--- /dev/null
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.1.6 or newer
+ *
+ * @package CodeIgniter
+ * @author ExpressionEngine Dev Team
+ * @copyright Copyright (c) 2008 - 2011, 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_library_paths = array();
+ var $_ci_model_paths = array();
+ var $_ci_helper_paths = array();
+ var $_base_classes = array(); // Set by the controller class
+ var $_ci_cached_vars = array();
+ var $_ci_classes = array();
+ var $_ci_loaded_files = array();
+ var $_ci_models = array();
+ var $_ci_helpers = 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 __construct()
+ {
+ $this->_ci_view_path = APPPATH.'views/';
+ $this->_ci_ob_level = ob_get_level();
+ $this->_ci_library_paths = array(APPPATH, BASEPATH);
+ $this->_ci_helper_paths = array(APPPATH, BASEPATH);
+ $this->_ci_model_paths = array(APPPATH);
+
+ log_message('debug', "Loader Class Initialized");
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Class Loader
+ *
+ * This function lets users load and instantiate classes.
+ * It is designed to be called from a user's app controllers.
+ *
+ * @access public
+ * @param string the name of the class
+ * @param mixed the optional parameters
+ * @param string an optional object name
+ * @return void
+ */
+ function library($library = '', $params = NULL, $object_name = NULL)
+ {
+ if (is_array($library))
+ {
+ foreach ($library as $class)
+ {
+ $this->library($class, $params);
+ }
+
+ return;
+ }
+
+ if ($library == '' OR isset($this->_base_classes[$library]))
+ {
+ return FALSE;
+ }
+
+ if ( ! is_null($params) && ! is_array($params))
+ {
+ $params = NULL;
+ }
+
+ $this->_ci_load_class($library, $params, $object_name);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Model Loader
+ *
+ * This function lets users load and instantiate models.
+ *
+ * @access public
+ * @param string the name of the class
+ * @param string name for the model
+ * @param bool database connection
+ * @return void
+ */
+ function model($model, $name = '', $db_conn = FALSE)
+ {
+ if (is_array($model))
+ {
+ foreach ($model as $babe)
+ {
+ $this->model($babe);
+ }
+ return;
+ }
+
+ if ($model == '')
+ {
+ return;
+ }
+
+ $path = '';
+
+ // Is the model in a sub-folder? If so, parse out the filename and path.
+ if (($last_slash = strrpos($model, '/')) !== FALSE)
+ {
+ // The path is in front of the last slash
+ $path = substr($model, 0, $last_slash + 1);
+
+ // And the model name behind it
+ $model = substr($model, $last_slash + 1);
+ }
+
+ if ($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);
+
+ foreach ($this->_ci_model_paths as $mod_path)
+ {
+ if ( ! file_exists($mod_path.'models/'.$path.$model.EXT))
+ {
+ continue;
+ }
+
+ 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('CI_Model'))
+ {
+ load_class('Model', 'core');
+ }
+
+ require_once($mod_path.'models/'.$path.$model.EXT);
+
+ $model = ucfirst($model);
+
+ $CI->$name = new $model();
+
+ $this->_ci_models[] = $name;
+ return;
+ }
+
+ // couldn't find the model
+ show_error('Unable to locate the model you have specified: '.$model);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * 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 = NULL)
+ {
+ // 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 $active_record == NULL AND isset($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);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * 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();
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * 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 $class();
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Load View
+ *
+ * This function is used to load a "view" file. It has three parameters:
+ *
+ * 1. The name of the "view" file to be included.
+ * 2. An associative array of data to be extracted for use in the view.
+ * 3. TRUE/FALSE - whether to return the data or load it. In
+ * some cases it's advantageous to be able to return data so that
+ * a developer can process it in some way.
