diff options
author | Derek Allard <derek.allard@ellislab.com> | 2007-02-06 00:55:06 +0100 |
---|---|---|
committer | Derek Allard <derek.allard@ellislab.com> | 2007-02-06 00:55:06 +0100 |
commit | 29eff53d35fd2fb1ba8867eab20794ef0a53d5bb (patch) | |
tree | 97a8df332d75a674bd79f7c1709eef747c8833f8 | |
parent | 7fcf8ca599f21732a124b8d2610f32a9e4b01c7d (diff) |
Fixed a typo in error message
-rw-r--r-- | system/libraries/Loader.php | 1860 |
1 files changed, 930 insertions, 930 deletions
diff --git a/system/libraries/Loader.php b/system/libraries/Loader.php index 38d7c35a8..d11630712 100644 --- a/system/libraries/Loader.php +++ b/system/libraries/Loader.php @@ -1,931 +1,931 @@ -<?php if (!defined('BASEPATH')) exit('No direct script access allowed'); -/** - * Code Igniter - * - * An open source application development framework for PHP 4.3.2 or newer - * - * @package CodeIgniter - * @author Rick Ellis - * @copyright Copyright (c) 2006, pMachine, Inc. - * @license http://www.codeignitor.com/user_guide/license.html - * @link http://www.codeigniter.com - * @since Version 1.0 - * @filesource - */ - -// ------------------------------------------------------------------------ - -/** - * Loader Class - * - * Loads views and files - * - * @package CodeIgniter - * @subpackage Libraries - * @author Rick Ellis - * @category Loader - * @link http://www.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_models = array(); - var $_ci_helpers = array(); - var $_ci_plugins = array(); - var $_ci_scripts = 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/'; - $this->_ci_ob_level = ob_get_level(); - - log_message('debug', "Loader Class Initialized"); - } - - // -------------------------------------------------------------------- - - /** - * Class Loader - * - * This function lets users load and instantiate classes. - * It is designed to be called from a user's app controllers. - * - * @access public - * @param string the name of the class - * @param mixed the optional parameters - * @return void - */ - function library($library = '', $params = NULL) - { - if ($library == '') - { - return FALSE; - } - - if (is_array($library)) - { - foreach ($library as $class) - { - $this->_ci_load_class($class, $params); - } - } - else - { - $this->_ci_load_class($library, $params); - } - - $this->_ci_assign_to_models(); - } - - // -------------------------------------------------------------------- - - /** - * Model Loader - * - * This function lets users load and instantiate models. - * - * @access public - * @param string the name of the class - * @param mixed any initialization parameters - * @return void - */ - function model($model, $name = '', $db_conn = FALSE) - { - if ($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')) - { - require_once(BASEPATH.'libraries/Model'.EXT); - } - - 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) - { - // Do we even need to load the database class? - if (class_exists('CI_DB') AND $return == FALSE AND $active_record == FALSE) - { - return FALSE; - } - - require_once(BASEPATH.'database/DB'.EXT); - - if ($return === TRUE) - { - return DB($params, $active_record); - } - - // Grab the super object - $CI =& get_instance(); - - // 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(); - } - - $CI =& get_instance(); - - require_once(BASEPATH.'database/DB_utility'.EXT); - require_once(BASEPATH.'database/drivers/'.$CI->db->dbdriver.'/'.$CI->db->dbdriver.'_utility'.EXT); - $class = 'CI_DB_'.$CI->db->dbdriver.'_utility'; - - $CI->dbutil = new $class(); - $CI->load->_ci_assign_to_models(); - } - - // -------------------------------------------------------------------- - - /** - * Load View - * - * This function is used to load a "view" file. It has three parameters: - * - * 1. The name of the "view" file to be included. - * 2. An associative array of data to be extracted for use in the view. - * 3. TRUE/FALSE - whether to return the data or load it. In - * some cases it's advantageous to be able to return data so that - * a developer can process it in some way. - * - * @access public - * @param string - * @param array - * @param bool - * @return void - */ - function view($view, $vars = array(), $return = FALSE) - { - return $this->_ci_load(array('view' => $view, 'vars' => $this->_ci_object_to_array($vars), '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('path' => $path, '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()) - { - $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[$helper])) - { - continue; - } - - if (file_exists(APPPATH.'helpers/'.