "view" file to be included.
+ * 2. An associative array of data to be extracted for use in the view.
+ * 3. TRUE/FALSE - whether to return the data or load it. In
+ * some cases it's advantageous to be able to return data so that
+ * a developer can process it in some way.
+ *
+ * @access public
+ * @param string
+ * @param array
+ * @param bool
+ * @return void
+ */
+ function view($view, $vars = array(), $return = FALSE)
+ {
+ return $this->_ci_load(array('_ci_view' => $view, '_ci_vars' => $this->_ci_object_to_array($vars), '_ci_return' => $return));
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Load File
+ *
+ * This is a generic file loader
+ *
+ * @access public
+ * @param string
+ * @param bool
+ * @return string
+ */
+ function file($path, $return = FALSE)
+ {
+ return $this->_ci_load(array('_ci_path' => $path, '_ci_return' => $return));
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Set Variables
+ *
+ * Once variables are set they become available within
+ * the controller class and its "view" files.
+ *
+ * @access public
+ * @param array
+ * @return void
+ */
+ function vars($vars = array(), $val = '')
+ {
+ if ($val != '' AND is_string($vars))
+ {
+ $vars = array($vars => $val);
+ }
+
+ $vars = $this->_ci_object_to_array($vars);
+
+ if (is_array($vars) AND count($vars) > 0)
+ {
+ foreach ($vars as $key => $val)
+ {
+ $this->_ci_cached_vars[$key] = $val;
+ }
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Load Helper
+ *
+ * This function loads the specified helper file.
+ *
+ * @access public
+ * @param mixed
+ * @return void
+ */
+ function helper($helpers = array())
+ {
+ if ( ! is_array($helpers))
+ {
+ $helpers = array($helpers);
+ }
+
+ foreach ($helpers as $helper)
+ {
+ $helper = strtolower(str_replace(EXT, '', str_replace('_helper', '', $helper)).'_helper');
+
+ if (isset($this->_ci_helpers[$helper]))
+ {
+ continue;
+ }
+
+ $ext_helper = APPPATH.'helpers/'.config_item('subclass_prefix').$helper.EXT;
+
+ // Is this a helper extension request?
+ if (file_exists($ext_helper))
+ {
+ $base_helper = BASEPATH.'helpers/'.$helper.EXT;
+
+ if ( ! file_exists($base_helper))
+ {
+ show_error('Unable to load the requested file: helpers/'.$helper.EXT);
+ }
+
+ include_once($ext_helper);
+ include_once($base_helper);
+ }
+ elseif (file_exists(APPPATH.'helpers/'.$helper.EXT))
+ {
+ include_once(APPPATH.'helpers/'.$helper.EXT);
+ }
+ else
+ {
+ if (file_exists(BASEPATH.'helpers/'.$helper.EXT))
+ {
+ include_once(BASEPATH.'helpers/'.$helper.EXT);
+ }
+ else
+ {
+ show_error('Unable to load the requested file: helpers/'.$helper.EXT);
+ }
+ }
+
+ $this->_ci_helpers[$helper] = TRUE;
+ log_message('debug', 'Helper loaded: '.$helper);
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Load Helpers
+ *
+ * This is simply an alias to the above function in case the
+ * user has written the plural form of this function.
+ *
+ * @access public
+ * @param array
+ * @return void
+ */
+ function helpers($helpers = array())
+ {
+ $this->helper($helpers);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Load Plugin
+ *
+ * This function loads the specified plugin.
+ *
+ * @access public
+ * @param array
+ * @return void
+ */
+ function plugin($plugins = array())
+ {
+ if ( ! is_array($plugins))
+ {
+ $plugins = array($plugins);
+ }
+
+ foreach ($plugins as $plugin)
+ {
+ $plugin = strtolower(str_replace(EXT, '', str_replace('_pi', '', $plugin)).'_pi');
+
+ if (isset($this->_ci_plugins[$plugin]))
+ {
+ continue;
+ }
+
+ if (file_exists(APPPATH.'plugins/'.$plugin.EXT))
+ {
+ include_once(APPPATH.'plugins/'.$plugin.EXT);
+ }
+ else
+ {
+ if (file_exists(BASEPATH.'plugins/'.$plugin.EXT))
+ {
+ include_once(BASEPATH.'plugins/'.$plugin.EXT);
+ }
+ else
+ {
+ show_error('Unable to load the requested file: plugins/'.$plugin.EXT);
+ }
+ }
+
+ $this->_ci_plugins[$plugin] = TRUE;
+ log_message('debug', 'Plugin loaded: '.$plugin);
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Load Plugins
+ *
+ * This is simply an alias to the above function in case the
+ * user has written the plural form of this function.
