Subversion-Projekte lars-tiefland.cakephp

<?php

/* SVN FILE: $Id: controller.php 7945 2008-12-19 02:16:01Z gwoo $ */

/**

 * Base controller class.

 *

 * PHP versions 4 and 5

 *

 * CakePHP(tm) :  Rapid Development Framework (http://www.cakephp.org)

 * Copyright 2005-2008, Cake Software Foundation, Inc. (http://www.cakefoundation.org)

 *

 * Licensed under The MIT License

 * Redistributions of files must retain the above copyright notice.

 *

 * @filesource

 * @copyright     Copyright 2005-2008, Cake Software Foundation, Inc. (http://www.cakefoundation.org)

 * @link          http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project

 * @package       cake

 * @subpackage    cake.cake.libs.controller

 * @since         CakePHP(tm) v 0.2.9

 * @version       $Revision: 7945 $

 * @modifiedby    $LastChangedBy: gwoo $

 * @lastmodified  $Date: 2008-12-18 18:16:01 -0800 (Thu, 18 Dec 2008) $

 * @license       http://www.opensource.org/licenses/mit-license.php The MIT License

 */

/**

 * Include files

 */

App::import('Core', array('Component', 'View'));

/**

 * Controller

 *

 * Application controller class for organization of business logic.

 * Provides basic functionality, such as rendering views inside layouts,

 * automatic model availability, redirection, callbacks, and more.

 *

 * @package       cake

 * @subpackage    cake.cake.libs.controller

 * @link          http://book.cakephp.org/view/49/Controllers

 *

 */

class Controller extends Object {

/**

 * The name of this controller. Controller names are plural, named after the model they manipulate.

 *

 * @var string

 * @access public

 * @link http://book.cakephp.org/view/52/name

 */

	var $name = null;

/**

 * Stores the current URL, relative to the webroot of the application.

 *

 * @var string

 * @access public

 */

	var $here = null;

/**

 * The webroot of the application. Helpful if your application is placed in a folder under the current domain name.

 *

 * @var string

 * @access public

 */

	var $webroot = null;

/**

 * The name of the currently requested controller action.

 *

 * @var string

 * @access public

 */

	var $action = null;

/**

 * An array containing the class names of models this controller uses.

 *

 * Example: var $uses = array('Product', 'Post', 'Comment');

 *

 * @var mixed A single name as a string or a list of names as an array.

 * @access protected

 * @link http://book.cakephp.org/view/53/components-helpers-and-uses

 */

	var $uses = false;

/**

 * An array containing the names of helpers this controller uses. The array elements should

 * not contain the "Helper" part of the classname.

 *

 * Example: var $helpers = array('Html', 'Javascript', 'Time', 'Ajax');

 *

 * @var mixed A single name as a string or a list of names as an array.

 * @access protected

 * @link http://book.cakephp.org/view/53/components-helpers-and-uses

 */

	var $helpers = array('Html', 'Form');

/**

 * Parameters received in the current request: GET and POST data, information

 * about the request, etc.

 *

 * @var array

 * @access public

 * @link http://book.cakephp.org/view/55/The-Parameters-Attribute-params

 */

	var $params = array();

/**

 * Data POSTed to the controller using the HtmlHelper. Data here is accessible

 * using the $this->data['ModelName']['fieldName'] pattern.

 *

 * @var array

 * @access public

 */

	var $data = array();

/**

 * Holds pagination defaults for controller actions. The keys that can be included

 * in this array are: 'conditions', 'fields', 'order', 'limit', 'page', and 'recursive',

 * similar to the keys in the second parameter of Model::find().

 *

 * Pagination defaults can also be supplied in a model-by-model basis by using

 * the name of the model as a key for a pagination array:

 *

 * var $paginate = array(

 * 		'Post' => array(...),

 * 		'Comment' => array(...)

 * 	);

 *

 * @var array

 * @access public

 * @link http://book.cakephp.org/view/164/Pagination

 */

	var $paginate = array('limit' => 20, 'page' => 1);

/**

 * The name of the views subfolder containing views for this controller.

 *

 * @var string

 * @access public

 */

	var $viewPath = null;

/**

 * The name of the layouts subfolder containing layouts for this controller.