$helper.EXT)) - { - include_once(APPPATH.'helpers/'.$helper.EXT); - } - else - { - if (file_exists(BASEPATH.'helpers/'.$helper.EXT)) - { - include(BASEPATH.'helpers/'.$helper.EXT); - } - else - { - show_error('Unable to load the requested file: helpers/'.$helper.EXT); - } - } - - $this->_ci_helpers[$helper] = TRUE; - - } - - log_message('debug', 'Helpers loaded: '.implode(', ', $helpers)); - } - - // -------------------------------------------------------------------- - - /** - * Load Helpers - * - * This is simply an alias to the above function in case the - * user has written the plural form of this function. - * - * @access public - * @param array - * @return void - */ - function helpers($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('_plugin.', '', $plugin)).'_pi'); - - if (isset($this->_ci_plugins[$plugin])) - { - continue; - } - - if (file_exists(APPPATH.'plugins/'.$plugin.EXT)) - { - include(APPPATH.'plugins/'.$plugin.EXT); - } - else - { - if (file_exists(BASEPATH.'plugins/'.$plugin.EXT)) - { - include(BASEPATH.'plugins/'.$plugin.EXT); - } - else - { - show_error('Unable to load the requested file: plugins/'.$plugin.EXT); - } - } - - $this->_ci_plugins[$plugin] = TRUE; - } - - log_message('debug', 'Plugins loaded: '.implode(', ', $plugins)); - } - - // -------------------------------------------------------------------- - - /** - * Load Plugins - * - * This is simply an alias to the above function in case the - * user has written the plural form of this function. - * - * @access public - * @param array - * @return void - */ - function plugins($plugins = array()) - { - $this->plugin($plugins); - } - - // -------------------------------------------------------------------- - - /** - * Load Script - * - * This function loads the specified include file from the - * application/scripts/ folder. - * - * NOTE: This feature has been deprecated but it will remain available - * for legacy users. - * - * @access public - * @param array - * @return void - */ - function script($scripts = array()) - { - if ( ! is_array($scripts)) - { - $scripts = array($scripts); - } - - foreach ($scripts as $script) - { - $script = strtolower(str_replace(EXT, '', $script)); - - if (isset($this->_ci_scripts[$script])) - { - continue; - } - - if ( ! file_exists(APPPATH.'scripts/'.$script.EXT)) - { - show_error('Unable to load the requested script: scripts/'.$script.EXT); - } - - include(APPPATH.'scripts/'.$script.EXT); - } - - log_message('debug', 'Scripts loaded: '.implode(', ', $scripts)); - } - - // -------------------------------------------------------------------- - - /** - * Loads a language file - * - * @access public - * @param string - * @return void - */ - function language($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 access when you initialize scaffolding'); - } - - $CI =& get_instance(); - $CI->_ci_scaffolding = TRUE; - $CI->_ci_scaff_table = $table; - } - - // -------------------------------------------------------------------- - - /** - * Loader - * - * This function is used to load views and files. - * - * @access private - * @param array - * @return void - */ - function _ci_load($data) - { - // Set the default data variables - foreach (array('view', 'vars', 'path', 'return') as $val) - { - $$val = ( ! isset($data[$val])) ? FALSE : $data[$val]; - } - - // Set the path to the requested file - if ($path == '') - { - $ext = pathinfo($view, PATHINFO_EXTENSION); - $file = ($ext == '') ? $view.EXT : $view; - $path = $this->_ci_view_path.$file; - } - else - { - $x = explode('/', $path); - $file = end($x); - } - - if ( ! file_exists($path)) - { - show_error('Unable to load the requested file: '.$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 =& get_instance(); - foreach (get_object_vars($CI) as $key => $var) - { - if ( ! isset($this->$key)) - { - $this->$key =& $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($vars)) - { - $this->_ci_cached_vars = array_merge($this->_ci_cached_vars, $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($path))).'<?php '); - } - else - { - include($path); - } - - log_message('debug', 'File loaded: '.