299 lines
8.6 KiB
PHP
299 lines
8.6 KiB
PHP
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<?php
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/**
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* Object class, allowing __construct and __destruct in PHP4.
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*
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* Also includes methods for logging and the special method RequestAction,
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* to call other Controllers' Actions from anywhere.
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*
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* PHP versions 4 and 5
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @package cake
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* @subpackage cake.cake.libs
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* @since CakePHP(tm) v 0.2.9
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* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
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*/
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/**
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* Object class, allowing __construct and __destruct in PHP4.
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*
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* Also includes methods for logging and the special method RequestAction,
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* to call other Controllers' Actions from anywhere.
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*
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* @package cake
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* @subpackage cake.cake.libs
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*/
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class Object {
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/**
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* A hack to support __construct() on PHP 4
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* Hint: descendant classes have no PHP4 class_name() constructors,
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* so this constructor gets called first and calls the top-layer __construct()
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* which (if present) should call parent::__construct()
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*
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* @return Object
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*/
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function Object() {
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$args = func_get_args();
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if (method_exists($this, '__destruct')) {
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register_shutdown_function (array(&$this, '__destruct'));
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}
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call_user_func_array(array(&$this, '__construct'), $args);
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}
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/**
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* Class constructor, overridden in descendant classes.
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*/
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function __construct() {
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}
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/**
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* Object-to-string conversion.
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* Each class can override this method as necessary.
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*
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* @return string The name of this class
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* @access public
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*/
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function toString() {
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$class = get_class($this);
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return $class;
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}
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/**
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* Calls a controller's method from any location. Can be used to connect controllers together
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* or tie plugins into a main application. requestAction can be used to return rendered views
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* or fetch the return value from controller actions.
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*
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* @param mixed $url String or array-based url.
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* @param array $extra if array includes the key "return" it sets the AutoRender to true.
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* @return mixed Boolean true or false on success/failure, or contents
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* of rendered action if 'return' is set in $extra.
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* @access public
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*/
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function requestAction($url, $extra = array()) {
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if (empty($url)) {
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return false;
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}
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if (!class_exists('dispatcher')) {
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require CAKE . 'dispatcher.php';
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}
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if (in_array('return', $extra, true)) {
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$extra = array_merge($extra, array('return' => 0, 'autoRender' => 1));
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}
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if (is_array($url) && !isset($extra['url'])) {
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$extra['url'] = array();
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}
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$params = array_merge(array('autoRender' => 0, 'return' => 1, 'bare' => 1, 'requested' => 1), $extra);
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$dispatcher = new Dispatcher;
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return $dispatcher->dispatch($url, $params);
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}
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/**
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* Calls a method on this object with the given parameters. Provides an OO wrapper
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* for `call_user_func_array`
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*
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* @param string $method Name of the method to call
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* @param array $params Parameter list to use when calling $method
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* @return mixed Returns the result of the method call
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* @access public
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*/
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function dispatchMethod($method, $params = array()) {
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switch (count($params)) {
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case 0:
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return $this->{$method}();
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case 1:
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return $this->{$method}($params[0]);
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case 2:
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return $this->{$method}($params[0], $params[1]);
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case 3:
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return $this->{$method}($params[0], $params[1], $params[2]);
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case 4:
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return $this->{$method}($params[0], $params[1], $params[2], $params[3]);
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case 5:
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return $this->{$method}($params[0], $params[1], $params[2], $params[3], $params[4]);
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default:
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return call_user_func_array(array(&$this, $method), $params);
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break;
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}
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}
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/**
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* Stop execution of the current script. Wraps exit() making
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* testing easier.
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*
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* @param $status see http://php.net/exit for values
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* @return void
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* @access public
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*/
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function _stop($status = 0) {
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exit($status);
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}
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/**
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* Convience method to write a message to CakeLog. See CakeLog::write()
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* for more information on writing to logs.
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*
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* @param string $msg Log message
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* @param integer $type Error type constant. Defined in app/config/core.php.