 *

 * @var string

 * @access public

 */

	var $layoutPath = null;

/**

 * Contains variables to be handed to the view.

 *

 * @var array

 * @access public

 */

	var $viewVars = array();

/**

 * Text to be used for the $title_for_layout layout variable (usually

 * placed inside <title> tags.)

 *

 * @var boolean

 * @access public

 * @link http://book.cakephp.org/view/54/Page-related-Attributes-layout-and-pageTitle

 */

	var $pageTitle = false;

/**

 * An array containing the class names of the models this controller uses.

 *

 * @var array Array of model objects.

 * @access public

 */

	var $modelNames = array();

/**

 * Base URL path.

 *

 * @var string

 * @access public

 */

	var $base = null;

/**

 * The name of the layout file to render the view inside of. The name specified

 * is the filename of the layout in /app/views/layouts without the .ctp

 * extension.

 *

 * @var string

 * @access public

 * @link http://book.cakephp.org/view/54/Page-related-Attributes-layout-and-pageTitle

 */

	var $layout = 'default';

/**

 * Set to true to automatically render the view

 * after action logic.

 *

 * @var boolean

 * @access public

 */

	var $autoRender = true;

/**

 * Set to true to automatically render the layout around views.

 *

 * @var boolean

 * @access public

 */

	var $autoLayout = true;

/**

 * Instance of Component used to handle callbacks.

 *

 * @var string

 * @access public

 */

	var $Component = null;

/**

 * Array containing the names of components this controller uses. Component names

 * should not contain the "Component" portion of the classname.

 *

 * Example: var $components = array('Session', 'RequestHandler', 'Acl');

 *

 * @var array

 * @access public

 * @link http://book.cakephp.org/view/53/components-helpers-and-uses

 */

	var $components = array();

/**

 * The name of the View class this controller sends output to.

 *

 * @var string

 * @access public

 */

	var $view = 'View';

/**

 * File extension for view templates. Defaults to Cake's conventional ".ctp".

 *

 * @var string

 * @access public

 */

	var $ext = '.ctp';

/**

 * The output of the requested action.  Contains either a variable

 * returned from the action, or the data of the rendered view;

 * You can use this var in child controllers' afterFilter() callbacks to alter output.

 *

 * @var string

 * @access public

 */

	var $output = null;

/**

 * Automatically set to the name of a plugin.

 *

 * @var string

 * @access public

 */

	var $plugin = null;

/**

 * Used to define methods a controller that will be cached. To cache a

 * single action, the value is set to an array containing keys that match

 * action names and values that denote cache expiration times (in seconds).

 *

 * Example: var $cacheAction = array(

 *		'view/23/' => 21600,

 *		'recalled/' => 86400

 *	);

 *

 * $cacheAction can also be set to a strtotime() compatible string. This

 * marks all the actions in the controller for view caching.

 *

 * @var mixed

 * @access public

 * @link http://book.cakephp.org/view/346/Caching-in-the-Controller

 */

	var $cacheAction = false;

/**

 * Used to create cached instances of models a controller uses.

 * When set to true, all models related to the controller will be cached.

 * This can increase performance in many cases.

 *

 * @var boolean

 * @access public

 */

	var $persistModel = false;

/**

 * Holds all params passed and named.

 *

 * @var mixed

 * @access public

 */

	var $passedArgs = array();

/**

 * Triggers Scaffolding

 *

 * @var mixed

 * @access public

 * @link http://book.cakephp.org/view/105/Scaffolding

 */

	var $scaffold = false;

/**

 * Holds current methods of the controller

 *

 * @var array

 * @access public

 * @link

 */

	var $methods = array();

/**

 * Constructor.

 *

 */

	function __construct() {

		if ($this->name === null) {

			$r = null;

			if (!preg_match('/(.*)Controller/i', get_class($this), $r)) {

				die (__("Controller::__construct() : Can not get or parse my own class name, exiting."));

			}

			$this->name = $r[1];

		}

		if ($this->viewPath == null) {

			$this->viewPath = Inflector::underscore($this->name);

		}

		$this->modelClass = Inflector::classify($this->name);

		$this->modelKey = Inflector::underscore($this->modelClass);

		$this->Component =& new Component();

		$childMethods = get_class_methods($this);

		$parentMethods = get_class_methods('Controller');

		foreach ($childMethods as $key => $value) {

			$childMethods[$key] = strtolower($value);

		}

		foreach ($parentMethods as $key => $value) {

			$parentMethods[$key] = strtolower($value);

		}

		$this->methods = array_diff($childMethods, $parentMethods);

		parent::__construct();

	}

/**

 * Merge components, helpers, and uses vars from AppController and PluginAppController.