$path); - - // Return the file data if requested - if ($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->set_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 - * @return void - */ - function _ci_load_class($class, $params = NULL) - { - // Get the class name - $class = str_replace(EXT, '', $class); - - // We'll test for both lowercase and capitalized versions of the file name - foreach (array(ucfirst($class), strtolower($class)) as $class) - { - // Is this a class extension request? - if (file_exists(APPPATH.'libraries/'.config_item('subclass_prefix').$class.EXT)) - { - if ( ! file_exists(BASEPATH.'libraries/'.ucfirst($class).EXT)) - { - log_message('error', "Unable to load the requested class: ".$class); - show_error("Unable to load the requested class: ".$class); - } - - include(BASEPATH.'libraries/'.ucfirst($class).EXT); - include(APPPATH.'libraries/'.config_item('subclass_prefix').$class.EXT); - - return $this->_ci_init_class($class, config_item('subclass_prefix'), $params); - } - - // Lets search for the requested library file and load it. - for ($i = 1; $i < 3; $i++) - { - $path = ($i % 2) ? APPPATH : BASEPATH; - $fp = $path.'libraries/'.$class.EXT; - - // Does the file exist? No? Bummer... - if ( ! file_exists($fp)) - { - continue; - } - - // Safety: Was the class already loaded by a previous call? - if (in_array($fp, $this->_ci_classes)) - { - log_message('debug', $class." class already loaded.Ê Second attempt ignored."); - return; - } - - include($fp); - $this->_ci_classes[] = $fp; - return $this->_ci_init_class($class, '', $params); - } - } // END FOREACH - - // 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 - * @return null - */ - function _ci_init_class($class, $prefix = '', $config = FALSE) - { - // Is there an associated config file for this class? - if ($config === NULL) - { - $config = NULL; - if (file_exists(APPPATH.'config/'.$class.EXT)) - { - include(APPPATH.'config/'.$class.EXT); - } - } - - if ($prefix == '') - { - $name = (class_exists('CI_'.$class)) ? 'CI_'.$class : $class; - } - else - { - $name = $prefix.$class; - } - - // Set the variable name we will assign the class to - $class = strtolower($class); - $classvar = ( ! isset($this->_ci_varmap[$class])) ? $class : $this->_ci_varmap[$class]; - - // 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(APPPATH.'config/autoload'.EXT); - - if ( ! isset($autoload)) - { - return FALSE; - } - - // Load any custome config file - if (count($autoload['config']) > 0) - { - $CI =& get_instance(); - foreach ($autoload['config'] as $key => $val) - { - $CI->config->load($val); - } - } - - // Load plugins, helpers, and scripts - foreach (array('helper', 'plugin', 'script') 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 the model class. - if (in_array('model', $autoload['libraries'])) - { - $this->model(); - $autoload['libraries'] = array_diff($autoload['libraries'], array('model')); - } - - // 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); - } - } - } - - // -------------------------------------------------------------------- - - /** - * 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; - } - -} +<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * Code Igniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package CodeIgniter
+ * @author Rick Ellis
+ * @copyright Copyright (c) 2006, pMachine, Inc.
+ * @license http://www.codeignitor.com/user_guide/license.html
+ * @link http://www.codeigniter.com
+ * @since Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Loader Class
+ *
+ * Loads views and files
+ *
+ * @package CodeIgniter
+ * @subpackage Libraries
+ * @author Rick Ellis
+ * @category Loader
+ * @link http://www.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_models = array();
+ var $_ci_helpers = array();
+ var $_ci_plugins = array();
+ var $_ci_scripts = 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
+ * @return void
+ */
+ function library($library = '', $params = NULL)
+ {
+ if ($library == '')
+ {
+ return FALSE;
+ }
+
+ if (is_array($library))
+ {
+ foreach ($library as $class)
+ {
+ $this->_ci_load_class($class, $params);
+ }
+ }
+ else
+ {
+ $this->_ci_load_class($library, $params);
+ }
+
+ $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 mixed any initialization parameters
+ * @return void
+ */
+ function model($model, $name = '', $db_conn = FALSE)
+ {
+ 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'))
+ {
+ require_once(BASEPATH.'libraries/Model'.EXT);
+ }
+
+ 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)
+ {
+ // Do we even need to load the database class?
