diff options
Diffstat (limited to 'system/core/Loader.php')
| -rw-r--r-- | system/core/Loader.php | 310 |
1 files changed, 160 insertions, 150 deletions
diff --git a/system/core/Loader.php b/system/core/Loader.php index 292fdc955..5a2175c2d 100644 --- a/system/core/Loader.php +++ b/system/core/Loader.php @@ -34,7 +34,7 @@ class CI_Loader { var $_ci_library_paths = array(); var $_ci_model_paths = array(); var $_ci_helper_paths = array(); - var $_ci_is_instance = FALSE; // Whether we should use $this or $CI =& get_instance() + var $_ci_is_instance = FALSE; // Whether we should use $this or $CI =& get_instance() var $_base_classes = array(); // Set by the controller class var $_ci_cached_vars = array(); var $_ci_classes = array(); @@ -42,7 +42,7 @@ class CI_Loader { var $_ci_models = array(); var $_ci_helpers = array(); var $_ci_varmap = array('unit_test' => 'unit', 'user_agent' => 'agent'); - + /** * Constructor @@ -52,18 +52,18 @@ class CI_Loader { * @access public */ function CI_Loader() - { + { $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); $this->_ci_model_paths = array(APPPATH); - + log_message('debug', "Loader Class Initialized"); } - + // -------------------------------------------------------------------- - + /** * Class Loader * @@ -75,9 +75,19 @@ class CI_Loader { * @param mixed the optional parameters * @param string an optional object name * @return void - */ + */ function library($library = '', $params = NULL, $object_name = NULL) { + if (is_array($library)) + { + foreach($library as $read) + { + $this->library($read); + } + + return; + } + if ($library == '' OR isset($this->_base_classes[$library])) { return FALSE; @@ -99,12 +109,12 @@ class CI_Loader { { $this->_ci_load_class($library, $params, $object_name); } - + $this->_ci_assign_to_models(); } // -------------------------------------------------------------------- - + /** * Model Loader * @@ -115,14 +125,14 @@ class CI_Loader { * @param string name for the model * @param bool database connection * @return void - */ + */ function model($model, $name = '', $db_conn = FALSE) - { + { if (is_array($model)) { foreach($model as $babe) { - $this->model($babe); + $this->model($babe); } return; } @@ -131,9 +141,9 @@ class CI_Loader { { return; } - + $path = ''; - + // Is the model in a sub-folder? If so, parse out the filename and path. if (($last_slash = strrpos($model, '/')) !== FALSE) { @@ -143,23 +153,23 @@ class CI_Loader { // 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) @@ -177,7 +187,7 @@ class CI_Loader { $CI->load->database($db_conn, FALSE, TRUE); } - if ( ! class_exists('Model')) + if ( ! class_exists('CI_Model')) { load_class('Model', 'core'); } @@ -192,13 +202,13 @@ class CI_Loader { $this->_ci_models[] = $name; return; } - + // couldn't find the model show_error('Unable to locate the model you have specified: '.$model); } - + // -------------------------------------------------------------------- - + /** * Database Loader * @@ -207,57 +217,57 @@ class CI_Loader { * @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 + + // Initialize the db variable. Needed to prevent // reference errors with some configurations $CI->db = ''; - + // Load the DB class - $CI->db =& DB($params, $active_record); - + $CI->db =& DB($params, $active_record); + // Assign the DB object to any existing models $this->_ci_assign_to_models(); } - + // -------------------------------------------------------------------- /** * Load the Utilities Class * * @access public - * @return string - */ + * @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'; @@ -266,35 +276,35 @@ class CI_Loader { $CI->load->_ci_assign_to_models(); } - + // -------------------------------------------------------------------- /** * Load the Database Forge Class * * @access public - * @return string - */ + * @return string + */ function dbforge() { if ( ! class_exists('CI_DB')) { $this->database(); } - + $CI =& get_instance(); - + require_once(BASEPATH.'database/DB_forge'.EXT); require_once(BASEPATH.'database/drivers/'.$CI->db->dbdriver.'/'.$CI->db->dbdriver.'_forge'.EXT); $class = 'CI_DB_'.$CI->db->dbdriver.'_forge'; $CI->dbforge = new $class(); - + $CI->load->_ci_assign_to_models(); } - + // -------------------------------------------------------------------- - + /** * Load View * @@ -316,9 +326,9 @@ class CI_Loader { { return $this->_ci_load(array('_ci_view' => $view, '_ci_vars' => $this->_ci_object_to_array($vars), '_ci_return' => $return)); } - + // -------------------------------------------------------------------- - + /** * Load File * @@ -333,9 +343,9 @@ class CI_Loader { { return $this->_ci_load(array('_ci_path' => $path, '_ci_return' => $return)); } - + // -------------------------------------------------------------------- - + /** * Set Variables * @@ -352,9 +362,9 @@ class CI_Loader { { $vars = array($vars => $val); } - + $vars = $this->_ci_object_to_array($vars); - + if (is_array($vars) AND count($vars) > 0) { foreach ($vars as $key => $val) @@ -363,9 +373,9 @@ class CI_Loader { } } } - + // -------------------------------------------------------------------- - + /** * Load Helper * @@ -376,9 +386,9 @@ class CI_Loader { * @return void */ function helper($helpers = array()) - { + { foreach ($this->_ci_prep_filename($helpers, '_helper') as $helper) - { + { if (isset($this->_ci_helpers[$helper])) { continue; @@ -386,33 +396,33 @@ class CI_Loader { $ext_helper = APPPATH.'helpers/'.config_item('subclass_prefix').