 *

 * @return void

 * @access protected

 */

	function __mergeVars() {

		$pluginName = Inflector::camelize($this->plugin);

		$pluginController = $pluginName . 'AppController';

		if (is_subclass_of($this, 'AppController') || is_subclass_of($this, $pluginController)) {

			$appVars = get_class_vars('AppController');

			$uses = $appVars['uses'];

			$merge = array('components', 'helpers');

			$plugin = null;

			if (!empty($this->plugin)) {

				$plugin = $pluginName . '.';

				if (!is_subclass_of($this, $pluginController)) {

					$pluginController = null;

				}

			} else {

				$pluginController = null;

			}

			if ($uses == $this->uses && !empty($this->uses)) {

				if (!in_array($plugin . $this->modelClass, $this->uses)) {

					array_unshift($this->uses, $plugin . $this->modelClass);

				} elseif ($this->uses[0] !== $plugin . $this->modelClass) {

					$this->uses = array_flip($this->uses);

					unset($this->uses[$plugin . $this->modelClass]);

					$this->uses = array_flip($this->uses);

					array_unshift($this->uses, $plugin . $this->modelClass);

				}

			} elseif ($this->uses !== null || $this->uses !== false) {

				$merge[] = 'uses';

			}

			foreach ($merge as $var) {

				if (isset($appVars[$var]) && !empty($appVars[$var]) && is_array($this->{$var})) {

					if ($var === 'components') {

						$normal = Set::normalize($this->{$var});

						$app = Set::normalize($appVars[$var]);

						$this->{$var} = Set::merge($normal, $app);

					} else {

						$this->{$var} = Set::merge($this->{$var}, array_diff($appVars[$var], $this->{$var}));

					}

				}

			}

		}

		if ($pluginController) {

			$appVars = get_class_vars($pluginController);

			$uses = $appVars['uses'];

			$merge = array('components', 'helpers');

			if ($this->uses !== null || $this->uses !== false) {

				$merge[] = 'uses';

			}

			foreach ($merge as $var) {

				if (isset($appVars[$var]) && !empty($appVars[$var]) && is_array($this->{$var})) {

					if ($var === 'components') {

						$normal = Set::normalize($this->{$var});

						$app = Set::normalize($appVars[$var]);

						$this->{$var} = Set::merge($normal, array_diff_assoc($app, $normal));

					} else {

						$this->{$var} = Set::merge($this->{$var}, array_diff($appVars[$var], $this->{$var}));

					}

				}

			}

		}

	}

/**

 * Loads Model classes based on the the uses property

 * see Controller::loadModel(); for more info.

 * Loads Components and prepares them for initialization.

 *

 * @return mixed true if models found and instance created, or cakeError if models not found.

 * @access public

 * @see Controller::loadModel()

 * @link http://book.cakephp.org/view/429/constructClasses

 */

	function constructClasses() {

		$this->__mergeVars();

		$this->Component->init($this);

		if ($this->uses !== null || ($this->uses !== array())) {

			if (empty($this->passedArgs) || !isset($this->passedArgs['0'])) {

				$id = false;

			} else {

				$id = $this->passedArgs['0'];

			}

			if ($this->uses === false) {

				$this->loadModel($this->modelClass, $id);

			} elseif ($this->uses) {

				$uses = is_array($this->uses) ? $this->uses : array($this->uses);

				$modelClassName = $uses[0];

				if (strpos($uses[0], '.') !== false) {

					list($plugin, $modelClassName) = explode('.', $uses[0]);

				}

				$this->modelClass = $modelClassName;

				foreach ($uses as $modelClass) {

					$this->loadModel($modelClass);

				}

			}

		}

		return true;

	}

/**

 * Loads and instantiates models required by this controller.

 * If Controller::persistModel; is true, controller will create cached model instances on first request,

 * additional request will used cached models.

