zoneminder/web/lib/Cake/Controller/Controller.php

1239 lines
36 KiB
PHP

<?php
/**
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @package Cake.Controller
* @since CakePHP(tm) v 0.2.9
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
*/
App::uses('CakeResponse', 'Network');
App::uses('ClassRegistry', 'Utility');
App::uses('ComponentCollection', 'Controller');
App::uses('View', 'View');
App::uses('CakeEvent', 'Event');
App::uses('CakeEventListener', 'Event');
App::uses('CakeEventManager', 'Event');
/**
* Application controller class for organization of business logic.
* Provides basic functionality, such as rendering views inside layouts,
* automatic model availability, redirection, callbacks, and more.
*
* Controllers should provide a number of 'action' methods. These are public methods on the controller
* that are not prefixed with a '_' and not part of Controller. Each action serves as an endpoint for
* performing a specific action on a resource or collection of resources. For example adding or editing a new
* object, or listing a set of objects.
*
* You can access request parameters, using `$this->request`. The request object contains all the POST, GET and FILES
* that were part of the request.
*
* After performing the required actions, controllers are responsible for creating a response. This usually
* takes the form of a generated View, or possibly a redirection to another controller action. In either case
* `$this->response` allows you to manipulate all aspects of the response.
*
* Controllers are created by Dispatcher based on request parameters and routing. By default controllers and actions
* use conventional names. For example `/posts/index` maps to `PostsController::index()`. You can re-map urls
* using Router::connect().
*
* @package Cake.Controller
* @property AclComponent $Acl
* @property AuthComponent $Auth
* @property CookieComponent $Cookie
* @property EmailComponent $Email
* @property PaginatorComponent $Paginator
* @property RequestHandlerComponent $RequestHandler
* @property SecurityComponent $Security
* @property SessionComponent $Session
* @link http://book.cakephp.org/2.0/en/controllers.html
*/
class Controller extends Object implements CakeEventListener {
/**
* The name of this controller. Controller names are plural, named after the model they manipulate.
*
* @var string
* @link http://book.cakephp.org/2.0/en/controllers.html#controller-attributes
*/
public $name = null;
/**
* An array containing the class names of models this controller uses.
*
* Example: `public $uses = array('Product', 'Post', 'Comment');`
*
* Can be set to several values to express different options:
*
* - `true` Use the default inflected model name.
* - `array()` Use only models defined in the parent class.
* - `false` Use no models at all, do not merge with parent class either.
* - `array('Post', 'Comment')` Use only the Post and Comment models. Models
* Will also be merged with the parent class.
*
* The default value is `true`.
*
* @var mixed A single name as a string or a list of names as an array.
* @link http://book.cakephp.org/2.0/en/controllers.html#components-helpers-and-uses
*/
public $uses = true;
/**
* An array containing the names of helpers this controller uses. The array elements should
* not contain the "Helper" part of the classname.
*
* Example: `public $helpers = array('Html', 'Javascript', 'Time', 'Ajax');`
*
* @var mixed A single name as a string or a list of names as an array.
* @link http://book.cakephp.org/2.0/en/controllers.html#components-helpers-and-uses
*/
public $helpers = array();
/**
* An instance of a CakeRequest object that contains information about the current request.
* This object contains all the information about a request and several methods for reading
* additional information about the request.
*
* @var CakeRequest
* @link http://book.cakephp.org/2.0/en/controllers/request-response.html#cakerequest
*/
public $request;
/**
* An instance of a CakeResponse object that contains information about the impending response
*
* @var CakeResponse
* @link http://book.cakephp.org/2.0/en/controllers/request-response.html#cakeresponse
*/
public $response;
/**
* The classname to use for creating the response object.
*
* @var string
*/
protected $_responseClass = 'CakeResponse';
/**
* The name of the views subfolder containing views for this controller.
*
* @var string
*/
public $viewPath = null;
/**
* The name of the layouts subfolder containing layouts for this controller.