+ if (class_exists('CI_DB') AND $return == FALSE AND $active_record == FALSE)
+ {
+ return FALSE;
+ }
+
+ require_once(BASEPATH.'database/DB'.EXT);
+
+ if ($return === TRUE)
+ {
+ return DB($params, $active_record);
+ }
+
+ // Grab the super object
+ $CI =& get_instance();
+
+ // 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();
+
+ 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 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('view' => $view, 'vars' => $this->_ci_object_to_array($vars), '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('path' => $path, '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())
+ {
+ $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;
+ }
+
+ if (file_exists(APPPATH.'helpers/'.$helper.EXT))
+ {
+ include_once(APPPATH.'helpers/'.$helper.EXT);
+ }
+ else
+ {
+ if (file_exists(BASEPATH.'helpers/'.$helper.EXT))
+ {
+ include(BASEPATH.'helpers/'.$helper.EXT);
+ }
+ else
+ {
+ show_error('Unable to load the requested file: helpers/'.$helper.EXT);
+ }
+ }
+
+ $this->_ci_helpers[$helper] = TRUE;
+
+ }
+
+ log_message('debug', 'Helpers loaded: '.implode(', ', $helpers));
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * 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('_plugin.', '', $plugin)).'_pi');
+
+ if (isset($this->_ci_plugins[$plugin]))
+ {
+ continue;
+ }
+
+ if (file_exists(APPPATH.'plugins/'.$plugin.EXT))
+ {
+ include(APPPATH.'plugins/'.$plugin.EXT);
+ }
+ else
+ {
+ if (file_exists(BASEPATH.'plugins/'.$plugin.EXT))
+ {
+ include(BASEPATH.'plugins/'.$plugin.EXT);
+ }
+ else
+ {
+ show_error('Unable to load the requested file: plugins/'.$plugin.EXT);
+ }
+ }
+
+ $this->_ci_plugins[$plugin] = TRUE;
+ }
+
+ log_message('debug', 'Plugins loaded: '.implode(', ', $plugins));
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * 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);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Load Script
+ *
+ * This function loads the specified include file from the
+ * application/scripts/ folder.
+ *
+ * NOTE: This feature has been deprecated but it will remain available
+ * for legacy users.
+ *
+ * @access public
+ * @param array
+ * @return void
+ */
+ function script($scripts = array())
+ {
+ if ( ! is_array($scripts))
+ {
+ $scripts = array($scripts);
+ }
+
+ foreach ($scripts as $script)
+ {
+ $script = strtolower(str_replace(EXT, '', $script));
+
+ if (isset($this->_ci_scripts[$script]))
+ {
+ continue;
+ }
+
+ if ( ! file_exists(APPPATH.'scripts/'.$script.EXT))
+ {
+ show_error('Unable to load the requested script: scripts/'.$script.EXT);
+ }
+
+ include(APPPATH.'scripts/'.$script.EXT);
+ }
+
+ log_message('debug', 'Scripts loaded: '.implode(', ', $scripts));
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Loads a language file
+ *
+ * @access public
+ * @param string
+ * @return void
+ */
+ function 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 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.
+ *
+ * @access private
+ * @param array
+ * @return void
+ */
+ function _ci_load($data)
+ {
+ // Set the default data variables
+ foreach (array('view', 'vars', 'path', 'return') as $val)
+ {
+ $$val = ( ! isset($data[$val])) ? FALSE : $data[$val];
+ }
+
+ // Set the path to the requested file
+ if ($path == '')
+ {
+ $ext = pathinfo($view, PATHINFO_EXTENSION);
+ $file = ($ext == '') ? $view.EXT : $view;
+ $path = $this->_ci_view_path.$file;
+ }
+ else
+ {
+ $x = explode('/', $path);
+ $file = end($x);
+ }
+
+ if ( ! file_exists($path))
+ {
+ show_error('Unable to load the requested file: '.$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())
+ {
+ $CI =& get_instance();
+ foreach (get_object_vars($CI) as $key => $var)
+ {
+ if ( ! isset($this->$key))
+ {
+ $this->$key =& $CI->$key;
+ }
+ }
+ }
+
+ /*
+ * Extract and cache variables
+ *
+ * You can either set variables using the dedicated $this->load_vars()
+ * function or via the second parameter of this function. We'll merge
+ * the two types and cache them so that views that are embedded within
+ * other views can have access to these variables.
+ */
+ if (is_array($vars))
+ {
+ $this->_ci_cached_vars = array_merge($this->_ci_cached_vars, $vars);
+ }
+ extract($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($path))).'<?php ');
+ }
+ else
+ {
+ include($path);
+ }
+
+ log_message('debug', 'File loaded: '.$path);
+
+ // Return the file data if requested
+ if ($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;
+ $OUT->set_output(ob_get_contents());
+ @ob_end_clean();
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Load class
+ *
+ * This function loads the requested class.