+ *
+ * @access public
+ * @param string
+ * @param array
+ * @param bool
+ * @return void
+ */
+ function view($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())
+ {
+ foreach ($this->_ci_prep_filename($helpers, '_helper') as $helper)
+ {
+ if (isset($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);
+
+ $this->_ci_helpers[$helper] = TRUE;
+ log_message('debug', 'Helper loaded: '.$helper);
+ continue;
+ }
+
+ // Try to load the helper
+ foreach ($this->_ci_helper_paths as $path)
+ {
+ if (file_exists($path.'helpers/'.$helper.EXT))
+ {
+ include_once($path.'helpers/'.$helper.EXT);
+
+ $this->_ci_helpers[$helper] = TRUE;
+ log_message('debug', 'Helper loaded: '.$helper);
+ break;
+ }
+ }
+
+ // unable to load the helper
+ if ( ! isset($this->_ci_helpers[$helper]))
+ {
+ show_error('Unable to load the requested file: helpers/'.$helper.EXT);
+ }
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * 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);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * 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, $lang);
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Loads a config file
+ *
+ * @access public
+ * @param string
+ * @return void
+ */
+ function config($file = '', $use_sections = FALSE, $fail_gracefully = FALSE)
+ {
+ $CI =& get_instance();
+ $CI->config->load($file, $use_sections, $fail_gracefully);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Driver
+ *
+ * Loads a driver library
+ *
+ * @param string the name of the class
+ * @param mixed the optional parameters
+ * @param string an optional object name
+ * @return void
+ */
+ function driver($library = '', $params = NULL, $object_name = NULL)
+ {
+ if ( ! class_exists('CI_Driver_Library'))
+ {
+ // we aren't instantiating an object here, that'll be done by the Library itself
+ require BASEPATH.'libraries/Driver'.EXT;
+ }
+
+ // We can save the loader some time since Drivers will *always* be in a subfolder,
+ // and typically identically named to the library
+ if ( ! strpos($library, '/'))
+ {
+ $library = ucfirst($library).'/'.$library;
+ }
+
+ return $this->library($library, $params, $object_name);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Add Package Path
+ *
+ * Prepends a parent path to the library, model, helper, and config path arrays
+ *
+ * @access public
+ * @param string
+ * @return void
+ */
+ function add_package_path($path)
+ {
+ $path = rtrim($path, '/').'/';
+
+ array_unshift($this->_ci_library_paths, $path);
+ array_unshift($this->_ci_model_paths, $path);
+ array_unshift($this->_ci_helper_paths, $path);
+
+ // Add config file path
+ $config =& $this->_ci_get_component('config');
+ array_unshift($config->_config_paths, $path);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Get Package Paths
+ *
+ * Return a list of all package paths, by default it will ignore BASEPATH.
+ *
+ * @access public
+ * @param string
+ * @return void
+ */
+ function get_package_paths($include_base = FALSE)
+ {
+ return $include_base === TRUE ? $this->_ci_library_paths : $this->_ci_model_paths;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Remove Package Path
+ *
+ * Remove a path from the library, model, and helper path arrays if it exists
+ * If no path is provided, the most recently added path is removed.
+ *
+ * @access public
+ * @param type
+ * @return type
+ */
+ function remove_package_path($path = '', $remove_config_path = TRUE)
+ {
+ $config =& $this->_ci_get_component('config');
+
+ if ($path == '')
+ {
+ $void = array_shift($this->_ci_library_paths);
+ $void = array_shift($this->_ci_model_paths);
+ $void = array_shift($this->_ci_helper_paths);
+ $void = array_shift($config->_config_paths);
+ }
+ else
+ {
+ $path = rtrim($path, '/').'/';
+
+ foreach (array('_ci_library_paths', '_ci_model_paths', '_ci_helper_paths') as $var)
+ {
+ if (($key = array_search($path, $this->{$var})) !== FALSE)
+ {
+ unset($this->{$var}[$key]);
+ }
+ }
+
+ if (($key = array_search($path, $config->_config_paths)) !== FALSE)
+ {
+ unset($config->_config_paths[$key]);
+ }
+ }
+
+ // make sure the application default paths are still in the array
+ $this->_ci_library_paths = array_unique(array_merge($this->_ci_library_paths, array(APPPATH, BASEPATH)));
+ $this->_ci_helper_paths = array_unique(array_merge($this->_ci_helper_paths, array(APPPATH, BASEPATH)));
+ $this->_ci_model_paths = array_unique(array_merge($this->_ci_model_paths, array(APPPATH)));
+ $config->_config_paths = array_unique(array_merge($config->_config_paths, array(APPPATH)));
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * 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.
+
+ $_ci_CI =& get_instance();
+ foreach (get_object_vars($_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
+ {
+ $_ci_CI->output->append_output(ob_get_contents());
+ @ob_end_clean();
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Load class
+ *
+ * This function loads the requested class.
+ *
+ * @access private
+ * @param string the item that is being loaded
+ * @param mixed any additional parameters
+ * @param string an optional object name
+ * @return void
+ */
+ function _ci_load_class($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
+ $subdir = '';
+ if (($last_slash = strrpos($class, '/')) !== FALSE)
+ {
+ // Extract the path
+ $subdir = substr($class, 0, $last_slash + 1);
+
+ // Get the filename from the path
+ $class = substr($class, $last_slash + 1);
+ }
+
+ // We'll test for both lowercase and capitalized versions of the file name
+ foreach (array(ucfirst($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.