*
* @var string
*/
public $layoutPath = null;
/**
* Contains variables to be handed to the view.
*
* @var array
*/
public $viewVars = array();
/**
* The name of the view file to render. The name specified
* is the filename in /app/View/<SubFolder> without the .ctp extension.
*
* @var string
*/
public $view = null;
/**
* The name of the layout file to render the view inside of. The name specified
* is the filename of the layout in /app/View/Layouts without the .ctp
* extension.
*
* @var string
*/
public $layout = 'default';
/**
* Set to true to automatically render the view
* after action logic.
*
* @var boolean
*/
public $autoRender = true;
/**
* Set to true to automatically render the layout around views.
*
* @var boolean
*/
public $autoLayout = true;
/**
* Instance of ComponentCollection used to handle callbacks.
*
* @var ComponentCollection
*/
public $Components = null;
/**
* Array containing the names of components this controller uses. Component names
* should not contain the "Component" portion of the classname.
*
* Example: `public $components = array('Session', 'RequestHandler', 'Acl');`
*
* @var array
* @link http://book.cakephp.org/2.0/en/controllers/components.html
*/
public $components = array('Session');
/**
* The name of the View class this controller sends output to.
*
* @var string
*/
public $viewClass = 'View';
/**
* Instance of the View created during rendering. Won't be set until after
* Controller::render() is called.
*
* @var View
*/
public $View;
/**
* File extension for view templates. Defaults to Cake's conventional ".ctp".
*
* @var string
*/
public $ext = '.ctp';
/**
* Automatically set to the name of a plugin.
*
* @var string
*/
public $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:
*
* {{{
* public $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
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/cache.html#additional-configuration-options
*/
public $cacheAction = false;
/**
* Holds all params passed and named.
*
* @var mixed
*/
public $passedArgs = array();
/**
* Triggers Scaffolding
*
* @var mixed
* @link http://book.cakephp.org/2.0/en/controllers/scaffolding.html
*/
public $scaffold = false;
/**
* Holds current methods of the controller. This is a list of all the methods reachable
* via url. Modifying this array, will allow you to change which methods can be reached.
*
* @var array
*/
public $methods = array();
/**
* This controller's primary model class name, the Inflector::singularize()'ed version of
* the controller's $name property.
*
* Example: For a controller named 'Comments', the modelClass would be 'Comment'
*
* @var string
*/
public $modelClass = null;
/**
* This controller's model key name, an underscored version of the controller's $modelClass property.
*
* Example: For a controller named 'ArticleComments', the modelKey would be 'article_comment'
*
* @var string
*/
public $modelKey = null;
/**
* Holds any validation errors produced by the last call of the validateErrors() method/
*
* @var array Validation errors, or false if none
*/
public $validationErrors = null;
/**
* The class name of the parent class you wish to merge with.
* Typically this is AppController, but you may wish to merge vars with a different
* parent class.
*
* @var string
*/
protected $_mergeParent = 'AppController';
/**
* Instance of the CakeEventManager this controller is using
* to dispatch inner events.
*
* @var CakeEventManager
*/
protected $_eventManager = null;
/**
* Constructor.
*
* @param CakeRequest $request Request object for this controller. Can be null for testing,
* but expect that features that use the request parameters will not work.
* @param CakeResponse $response Response object for this controller.
*/
public function __construct($request = null, $response = null) {
if ($this->name === null) {
$this->name = substr(get_class($this), 0, -10);
}
if (!$this->viewPath) {
$this->viewPath = $this->name;
}
$this->modelClass = Inflector::singularize($this->name);
$this->modelKey = Inflector::underscore($this->modelClass);
$this->Components = new ComponentCollection();
$childMethods = get_class_methods($this);
$parentMethods = get_class_methods('Controller');
$this->methods = array_diff($childMethods, $parentMethods);
if ($request instanceof CakeRequest) {
$this->setRequest($request);
}
if ($response instanceof CakeResponse) {
$this->response = $response;
}
parent::__construct();
}
/**
* Provides backwards compatibility to avoid problems with empty and isset to alias properties.