+ *
+ * @access public
+ * @param array
+ * @return void
+ */
+ function plugins($plugins = array())
+ {
+ $this->plugin($plugins);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Loads a language file
+ *
+ * @access public
+ * @param array
+ * @param string
+ * @return void
+ */
+ function language($file = array(), $lang = '')
+ {
+ $CI =& get_instance();
+
+ if ( ! is_array($file))
+ {
+ $file = array($file);
+ }
+
+ foreach ($file as $langfile)
+ {
+ $CI->lang->load($langfile, $lang);
+ }
+ }
+
+ /**
+ * Loads language files for scaffolding
+ *
+ * @access public
+ * @param string
+ * @return arra
+ */
+ function scaffold_language($file = '', $lang = '', $return = FALSE)
+ {
+ $CI =& get_instance();
+ return $CI->lang->load($file, $lang, $return);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Loads a config file
+ *
+ * @access public
+ * @param string
+ * @return void
+ */
+ function config($file = '', $use_sections = FALSE, $fail_gracefully = FALSE)
+ {
+ $CI =& get_instance();
+ $CI->config->load($file, $use_sections, $fail_gracefully);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Scaffolding Loader
+ *
+ * This initializing function works a bit different than the
+ * others. It doesn't load the class. Instead, it simply
+ * sets a flag indicating that scaffolding is allowed to be
+ * used. The actual scaffolding function below is
+ * called by the front controller based on whether the
+ * second segment of the URL matches the "secret" scaffolding
+ * word stored in the application/config/routes.php
+ *
+ * @access public
+ * @param string
+ * @return void
+ */
+ function scaffolding($table = '')
+ {
+ if ($table === FALSE)
+ {
+ show_error('You must include the name of the table you would like to access when you initialize scaffolding');
+ }
+
+ $CI =& get_instance();
+ $CI->_ci_scaffolding = TRUE;
+ $CI->_ci_scaff_table = $table;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Loader
+ *
+ * This function is used to load views and files.
+ * Variables are prefixed with _ci_ to avoid symbol collision with
+ * variables made available to view files
+ *
+ * @access private
+ * @param array
+ * @return void
+ */
+ function _ci_load($_ci_data)
+ {
+ // Set the default data variables
+ foreach (array('_ci_view', '_ci_vars', '_ci_path', '_ci_return') as $_ci_val)
+ {
+ $$_ci_val = ( ! isset($_ci_data[$_ci_val])) ? FALSE : $_ci_data[$_ci_val];
+ }
+
+ // Set the path to the requested file
+ if ($_ci_path == '')
+ {
+ $_ci_ext = pathinfo($_ci_view, PATHINFO_EXTENSION);
+ $_ci_file = ($_ci_ext == '') ? $_ci_view.EXT : $_ci_view;
+ $_ci_path = $this->_ci_view_path.$_ci_file;
+ }
+ else
+ {
+ $_ci_x = explode('/', $_ci_path);
+ $_ci_file = end($_ci_x);
+ }
+
+ if ( ! file_exists($_ci_path))
+ {
+ show_error('Unable to load the requested file: '.$_ci_file);
+ }
+
+ // This allows anything loaded using $this->load (views, files, etc.)
+ // to become accessible from within the Controller and Model functions.
+ // Only needed when running PHP 5
+
+ if ($this->_ci_is_instance())
+ {
+ $_ci_CI =& get_instance();
+ foreach (get_object_vars($_ci_CI) as $_ci_key => $_ci_var)
+ {
+ if ( ! isset($this->$_ci_key))
+ {
+ $this->$_ci_key =& $_ci_CI->$_ci_key;
+ }
+ }
+ }
+
+ /*
+ * Extract and cache variables
+ *
+ * You can either set variables using the dedicated $this->load_vars()
+ * function or via the second parameter of this function. We'll merge
+ * the two types and cache them so that views that are embedded within
+ * other views can have access to these variables.