+ $is_duplicate = FALSE;
+ foreach ($this->_ci_library_paths as $path)
+ {
+ $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, $object_name = NULL)
+ {
+ // Is there an associated config file for this class? Note: these should always be lowercase
+ if ($config === NULL)
+ {
+ // Fetch the config paths containing any package paths
+ $config_component = $this->_ci_get_component('config');
+
+ if (is_array($config_component->_config_paths))
+ {
+ // Break on the first found file, thus package files
+ // are not overridden by default paths
+ foreach ($config_component->_config_paths as $path)
+ {
+ // We test for both uppercase and lowercase, for servers that
+ // are case-sensitive with regard to file names. Check for environment
+ // first, global next
+ if (defined('ENVIRONMENT') AND file_exists($path .'config/'.ENVIRONMENT.'/'.strtolower($class).EXT))
+ {
+ include_once($path .'config/'.ENVIRONMENT.'/'.strtolower($class).EXT);
+ break;
+ }
+ elseif (defined('ENVIRONMENT') AND file_exists($path .'config/'.ENVIRONMENT.'/'.ucfirst(strtolower($class)).EXT))
+ {
+ include_once($path .'config/'.ENVIRONMENT.'/'.ucfirst(strtolower($class)).EXT);
+ break;
+ }
+ elseif (file_exists($path .'config/'.strtolower($class).EXT))
+ {
+ include_once($path .'config/'.strtolower($class).EXT);
+ break;
+ }
+ elseif (file_exists($path .'config/'.ucfirst(strtolower($class)).EXT))
+ {
+ include_once($path .'config/'.ucfirst(strtolower($class)).EXT);
+ break;
+ }
+ }
+ }
+ }
+
+ if ($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 $name;
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Autoloader
+ *
+ * The config/autoload.php file contains an array that permits sub-systems,
+ * libraries, and helpers to be loaded automatically.
+ *
+ * @access private
+ * @param array
+ * @return void
+ */
+ function _ci_autoloader()
+ {
+ if (defined('ENVIRONMENT') AND file_exists(APPPATH.'config/'.ENVIRONMENT.'/autoload'.EXT))
+ {
+ include_once(APPPATH.'config/'.ENVIRONMENT.'/autoload'.EXT);
+ }
+ else
+ {
+ include_once(APPPATH.'config/autoload'.EXT);
+ }
+
+
+ if ( ! isset($autoload))
+ {
+ return FALSE;
+ }
+
+ // Autoload packages
+ if (isset($autoload['packages']))
+ {
+ foreach ($autoload['packages'] as $package_path)
+ {
+ $this->add_package_path($package_path);
+ }
+ }
+
+ // Load any custom config file
+ if (count($autoload['config']) > 0)
+ {
+ $CI =& get_instance();
+ foreach ($autoload['config'] as $key => $val)
+ {
+ $CI->config->load($val);
+ }
+ }
+
+ // Autoload helpers and languages
+ foreach (array('helper', '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']) AND isset($autoload['core']))
+ {
+ $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 all other libraries
+ foreach ($autoload['libraries'] as $item)
+ {
+ $this->library($item);
+ }
+ }
+
+ // Autoload models
+ if (isset($autoload['model']))
+ {
+ $this->model($autoload['model']);
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * 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) : $object;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Get a reference to a specific library or model
+ *
+ * @access private
+ * @return bool
+ */
+ function &_ci_get_component($component)
+ {
+ $CI =& get_instance();
+ return $CI->$component;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Prep filename
+ *
+ * This function preps the name of various items to make loading them more reliable.
+ *
+ * @access private
+ * @param mixed
+ * @return array
+ */
+ function _ci_prep_filename($filename, $extension)
+ {
+ if ( ! is_array($filename))
+ {
+ return array(strtolower(str_replace(EXT, '', str_replace($extension, '', $filename)).$extension));
+ }
+ else
+ {
+ foreach ($filename as $key => $val)
+ {
+ $filename[$key] = strtolower(str_replace(EXT, '', str_replace($extension, '', $val)).$extension);
+ }
+
+ return $filename;
+ }
+ }
+
+
+}
+
+/* End of file Loader.php */
+/* Location: ./system/core/Loader.php */
projects / living-lab-site.git / blobdiff