$helper.EXT; - // Is this a helper extension request? + // 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: '.$helper); + log_message('debug', 'Helper loaded: '.$helper); break; } } @@ -420,13 +430,13 @@ class CI_Loader { // unable to load the helper if ( ! isset($this->_ci_helpers[$helper])) { - show_error('Unable to load the requested file: helpers/'.$helper.EXT); + show_error('Unable to load the requested file: helpers/'.$helper.EXT); } - } + } } - + // -------------------------------------------------------------------- - + /** * Load Helpers * @@ -441,9 +451,9 @@ class CI_Loader { { $this->helper($helpers); } - + // -------------------------------------------------------------------- - + /** * Loads a language file * @@ -462,13 +472,13 @@ class CI_Loader { } foreach ($file as $langfile) - { + { $CI->lang->load($langfile, $lang); } } - + // -------------------------------------------------------------------- - + /** * Loads a config file * @@ -477,7 +487,7 @@ class CI_Loader { * @return void */ function config($file = '', $use_sections = FALSE, $fail_gracefully = FALSE) - { + { $CI =& get_instance(); $CI->config->load($file, $use_sections, $fail_gracefully); } @@ -501,19 +511,19 @@ class CI_Loader { // we aren't instantiating an object here, that'll be done by the Library itself require BASEPATH.'libraries/Driver'.EXT; } - + // We can save the loader some time since Drivers will *always* be in a subfolder, // and typically identically named to the library if ( ! strpos($library, '/')) { $library = ucfirst($library).'/'.$library; } - + return $this->library($library, $params, $object_name); } // -------------------------------------------------------------------- - + /** * Add Package Path * @@ -528,7 +538,7 @@ class CI_Loader { array_unshift($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, $path); @@ -549,7 +559,7 @@ class CI_Loader { function remove_package_path($path = '', $remove_config_path = TRUE) { $config =& $this->_ci_get_component('config'); - + if ($path == '') { $void = array_shift($this->_ci_library_paths); @@ -566,13 +576,13 @@ class CI_Loader { 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))); @@ -581,7 +591,7 @@ class CI_Loader { } // -------------------------------------------------------------------- - + /** * Loader * @@ -613,16 +623,16 @@ class CI_Loader { $_ci_x = explode('/', $_ci_path); $_ci_file = end($_ci_x); } - + if ( ! file_exists($_ci_path)) { show_error('Unable to load the requested file: '.$_ci_file); } - + // This allows anything loaded using $this->load (views, files, etc.) // to become accessible from within the Controller and Model functions. // Only needed when running PHP 5 - + if ($this->_ci_is_instance()) { $_ci_CI =& get_instance(); @@ -642,13 +652,13 @@ class CI_Loader { * function or via the second parameter of this function. We'll merge * the two types and cache them so that views that are embedded within * other views can have access to these variables. - */ + */ if (is_array($_ci_vars)) { $this->_ci_cached_vars = array_merge($this->_ci_cached_vars, $_ci_vars); } extract($this->_ci_cached_vars); - + /* * Buffer the output * @@ -662,11 +672,11 @@ class CI_Loader { * 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($_ci_path)))); @@ -675,12 +685,12 @@ class CI_Loader { { include($_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; @@ -695,7 +705,7 @@ class CI_Loader { * it can be seen and included properly by the first included * template and any subsequent ones. Oy! * - */ + */ if (ob_get_level() > $this->_ci_ob_level + 1) { ob_end_flush(); @@ -717,18 +727,18 @@ class CI_Loader { * This function loads the requested class. * * @access private - * @param string the item that is being loaded + * @param string the item that is being loaded * @param mixed any additional parameters * @param string an optional object name - * @return void + * @return void */ function _ci_load_class($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, + { + // 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 = ''; @@ -736,7 +746,7 @@ class CI_Loader { { // Extract the path $subdir = substr($class, 0, $last_slash + 1); - + // Get the filename from the path $class = substr($class, $last_slash + 1); } @@ -746,11 +756,11 @@ class CI_Loader { { $subclass = APPPATH.'libraries/'.