+ */
+ if (is_array($_ci_vars))
+ {
+ $this->_ci_cached_vars = array_merge($this->_ci_cached_vars, $_ci_vars);
+ }
+ extract($this->_ci_cached_vars);
+
+ /*
+ * Buffer the output
+ *
+ * We buffer the output for two reasons:
+ * 1. Speed. You get a significant speed boost.
+ * 2. So that the final rendered template can be
+ * post-processed by the output class. Why do we
+ * need post processing? For one thing, in order to
+ * show the elapsed page load time. Unless we
+ * can intercept the content right before it's sent to
+ * the browser and then stop the timer it won't be accurate.
+ */
+ ob_start();
+
+ // If the PHP installation does not support short tags we'll
+ // do a little string replacement, changing the short tags
+ // to standard PHP echo statements.
+
+ if ((bool) @ini_get('short_open_tag') === FALSE AND config_item('rewrite_short_tags') == TRUE)
+ {
+ echo eval('?>'.preg_replace("/;*\s*\?>/", "; ?>", str_replace('<?=', '<?php echo ', file_get_contents($_ci_path))));
+ }
+ else
+ {
+ include($_ci_path); // include() vs include_once() allows for multiple views with the same name
+ }
+
+ log_message('debug', 'File loaded: '.$_ci_path);
+
+ // Return the file data if requested
+ if ($_ci_return === TRUE)
+ {
+ $buffer = ob_get_contents();
+ @ob_end_clean();
+ return $buffer;
+ }
+
+ /*
+ * Flush the buffer... or buff the flusher?
+ *
+ * In order to permit views to be nested within
+ * other views, we need to flush the content back out whenever
+ * we are beyond the first level of output buffering so that
+ * it can be seen and included properly by the first included
+ * template and any subsequent ones. Oy!
+ *
+ */
+ if (ob_get_level() > $this->_ci_ob_level + 1)
+ {
+ ob_end_flush();
+ }
+ else
+ {
+ // PHP 4 requires that we use a global
+ global $OUT;
+ $OUT->append_output(ob_get_contents());
+ @ob_end_clean();
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Load class
+ *
+ * This function loads the requested class.
+ *
+ * @access private
+ * @param string the item that is being loaded
+ * @param mixed any additional parameters
+ * @param string an optional object name
+ * @return void
+ */
+ function _ci_load_class($class, $params = NULL, $object_name = NULL)
+ {
+ // Get the class name, and while we're at it trim any slashes.
+ // The directory path can be included as part of the class name,
+ // but we don't want a leading slash
+ $class = str_replace(EXT, '', trim($class, '/'));
+
+ // Was the path included with the class name?
+ // We look for a slash to determine this
+ $subdir = '';
+ if (strpos($class, '/') !== FALSE)
+ {
+ // explode the path so we can separate the filename from the path
+ $x = explode('/', $class);
+
+ // Reset the $class variable now that we know the actual filename
+ $class = end($x);
+
+ // Kill the filename from the array
+ unset($x[count($x)-1]);
+
+ // Glue the path back together, sans filename
+ $subdir = implode($x, '/').'/';
+ }
+
+ // We'll test for both lowercase and capitalized versions of the file name
+ foreach (array(ucfirst($class), strtolower($class)) as $class)
+ {
+ $subclass = APPPATH.'libraries/'.$subdir.config_item('subclass_prefix').$class.EXT;
+
+ // Is this a class extension request?
+ if (file_exists($subclass))
+ {
+ $baseclass = BASEPATH.'libraries/'.ucfirst($class).EXT;
+
+ if ( ! file_exists($baseclass))
+ {
+ log_message('error', "Unable to load the requested class: ".$class);
+ show_error("Unable to load the requested class: ".$class);
+ }
+
+ // Safety: Was the class already loaded by a previous call?