 * If the model is non existent, it will throw a missing database table error, as Cake generates

 * dynamic models for the time being.

 *

 * @param string $modelClass Name of model class to load

 * @param mixed $id Initial ID the instanced model class should have

 * @return mixed true when single model found and instance created error returned if models not found.

 * @access public

 */

	function loadModel($modelClass = null, $id = null) {

		if ($modelClass === null) {

			$modelClass = $this->modelClass;

		}

		$cached = false;

		$object = null;

		$plugin = null;

		if ($this->uses === false) {

			if ($this->plugin) {

				$plugin = $this->plugin . '.';

			}

		}

		if (strpos($modelClass, '.') !== false) {

			list($plugin, $modelClass) = explode('.', $modelClass);

			$plugin = $plugin . '.';

		}

		if ($this->persistModel === true) {

			$cached = $this->_persist($modelClass, null, $object);

		}

		if (($cached === false)) {

			$this->modelNames[] = $modelClass;

			if (!PHP5) {

				$this->{$modelClass} =& ClassRegistry::init(array('class' => $plugin . $modelClass, 'alias' => $modelClass, 'id' => $id));

			} else {

				$this->{$modelClass} = ClassRegistry::init(array('class' => $plugin . $modelClass, 'alias' => $modelClass, 'id' => $id));

			}

			if (!$this->{$modelClass}) {

				return $this->cakeError('missingModel', array(array('className' => $modelClass, 'webroot' => '', 'base' => $this->base)));

			}

			if ($this->persistModel === true) {

				$this->_persist($modelClass, true, $this->{$modelClass});

				$registry = ClassRegistry::getInstance();

				$this->_persist($modelClass . 'registry', true, $registry->__objects, 'registry');

			}

		} else {

			$this->_persist($modelClass . 'registry', true, $object, 'registry');

			$this->_persist($modelClass, true, $object);

			$this->modelNames[] = $modelClass;

		}

	}

/**

 * Redirects to given $url, after turning off $this->autoRender.

 * Script execution is halted after the redirect.

 *

 * @param mixed $url A string or array-based URL pointing to another location within the app, or an absolute URL

 * @param integer $status Optional HTTP status code (eg: 404)

 * @param boolean $exit If true, exit() will be called after the redirect

 * @return mixed void if $exit = false. Terminates script if $exit = true

 * @access public

 * @link http://book.cakephp.org/view/425/redirect

 */

	function redirect($url, $status = null, $exit = true) {

		$this->autoRender = false;

		if (is_array($status)) {

			extract($status, EXTR_OVERWRITE);

		}

		$response = $this->Component->beforeRedirect($this, $url, $status, $exit);

		if ($response === false) {

			return;

		}

		if (is_array($response)) {

			foreach ($response as $resp) {

				if (is_array($resp) && isset($resp['url'])) {

					extract($resp, EXTR_OVERWRITE);

				} elseif ($resp !== null) {

					$url = $resp;

				}

			}

		}

		if (function_exists('session_write_close')) {

			session_write_close();

		}

		if (!empty($status)) {

			$codes = array(

				100 => 'Continue',

				101 => 'Switching Protocols',

				200 => 'OK',

				201 => 'Created',

				202 => 'Accepted',

				203 => 'Non-Authoritative Information',

				204 => 'No Content',

				205 => 'Reset Content',

				206 => 'Partial Content',

				300 => 'Multiple Choices',

				301 => 'Moved Permanently',

				302 => 'Found',

				303 => 'See Other',

				304 => 'Not Modified',

				305 => 'Use Proxy',

				307 => 'Temporary Redirect',

				400 => 'Bad Request',

				401 => 'Unauthorized',

				402 => 'Payment Required',

				403 => 'Forbidden',

				404 => 'Not Found',

				405 => 'Method Not Allowed',

				406 => 'Not Acceptable',

				407 => 'Proxy Authentication Required',

				408 => 'Request Time-out',

				409 => 'Conflict',

				410 => 'Gone',

				411 => 'Length Required',

				412 => 'Precondition Failed',

				413 => 'Request Entity Too Large',

				414 => 'Request-URI Too Large',

				415 => 'Unsupported Media Type',

				416 => 'Requested range not satisfiable',

				417 => 'Expectation Failed',

				500 => 'Internal Server Error',

				501 => 'Not Implemented',

				502 => 'Bad Gateway',

				503 => 'Service Unavailable',

				504 => 'Gateway Time-out'