* Lazy loads models using the loadModel() method if declared in $uses
*
* @param string $name
* @return void
*/
public function __isset($name) {
switch ($name) {
case 'base':
case 'here':
case 'webroot':
case 'data':
case 'action':
case 'params':
return true;
}
if (is_array($this->uses)) {
foreach ($this->uses as $modelClass) {
list($plugin, $class) = pluginSplit($modelClass, true);
if ($name === $class) {
return $this->loadModel($modelClass);
}
}
}
if ($name === $this->modelClass) {
list($plugin, $class) = pluginSplit($name, true);
if (!$plugin) {
$plugin = $this->plugin ? $this->plugin . '.' : null;
}
return $this->loadModel($plugin . $this->modelClass);
}
return false;
}
/**
* Provides backwards compatibility access to the request object properties.
* Also provides the params alias.
*
* @param string $name
* @return void
*/
public function __get($name) {
switch ($name) {
case 'base':
case 'here':
case 'webroot':
case 'data':
return $this->request->{$name};
case 'action':
return isset($this->request->params['action']) ? $this->request->params['action'] : '';
case 'params':
return $this->request;
case 'paginate':
return $this->Components->load('Paginator')->settings;
}
if (isset($this->{$name})) {
return $this->{$name};
}
return null;
}
/**
* Provides backwards compatibility access for setting values to the request object.
*
* @param string $name
* @param mixed $value
* @return void
*/
public function __set($name, $value) {
switch ($name) {
case 'base':
case 'here':
case 'webroot':
case 'data':
return $this->request->{$name} = $value;
case 'action':
return $this->request->params['action'] = $value;
case 'params':
return $this->request->params = $value;
case 'paginate':
return $this->Components->load('Paginator')->settings = $value;
}
return $this->{$name} = $value;
}
/**
* Sets the request objects and configures a number of controller properties
* based on the contents of the request. The properties that get set are
*
* - $this->request - To the $request parameter
* - $this->plugin - To the $request->params['plugin']
* - $this->view - To the $request->params['action']
* - $this->autoLayout - To the false if $request->params['bare']; is set.
* - $this->autoRender - To false if $request->params['return'] == 1
* - $this->passedArgs - The the combined results of params['named'] and params['pass]
*
* @param CakeRequest $request
* @return void
*/
public function setRequest(CakeRequest $request) {
$this->request = $request;
$this->plugin = isset($request->params['plugin']) ? Inflector::camelize($request->params['plugin']) : null;
$this->view = isset($request->params['action']) ? $request->params['action'] : null;
if (isset($request->params['pass']) && isset($request->params['named'])) {
$this->passedArgs = array_merge($request->params['pass'], $request->params['named']);
}
if (!empty($request->params['return']) && $request->params['return'] == 1) {
$this->autoRender = false;
}
if (!empty($request->params['bare'])) {
$this->autoLayout = false;
}
}
/**
* Dispatches the controller action. Checks that the action
* exists and isn't private.
*
* @param CakeRequest $request
* @return mixed The resulting response.
* @throws PrivateActionException When actions are not public or prefixed by _
* @throws MissingActionException When actions are not defined and scaffolding is
* not enabled.
*/
public function invokeAction(CakeRequest $request) {
try {
$method = new ReflectionMethod($this, $request->params['action']);
if ($this->_isPrivateAction($method, $request)) {
throw new PrivateActionException(array(
'controller' => $this->name . "Controller",
'action' => $request->params['action']
));
}
return $method->invokeArgs($this, $request->params['pass']);
} catch (ReflectionException $e) {
if ($this->scaffold !== false) {
return $this->_getScaffold($request);
}
throw new MissingActionException(array(
'controller' => $this->name . "Controller",
'action' => $request->params['action']
));
}
}
/**
* Check if the request's action is marked as private, with an underscore,
* or if the request is attempting to directly accessing a prefixed action.