+ if (in_array($subclass, $this->_ci_loaded_files))
+ {
+ // Before we deem this to be a duplicate request, let's see
+ // if a custom object name is being supplied. If so, we'll
+ // return a new instance of the object
+ if ( ! is_null($object_name))
+ {
+ $CI =& get_instance();
+ if ( ! isset($CI->$object_name))
+ {
+ return $this->_ci_init_class($class, config_item('subclass_prefix'), $params, $object_name);
+ }
+ }
+
+ $is_duplicate = TRUE;
+ log_message('debug', $class." class already loaded. Second attempt ignored.");
+ return;
+ }
+
+ include_once($baseclass);
+ include_once($subclass);
+ $this->_ci_loaded_files[] = $subclass;
+
+ return $this->_ci_init_class($class, config_item('subclass_prefix'), $params, $object_name);
+ }
+
+ // Lets search for the requested library file and load it.
+ $is_duplicate = FALSE;
+ for ($i = 1; $i < 3; $i++)
+ {
+ $path = ($i % 2) ? APPPATH : BASEPATH;
+ $filepath = $path.'libraries/'.$subdir.$class.EXT;
+
+ // Does the file exist? No? Bummer...
+ if ( ! file_exists($filepath))
+ {
+ continue;
+ }
+
+ // Safety: Was the class already loaded by a previous call?
+ if (in_array($filepath, $this->_ci_loaded_files))
+ {
+ // Before we deem this to be a duplicate request, let's see
+ // if a custom object name is being supplied. If so, we'll
+ // return a new instance of the object
+ if ( ! is_null($object_name))
+ {
+ $CI =& get_instance();
+ if ( ! isset($CI->$object_name))
+ {
+ return $this->_ci_init_class($class, '', $params, $object_name);
+ }
+ }
+
+ $is_duplicate = TRUE;
+ log_message('debug', $class." class already loaded. Second attempt ignored.");
+ return;
+ }
+
+ include_once($filepath);
+ $this->_ci_loaded_files[] = $filepath;
+ return $this->_ci_init_class($class, '', $params, $object_name);
+ }
+ } // END FOREACH
+
+ // One last attempt. Maybe the library is in a subdirectory, but it wasn't specified?
+ if ($subdir == '')
+ {
+ $path = strtolower($class).'/'.$class;
+ return $this->_ci_load_class($path, $params);
+ }
+
+ // If we got this far we were unable to find the requested class.
+ // We do not issue errors if the load call failed due to a duplicate request
+ if ($is_duplicate == FALSE)
+ {
+ log_message('error', "Unable to load the requested class: ".$class);
+ show_error("Unable to load the requested class: ".$class);
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Instantiates a class
+ *
+ * @access private
+ * @param string
+ * @param string
+ * @param string an optional object name
+ * @return null
+ */
+ function _ci_init_class($class, $prefix = '', $config = FALSE, $object_name = NULL)
+ {
+ // Is there an associated config file for this class?
+ if ($config === NULL)
+ {
+ // We test for both uppercase and lowercase, for servers that
+ // are case-sensitive with regard to file names
+ if (file_exists(APPPATH.'config/'.strtolower($class).EXT))
+ {
+ include_once(APPPATH.'config/'.strtolower($class).EXT);
+ }
+ else
+ {
+ if (file_exists(APPPATH.'config/'.ucfirst(strtolower($class)).EXT))
+ {
+ include_once(APPPATH.'config/'.ucfirst(strtolower($class)).EXT);
+ }
+ }
+ }
+
+ if ($prefix == '')
+ {
+ if (class_exists('CI_'.$class))
+ {
+ $name = 'CI_'.$class;
+ }
+ elseif (class_exists(config_item('subclass_prefix').$class))
+ {
+ $name = config_item('subclass_prefix').$class;
+ }
+ else
+ {
+ $name = $class;
+ }
+ }
+ else
+ {
+ $name = $prefix.$class;
+ }
+
+ // Is the class name valid?