			);

			if (is_string($status)) {

				$codes = array_combine(array_values($codes), array_keys($codes));

			}

			if (isset($codes[$status])) {

				$code = $msg = $codes[$status];

				if (is_numeric($status)) {

					$code = $status;

				}

				if (is_string($status)) {

					$msg = $status;

				}

				$status = "HTTP/1.1 {$code} {$msg}";

			} else {

				$status = null;

			}

		}

		if (!empty($status)) {

			$this->header($status);

		}

		if ($url !== null) {

			$this->header('Location: ' . Router::url($url, true));

		}

		if (!empty($status) && ($status >= 300 && $status < 400)) {

			$this->header($status);

		}

		if ($exit) {

			$this->_stop();

		}

	}

/**

 * Convenience method for header()

 *

 * @param string $status

 * @return void

 * @access public

 */

	function header($status) {

		header($status);

	}

/**

 * Saves a variable for use inside a view template.

 *

 * @param mixed $one A string or an array of data.

 * @param mixed $two Value in case $one is a string (which then works as the key).

 * 				Unused if $one is an associative array, otherwise serves as the values to $one's keys.

 * @return void

 * @access public

 * @link http://book.cakephp.org/view/427/set

 */

	function set($one, $two = null) {

		$data = array();

		if (is_array($one)) {

			if (is_array($two)) {

				$data = array_combine($one, $two);

			} else {

				$data = $one;

			}

		} else {

			$data = array($one => $two);

		}

		foreach ($data as $name => $value) {

			if ($name === 'title') {

				$this->pageTitle = $value;

			} else {

				if ($two === null && is_array($one)) {

					$this->viewVars[Inflector::variable($name)] = $value;

				} else {

					$this->viewVars[$name] = $value;

				}

			}

		}

	}

/**

 * Internally redirects one action to another. Examples:

 *

 * setAction('another_action');

 * setAction('action_with_parameters', $parameter1);

 *

 * @param string $action The new action to be redirected to

 * @param mixed  Any other parameters passed to this method will be passed as

 *               parameters to the new action.

 * @return mixed Returns the return value of the called action

 * @access public

 */

	function setAction($action) {

		$this->action = $action;

		$args = func_get_args();

		unset($args[0]);

		return call_user_func_array(array(&$this, $action), $args);

	}

/**

 * Controller callback to tie into Auth component. Only called when AuthComponent::authorize is set to 'controller'.

 *

 * @return bool true if authorized, false otherwise

 * @access public

 * @link http://book.cakephp.org/view/396/authorize

 */

	function isAuthorized() {

		trigger_error(sprintf(__('%s::isAuthorized() is not defined.', true), $this->name), E_USER_WARNING);

		return false;

	}

/**

 * Returns number of errors in a submitted FORM.

 *

 * @return integer Number of errors

 * @access public

 */

	function validate() {

		$args = func_get_args();

		$errors = call_user_func_array(array(&$this, 'validateErrors'), $args);

		if ($errors === false) {

			return 0;

		}

		return count($errors);

	}

/**

 * Validates models passed by parameters. Example:

 *

 * $errors = $this->validateErrors($this->Article, $this->User);

 *

 * @param mixed A list of models as a variable argument

 * @return array Validation errors, or false if none

 * @access public

 */

	function validateErrors() {

		$objects = func_get_args();

		if (!count($objects)) {

			return false;

		}

		$errors = array();

		foreach ($objects as $object) {

			$this->{$object->alias}->set($object->data);

			$errors = array_merge($errors, $this->{$object->alias}->invalidFields());

		}

		return $this->validationErrors = (count($errors) ? $errors : false);

	}

/**

 * Instantiates the correct view class, hands it its data, and uses it to render the view output.