$subdir.config_item('subclass_prefix').$class.EXT; - // Is this a class extension request? + // Is this a class extension request? if (file_exists($subclass)) { $baseclass = BASEPATH.'libraries/'.ucfirst($class).EXT; - + if ( ! file_exists($baseclass)) { log_message('error', "Unable to load the requested class: ".$class); @@ -768,22 +778,22 @@ class CI_Loader { $CI =& get_instance(); if ( ! isset($CI->$object_name)) { - return $this->_ci_init_class($class, config_item('subclass_prefix'), $params, $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($baseclass); include_once($subclass); $this->_ci_loaded_files[] = $subclass; - - return $this->_ci_init_class($class, config_item('subclass_prefix'), $params, $object_name); + + 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 $path) @@ -795,7 +805,7 @@ class CI_Loader { { continue; } - + // Safety: Was the class already loaded by a previous call? if (in_array($filepath, $this->_ci_loaded_files)) { @@ -810,15 +820,15 @@ class CI_Loader { 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); + return $this->_ci_init_class($class, '', $params, $object_name); } } // END FOREACH @@ -829,7 +839,7 @@ class CI_Loader { $path = strtolower($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) @@ -838,7 +848,7 @@ class CI_Loader { show_error("Unable to load the requested class: ".$class); } } - + // -------------------------------------------------------------------- /** @@ -851,7 +861,7 @@ class CI_Loader { * @return null */ function _ci_init_class($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) { @@ -860,20 +870,20 @@ class CI_Loader { if (file_exists(APPPATH.'config/'.strtolower($class).EXT)) { include_once(APPPATH.'config/'.strtolower($class).EXT); - } + } elseif (file_exists(APPPATH.'config/'.ucfirst(strtolower($class)).EXT)) { include_once(APPPATH.'config/'.ucfirst(strtolower($class)).EXT); } } - + if ($prefix == '') - { - if (class_exists('CI_'.$class)) + { + if (class_exists('CI_'.$class)) { $name = 'CI_'.$class; } - elseif (class_exists(config_item('subclass_prefix').$class)) + elseif (class_exists(config_item('subclass_prefix').$class)) { $name = config_item('subclass_prefix').$class; } @@ -886,18 +896,18 @@ class CI_Loader { { $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]; @@ -907,23 +917,23 @@ class CI_Loader { $classvar = $object_name; } - // Save the class name and object name + // Save the class name and object name $this->_ci_classes[$class] = $classvar; - // Instantiate the class + // Instantiate the class $CI =& get_instance(); if ($config !== NULL) { $CI->$classvar = new $name($config); } else - { + { $CI->$classvar = new $name; - } - } - + } + } + // -------------------------------------------------------------------- - + /** * Autoloader * @@ -935,31 +945,31 @@ class CI_Loader { * @return void */ function _ci_autoloader() - { + { include_once(APPPATH.'config/autoload'.EXT); - + if ( ! isset($autoload)) { return FALSE; } - + // Load any custom config file if (count($autoload['config']) > 0) - { + { $CI =& get_instance(); foreach ($autoload['config'] as $key => $val) { $CI->config->load($val); } - } + } // Autoload 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 @@ -968,7 +978,7 @@ class CI_Loader { { $autoload['libraries'] = $autoload['core']; } - + // Load libraries if (isset($autoload['libraries']) AND count($autoload['libraries']) > 0) { @@ -978,13 +988,13 @@ class CI_Loader { $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($autoload['model'])) @@ -993,7 +1003,7 @@ class CI_Loader { } } - + // -------------------------------------------------------------------- /** @@ -1012,13 +1022,13 @@ class CI_Loader { { return; } - + foreach($this->_ci_models as $model) { $model = $this->_ci_get_component($model); $model->_assign_libraries(); } - } + } // -------------------------------------------------------------------- @@ -1041,7 +1051,7 @@ class CI_Loader { /** * Determines whether we should use the CI instance or $this * @PHP4 - * + * * @access private * @return bool */ @@ -1051,11 +1061,11 @@ class CI_Loader { { return TRUE; } - + global $CI; return (is_object($CI)) ? TRUE : FALSE; } - + // -------------------------------------------------------------------- /** @@ -1078,7 +1088,7 @@ class CI_Loader { } // -------------------------------------------------------------------- - + /** * Prep filename * @@ -1091,20 +1101,20 @@ class CI_Loader { function _ci_prep_filename($filename, $extension) { if ( ! is_array($filename)) - { - return array(strtolower(str_replace(EXT, '', str_replace($extension, '', $filename)).$extension)); + { + 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); + $filename[$key] = strtolower(str_replace(EXT, '', str_replace($extension, '', $val)).$extension); } - + return $filename; } } - + } |