*
* @param ReflectionMethod $method The method to be invoked.
* @param CakeRequest $request The request to check.
* @return boolean
*/
protected function _isPrivateAction(ReflectionMethod $method, CakeRequest $request) {
$privateAction = (
$method->name[0] === '_' ||
!$method->isPublic() ||
!in_array($method->name, $this->methods)
);
$prefixes = Router::prefixes();
if (!$privateAction && !empty($prefixes)) {
if (empty($request->params['prefix']) && strpos($request->params['action'], '_') > 0) {
list($prefix) = explode('_', $request->params['action']);
$privateAction = in_array($prefix, $prefixes);
}
}
return $privateAction;
}
/**
* Returns a scaffold object to use for dynamically scaffolded controllers.
*
* @param CakeRequest $request
* @return Scaffold
*/
protected function _getScaffold(CakeRequest $request) {
return new Scaffold($this, $request);
}
/**
* Merge components, helpers, and uses vars from
* Controller::$_mergeParent and PluginAppController.
*
* @return void
*/
protected function _mergeControllerVars() {
$pluginController = $pluginDot = null;
$mergeParent = is_subclass_of($this, $this->_mergeParent);
$pluginVars = array();
$appVars = array();
if (!empty($this->plugin)) {
$pluginController = $this->plugin . 'AppController';
if (!is_subclass_of($this, $pluginController)) {
$pluginController = null;
}
$pluginDot = $this->plugin . '.';
}
if ($pluginController) {
$merge = array('components', 'helpers');
$this->_mergeVars($merge, $pluginController);
}
if ($mergeParent || !empty($pluginController)) {
$appVars = get_class_vars($this->_mergeParent);
$merge = array('components', 'helpers');
$this->_mergeVars($merge, $this->_mergeParent, true);
}
if ($this->uses === null) {
$this->uses = false;
}
if ($this->uses === true) {
$this->uses = array($pluginDot . $this->modelClass);
}
if (isset($appVars['uses']) && $appVars['uses'] === $this->uses) {
array_unshift($this->uses, $pluginDot . $this->modelClass);
}
if ($pluginController) {
$pluginVars = get_class_vars($pluginController);
}
if ($this->uses !== false) {
$this->_mergeUses($pluginVars);
$this->_mergeUses($appVars);
} else {
$this->uses = array();
$this->modelClass = '';
}
}
/**
* Helper method for merging the $uses property together.
*
* Merges the elements not already in $this->uses into
* $this->uses.
*
* @param array $merge The data to merge in.
* @return void
*/
protected function _mergeUses($merge) {
if (!isset($merge['uses'])) {
return;
}
if ($merge['uses'] === true) {
return;
}
$this->uses = array_merge(
$this->uses,
array_diff($merge['uses'], $this->uses)
);
}
/**
* Returns a list of all events that will fire in the controller during it's lifecycle.
* You can override this function to add you own listener callbacks
*
* @return array
*/
public function implementedEvents() {
return array(
'Controller.initialize' => 'beforeFilter',
'Controller.beforeRender' => 'beforeRender',
'Controller.beforeRedirect' => array('callable' => 'beforeRedirect', 'passParams' => true),
'Controller.shutdown' => 'afterFilter'
);
}
/**
* Loads Model classes based on 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.
* @see Controller::loadModel()
* @link http://book.cakephp.org/2.0/en/controllers.html#Controller::constructClasses
* @throws MissingModelException
*/
public function constructClasses() {
$this->_mergeControllerVars();
$this->Components->init($this);
if ($this->uses) {
$this->uses = (array)$this->uses;
list(, $this->modelClass) = pluginSplit(current($this->uses));
}
return true;
}
/**
* Returns the CakeEventManager manager instance that is handling any callbacks.
* You can use this instance to register any new listeners or callbacks to the
* controller events, or create your own events and trigger them at will.