 *

 * @param string $action Action name to render

 * @param string $layout Layout to use

 * @param string $file File to use for rendering

 * @return string Full output string of view contents

 * @access public

 * @link http://book.cakephp.org/view/428/render

 */

	function render($action = null, $layout = null, $file = null) {

		$this->beforeRender();

		$viewClass = $this->view;

		if ($this->view != 'View') {

			if (strpos($viewClass, '.') !== false) {

				list($plugin, $viewClass) = explode('.', $viewClass);

			}

			$viewClass = $viewClass . 'View';

			App::import('View', $this->view);

		}

		$this->Component->beforeRender($this);

		$this->params['models'] = $this->modelNames;

		if (Configure::read() > 2) {

			$this->set('cakeDebug', $this);

		}

		$View =& new $viewClass($this);

		if (!empty($this->modelNames)) {

			$models = array();

			foreach ($this->modelNames as $currentModel) {

				if (isset($this->$currentModel) && is_a($this->$currentModel, 'Model')) {

					$models[] = Inflector::underscore($currentModel);

				}

				if (isset($this->$currentModel) && is_a($this->$currentModel, 'Model') && !empty($this->$currentModel->validationErrors)) {

					$View->validationErrors[Inflector::camelize($currentModel)] =& $this->$currentModel->validationErrors;

				}

			}

			$models = array_diff(ClassRegistry::keys(), $models);

			foreach ($models as $currentModel) {

				if (ClassRegistry::isKeySet($currentModel)) {

					$currentObject =& ClassRegistry::getObject($currentModel);

					if (is_a($currentObject, 'Model') && !empty($currentObject->validationErrors)) {

						$View->validationErrors[Inflector::camelize($currentModel)] =& $currentObject->validationErrors;

					}

				}

			}

		}

		$this->autoRender = false;

		$this->output .= $View->render($action, $layout, $file);

		return $this->output;

	}

/**

 * Returns the referring URL for this request.

 *

 * @param string $default Default URL to use if HTTP_REFERER cannot be read from headers

 * @param boolean $local If true, restrict referring URLs to local server

 * @return string Referring URL

 * @access public

 * @link http://book.cakephp.org/view/430/referer

 */

	function referer($default = null, $local = false) {

		$ref = env('HTTP_REFERER');

		if (!empty($ref) && defined('FULL_BASE_URL')) {

			$base = FULL_BASE_URL . $this->webroot;

			if (strpos($ref, $base) === 0) {

				$return =  substr($ref, strlen($base));

				if ($return[0] != '/') {

					$return = '/'.$return;

				}

				return $return;

			} elseif (!$local) {

				return $ref;

			}

		}

		if ($default != null) {

			return $default;

		}

		return '/';

	}

/**

 * Forces the user's browser not to cache the results of the current request.

 *

 * @return void

 * @access public

 * @link http://book.cakephp.org/view/431/disableCache

 */

	function disableCache() {

		header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");

		header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");

		header("Cache-Control: no-store, no-cache, must-revalidate");

		header("Cache-Control: post-check=0, pre-check=0", false);

		header("Pragma: no-cache");

	}

/**

 * Shows a message to the user for $pause seconds, then redirects to $url.

 * Uses flash.ctp as the default layout for the message.

 * Does not work if the current debug level is higher than 0.

 *

 * @param string $message Message to display to the user

 * @param string $url Relative URL to redirect to after the time expires

 * @param integer $pause Time to show the message

 * @return void Renders flash layout

 * @access public

 * @link http://book.cakephp.org/view/426/flash

 */

	function flash($message, $url, $pause = 1) {

		$this->autoRender = false;

		$this->set('url', Router::url($url));

		$this->set('message', $message);

		$this->set('pause', $pause);

		$this->set('page_title', $message);

		$this->render(false, 'flash');

	}

/**

 * Converts POST'ed form data to a model conditions array, suitable for use in a Model::find() call.

 *

 * @param array $data POST'ed data organized by model and field

 * @param mixed $op A string containing an SQL comparison operator, or an array matching operators to fields

 * @param string $bool SQL boolean operator: AND, OR, XOR, etc.