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* @return boolean Success of log write
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* @access public
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*/
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function log($msg, $type = LOG_ERROR) {
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if (!class_exists('CakeLog')) {
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require LIBS . 'cake_log.php';
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}
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if (!is_string($msg)) {
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$msg = print_r($msg, true);
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}
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return CakeLog::write($type, $msg);
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}
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/**
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* Allows setting of multiple properties of the object in a single line of code. Will only set
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* properties that are part of a class declaration.
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*
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* @param array $properties An associative array containing properties and corresponding values.
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* @return void
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* @access protected
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*/
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function _set($properties = array()) {
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if (is_array($properties) && !empty($properties)) {
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$vars = get_object_vars($this);
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foreach ($properties as $key => $val) {
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if (array_key_exists($key, $vars)) {
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$this->{$key} = $val;
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}
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}
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}
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}
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/**
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* Used to report user friendly errors.
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* If there is a file app/error.php or app/app_error.php this file will be loaded
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* error.php is the AppError class it should extend ErrorHandler class.
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*
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* @param string $method Method to be called in the error class (AppError or ErrorHandler classes)
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* @param array $messages Message that is to be displayed by the error class
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* @return error message
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* @access public
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*/
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function cakeError($method, $messages = array()) {
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if (!class_exists('ErrorHandler')) {
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App::import('Core', 'Error');
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if (file_exists(APP . 'error.php')) {
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include_once (APP . 'error.php');
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} elseif (file_exists(APP . 'app_error.php')) {
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include_once (APP . 'app_error.php');
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}
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}
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if (class_exists('AppError')) {
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$error = new AppError($method, $messages);
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} else {
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$error = new ErrorHandler($method, $messages);
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}
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return $error;
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}
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/**
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* Checks for a persistent class file, if found file is opened and true returned
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* If file is not found a file is created and false returned
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* If used in other locations of the model you should choose a unique name for the persistent file
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* There are many uses for this method, see manual for examples
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*
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* @param string $name name of the class to persist
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* @param string $object the object to persist
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* @return boolean Success
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* @access protected
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* @todo add examples to manual
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*/
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function _persist($name, $return = null, &$object, $type = null) {
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$file = CACHE . 'persistent' . DS . strtolower($name) . '.php';
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if ($return === null) {
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if (!file_exists($file)) {
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return false;
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} else {
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return true;
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}
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}
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if (!file_exists($file)) {
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$this->_savePersistent($name, $object);
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return false;
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} else {
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$this->__openPersistent($name, $type);
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return true;
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}
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}
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/**
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* You should choose a unique name for the persistent file
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*
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* There are many uses for this method, see manual for examples
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*
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* @param string $name name used for object to cache
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* @param object $object the object to persist
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* @return boolean true on save, throws error if file can not be created
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* @access protected
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*/
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function _savePersistent($name, &$object) {
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$file = 'persistent' . DS . strtolower($name) . '.php';
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$objectArray = array(&$object);
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$data = str_replace('\\', '\\\\', serialize($objectArray));
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$data = '<?php $' . $name . ' = \'' . str_replace('\'', '\\\'', $data) . '\' ?>';
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$duration = '+999 days';
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if (Configure::read() >= 1) {
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$duration = '+10 seconds';
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}
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cache($file, $data, $duration);
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}
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/**
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* Open the persistent class file for reading
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* Used by Object::_persist()
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*
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* @param string $name Name of persisted class
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* @param string $type Type of persistance (e.g: registry)
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* @return void
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* @access private
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*/
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function __openPersistent($name, $type = null) {
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$file = CACHE . 'persistent' . DS . strtolower($name) . '.php';
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include($file);
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switch ($type) {
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case 'registry':
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$vars = unserialize(${$name});
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foreach ($vars['0'] as $key => $value) {
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if (strpos($key, '_behavior') !== false) {
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App::import('Behavior', Inflector::classify(substr($key, 0, -9)));
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} else {
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App::import('Model', Inflector::camelize($key));
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}
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unset ($value);
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}
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unset($vars);
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$vars = unserialize(${$name});
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foreach ($vars['0'] as $key => $value) {
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ClassRegistry::addObject($key, $value);
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unset ($value);
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}
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unset($vars);
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break;
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default:
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$vars = unserialize(${$name});
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$this->{$name} = $vars['0'];
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unset($vars);
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break;
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}
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}
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}
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