+ if ( ! class_exists($name))
+ {
+ log_message('error', "Non-existent class: ".$name);
+ show_error("Non-existent class: ".$class);
+ }
+
+ // Set the variable name we will assign the class to
+ // Was a custom class name supplied? If so we'll use it
+ $class = strtolower($class);
+
+ if (is_null($object_name))
+ {
+ $classvar = ( ! isset($this->_ci_varmap[$class])) ? $class : $this->_ci_varmap[$class];
+ }
+ else
+ {
+ $classvar = $object_name;
+ }
+
+ // Save the class name and object name
+ $this->_ci_classes[$class] = $classvar;
+
+ // Instantiate the class
+ $CI =& get_instance();
+ if ($config !== NULL)
+ {
+ $CI->$classvar = new $name($config);
+ }
+ else
+ {
+ $CI->$classvar = new $name;
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Autoloader
+ *
+ * The config/autoload.php file contains an array that permits sub-systems,
+ * libraries, plugins, and helpers to be loaded automatically.
+ *
+ * @access private
+ * @param array
+ * @return void
+ */
+ function _ci_autoloader()
+ {
+ include_once(APPPATH.'config/autoload'.EXT);
+
+ if ( ! isset($autoload))
+ {
+ return FALSE;
+ }
+
+ // Load any custom config file
+ if (count($autoload['config']) > 0)
+ {
+ $CI =& get_instance();
+ foreach ($autoload['config'] as $key => $val)
+ {
+ $CI->config->load($val);
+ }
+ }
+
+ // Autoload plugins, helpers and languages
+ foreach (array('helper', 'plugin', 'language') as $type)
+ {
+ if (isset($autoload[$type]) AND count($autoload[$type]) > 0)
+ {
+ $this->$type($autoload[$type]);
+ }
+ }
+
+ // A little tweak to remain backward compatible
+ // The $autoload['core'] item was deprecated
+ if ( ! isset($autoload['libraries']))
+ {
+ $autoload['libraries'] = $autoload['core'];
+ }
+
+ // Load libraries
+ if (isset($autoload['libraries']) AND count($autoload['libraries']) > 0)
+ {
+ // Load the database driver.
+ if (in_array('database', $autoload['libraries']))
+ {
+ $this->database();
+ $autoload['libraries'] = array_diff($autoload['libraries'], array('database'));
+ }
+
+ // Load scaffolding
+ if (in_array('scaffolding', $autoload['libraries']))
+ {
+ $this->scaffolding();
+ $autoload['libraries'] = array_diff($autoload['libraries'], array('scaffolding'));
+ }
+
+ // Load all other libraries
+ foreach ($autoload['libraries'] as $item)
+ {
+ $this->library($item);
+ }
+ }
+
+ // Autoload models
+ if (isset($autoload['model']))
+ {
+ $this->model($autoload['model']);
+ }
+
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Assign to Models
+ *
+ * Makes sure that anything loaded by the loader class (libraries, plugins, etc.)
+ * will be available to models, if any exist.
+ *
+ * @access private
+ * @param object
+ * @return array
+ */
+ function _ci_assign_to_models()
+ {
+ if (count($this->_ci_models) == 0)
+ {
+ return;
+ }
+
+ if ($this->_ci_is_instance())
+ {
+ $CI =& get_instance();
+ foreach ($this->_ci_models as $model)
+ {
+ $CI->$model->_assign_libraries();
+ }
+ }
+ else
+ {
+ foreach ($this->_ci_models as $model)
+ {
+ $this->$model->_assign_libraries();
+ }
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Object to Array
+ *
+ * Takes an object as input and converts the class variables to array key/vals
+ *
+ * @access private
+ * @param object
+ * @return array
+ */
+ function _ci_object_to_array($object)
+ {
+ return (is_object($object)) ? get_object_vars($object) : $object;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Determines whether we should use the CI instance or $this
+ *
+ * @access private
+ * @return bool
+ */
+ function _ci_is_instance()
+ {
+ if ($this->_ci_is_php5 == TRUE)
+ {
+ return TRUE;
+ }
+
+ global $CI;
+ return (is_object($CI)) ? TRUE : FALSE;
+ }
+
+}
+
+/* End of file Loader.php */
/* Location: ./system/libraries/Loader.php */
\ No newline at end of file
git://git.onelab.eu / www-register-wizard.git / blobdiff