 * @param boolean $exclusive If true, and $op is an array, fields not included in $op will not be included in the returned conditions

 * @return array An array of model conditions

 * @access public

 * @link http://book.cakephp.org/view/432/postConditions

 */

	function postConditions($data = array(), $op = null, $bool = 'AND', $exclusive = false) {

		if (!is_array($data) || empty($data)) {

			if (!empty($this->data)) {

				$data = $this->data;

			} else {

				return null;

			}

		}

		$cond = array();

		if ($op === null) {

			$op = '';

		}

		foreach ($data as $model => $fields) {

			foreach ($fields as $field => $value) {

				$key = $model.'.'.$field;

				$fieldOp = $op;

				if (is_array($op) && array_key_exists($key, $op)) {

					$fieldOp = $op[$key];

				} elseif (is_array($op) && array_key_exists($field, $op)) {

					$fieldOp = $op[$field];

				} elseif (is_array($op)) {

					$fieldOp = false;

				}

				if ($exclusive && $fieldOp === false) {

					continue;

				}

				$fieldOp = strtoupper(trim($fieldOp));

				if ($fieldOp === 'LIKE') {

					$key = $key.' LIKE';

					$value = '%'.$value.'%';

				} elseif ($fieldOp && $fieldOp != '=') {

					$key = $key.' '.$fieldOp;

				}

				$cond[$key] = $value;

			}

		}

		if ($bool != null && strtoupper($bool) != 'AND') {

			$cond = array($bool => $cond);

		}

		return $cond;

	}

/**

 * Handles automatic pagination of model records.

 *

 * @param mixed $object Model to paginate (e.g: model instance, or 'Model', or 'Model.InnerModel')

 * @param mixed $scope Conditions to use while paginating

 * @param array $whitelist List of allowed options for paging

 * @return array Model query results

 * @access public

 * @link http://book.cakephp.org/view/165/Controller-Setup

 */

	function paginate($object = null, $scope = array(), $whitelist = array()) {

		if (is_array($object)) {

			$whitelist = $scope;

			$scope = $object;

			$object = null;

		}

		$assoc = null;

		if (is_string($object)) {

			$assoc = null;

			if (strpos($object, '.') !== false) {

				list($object, $assoc) = explode('.', $object);

			}

			if ($assoc && isset($this->{$object}->{$assoc})) {

				$object = $this->{$object}->{$assoc};

			} elseif ($assoc && isset($this->{$this->modelClass}) && isset($this->{$this->modelClass}->{$assoc})) {

				$object = $this->{$this->modelClass}->{$assoc};

			} elseif (isset($this->{$object})) {

				$object = $this->{$object};

			} elseif (isset($this->{$this->modelClass}) && isset($this->{$this->modelClass}->{$object})) {

				$object = $this->{$this->modelClass}->{$object};

			}

		} elseif (empty($object) || $object === null) {

			if (isset($this->{$this->modelClass})) {

				$object = $this->{$this->modelClass};

			} else {

				$className = null;

				$name = $this->uses[0];

				if (strpos($this->uses[0], '.') !== false) {

					list($name, $className) = explode('.', $this->uses[0]);

				}

				if ($className) {

					$object = $this->{$className};

				} else {

					$object = $this->{$name};

				}

			}

		}

		if (!is_object($object)) {

			trigger_error(sprintf(__('Controller::paginate() - can\'t find model %1$s in controller %2$sController', true), $object, $this->name), E_USER_WARNING);

			return array();

		}

		$options = array_merge($this->params, $this->params['url'], $this->passedArgs);

		if (isset($this->paginate[$object->alias])) {

			$defaults = $this->paginate[$object->alias];

		} else {

			$defaults = $this->paginate;

		}

		if (isset($options['show'])) {

			$options['limit'] = $options['show'];

		}

		if (isset($options['sort'])) {

			$direction = null;

			if (isset($options['direction'])) {

				$direction = strtolower($options['direction']);

			}

			if ($direction != 'asc' && $direction != 'desc') {

				$direction = 'asc';

			}

			$options['order'] = array($options['sort'] => $direction);

		}

		if (!empty($options['order']) && is_array($options['order'])) {

			$alias = $object->alias ;

			$key = $field = key($options['order']);

			if (strpos($key, '.') !== false) {

				list($alias, $field) = explode('.', $key);

			}

			$value = $options['order'][$key];

			unset($options['order'][$key]);

			if (isset($object->{$alias}) && $object->{$alias}->hasField($field)) {

				$options['order'][$alias . '.' . $field] = $value;

			} elseif ($object->hasField($field)) {

				$options['order'][$alias . '.' . $field] = $value;

			}

		}

		$vars = array('fields', 'order', 'limit', 'page', 'recursive');

		$keys = array_keys($options);

		$count = count($keys);