/system/core/Loader.php
PHP | 1104 lines | 575 code | 153 blank | 376 comment | 82 complexity | dac1a7b3aded752dd38e1c776dce459b MD5 | raw file
Possible License(s): GPL-2.0, AGPL-1.0, LGPL-2.1
- <?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 */