+ *
+ * @access private
+ * @param string the item that is being loaded
+ * @param mixed any additional parameters
+ * @return void
+ */
+ function _ci_load_class($class, $params = NULL)
+ {
+ // Get the class name
+ $class = str_replace(EXT, '', $class);
+
+ // We'll test for both lowercase and capitalized versions of the file name
+ foreach (array(ucfirst($class), strtolower($class)) as $class)
+ {
+ // Is this a class extension request?
+ if (file_exists(APPPATH.'libraries/'.config_item('subclass_prefix').$class.EXT))
+ {
+ if ( ! file_exists(BASEPATH.'libraries/'.ucfirst($class).EXT))
+ {
+ log_message('error', "Unable to load the requested class: ".$class);
+ show_error("Unable to load the requested class: ".$class);
+ }
+
+ include(BASEPATH.'libraries/'.ucfirst($class).EXT);
+ include(APPPATH.'libraries/'.config_item('subclass_prefix').$class.EXT);
+
+ return $this->_ci_init_class($class, config_item('subclass_prefix'), $params);
+ }
+
+ // Lets search for the requested library file and load it.
+ for ($i = 1; $i < 3; $i++)
+ {
+ $path = ($i % 2) ? APPPATH : BASEPATH;
+ $fp = $path.'libraries/'.$class.EXT;
+
+ // Does the file exist? No? Bummer...
+ if ( ! file_exists($fp))
+ {
+ continue;
+ }
+
+ // Safety: Was the class already loaded by a previous call?
+ if (in_array($fp, $this->_ci_classes))
+ {
+ log_message('debug', $class." class already loaded. Second attempt ignored.");
+ return;
+ }
+
+ include($fp);
+ $this->_ci_classes[] = $fp;
+ return $this->_ci_init_class($class, '', $params);
+ }
+ } // END FOREACH
+
+ // If we got this far we were unable to find the requested class.
+ // We do not issue errors if the load call failed due to a duplicate request
+ if ($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
+ * @return null
+ */
+ function _ci_init_class($class, $prefix = '', $config = FALSE)
+ {
+ // Is there an associated config file for this class?
+ if ($config === NULL)
+ {
+ $config = NULL;
+ if (file_exists(APPPATH.'config/'.$class.EXT))
+ {
+ include(APPPATH.'config/'.$class.EXT);
+ }
+ }
+
+ if ($prefix == '')
+ {
+ $name = (class_exists('CI_'.$class)) ? 'CI_'.$class : $class;
+ }
+ else
+ {
+ $name = $prefix.$class;
+ }
+
+ // Set the variable name we will assign the class to
+ $class = strtolower($class);
+ $classvar = ( ! isset($this->_ci_varmap[$class])) ? $class : $this->_ci_varmap[$class];
+
+ // Instantiate the class
+ $CI =& get_instance();
+ if ($config !== NULL)
+ {
+ $CI->$classvar = new $name($config);
+ }
+ else
+ {
+ $CI->$classvar = new $name;
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Autoloader
+ *
+ * The config/autoload.php file contains an array that permits sub-systems,
+ * libraries, plugins, and helpers to be loaded automatically.
+ *
+ * @access private
+ * @param array
+ * @return void
+ */
+ function _ci_autoloader()
+ {
+ include(APPPATH.'config/autoload'.EXT);
+
+ if ( ! isset($autoload))
+ {
+ return FALSE;
+ }
+
+ // Load any custome config file
+ if (count($autoload['config']) > 0)
+ {
+ $CI =& get_instance();
+ foreach ($autoload['config'] as $key => $val)
+ {
+ $CI->config->load($val);
+ }
+ }
+
+ // Load plugins, helpers, and scripts
+ foreach (array('helper', 'plugin', 'script') 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 the model class.
+ if (in_array('model', $autoload['libraries']))
+ {
+ $this->model();
+ $autoload['libraries'] = array_diff($autoload['libraries'], array('model'));
+ }
+
+ // 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);
+ }
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * 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;
+ }
+
+}
?>
\ No newline at end of file |