*
* @return CakeEventManager
*/
public function getEventManager() {
if (empty($this->_eventManager)) {
$this->_eventManager = new CakeEventManager();
$this->_eventManager->attach($this->Components);
$this->_eventManager->attach($this);
}
return $this->_eventManager;
}
/**
* Perform the startup process for this controller.
* Fire the Components and Controller callbacks in the correct order.
*
* - Initializes components, which fires their `initialize` callback
* - Calls the controller `beforeFilter`.
* - triggers Component `startup` methods.
*
* @return void
*/
public function startupProcess() {
$this->getEventManager()->dispatch(new CakeEvent('Controller.initialize', $this));
$this->getEventManager()->dispatch(new CakeEvent('Controller.startup', $this));
}
/**
* Perform the various shutdown processes for this controller.
* Fire the Components and Controller callbacks in the correct order.
*
* - triggers the component `shutdown` callback.
* - calls the Controller's `afterFilter` method.
*
* @return void
*/
public function shutdownProcess() {
$this->getEventManager()->dispatch(new CakeEvent('Controller.shutdown', $this));
}
/**
* Queries & sets valid HTTP response codes & messages.
*
* @param integer|array $code If $code is an integer, then the corresponding code/message is
* returned if it exists, null if it does not exist. If $code is an array,
* then the 'code' and 'message' keys of each nested array are added to the default
* HTTP codes. Example:
*
* httpCodes(404); // returns array(404 => 'Not Found')
*
* httpCodes(array(
* 701 => 'Unicorn Moved',
* 800 => 'Unexpected Minotaur'
* )); // sets these new values, and returns true
*
* @return array Associative array of the HTTP codes as keys, and the message
* strings as values, or null of the given $code does not exist.
* @deprecated Use CakeResponse::httpCodes();
*/
public function httpCodes($code = null) {
return $this->response->httpCodes($code);
}
/**
* Loads and instantiates models required by this controller.
* 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 integer|string $id Initial ID the instanced model class should have
* @return mixed true when single model found and instance created, error returned if model not found.
* @throws MissingModelException if the model class cannot be found.
*/
public function loadModel($modelClass = null, $id = null) {
if ($modelClass === null) {
$modelClass = $this->modelClass;
}
$this->uses = ($this->uses) ? (array)$this->uses : array();
if (!in_array($modelClass, $this->uses, true)) {
$this->uses[] = $modelClass;
}
list($plugin, $modelClass) = pluginSplit($modelClass, true);
$this->{$modelClass} = ClassRegistry::init(array(
'class' => $plugin . $modelClass, 'alias' => $modelClass, 'id' => $id
));
if (!$this->{$modelClass}) {
throw new MissingModelException($modelClass);
}
return true;
}
/**
* Redirects to given $url, after turning off $this->autoRender.
* Script execution is halted after the redirect.
*
* @param string|array $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 $exit If true, exit() will be called after the redirect
* @return void
* @link http://book.cakephp.org/2.0/en/controllers.html#Controller::redirect
*/
public function redirect($url, $status = null, $exit = true) {
$this->autoRender = false;
if (is_array($status)) {
extract($status, EXTR_OVERWRITE);
}
$event = new CakeEvent('Controller.beforeRedirect', $this, array($url, $status, $exit));
list($event->break, $event->breakOn, $event->collectReturn) = array(true, false, true);
$this->getEventManager()->dispatch($event);
if ($event->isStopped()) {
return;
}
$response = $event->result;
extract($this->_parseBeforeRedirect($response, $url, $status, $exit), EXTR_OVERWRITE);
if ($url !== null) {
$this->response->header('Location', Router::url($url, true));
}
if (is_string($status)) {
$codes = array_flip($this->response->httpCodes());
if (isset($codes[$status])) {
$status = $codes[$status];
}
}
if ($status) {
$this->response->statusCode($status);
}
if ($exit) {
$this->response->send();
$this->_stop();
}
}
/**
* Parse beforeRedirect Response
*
* @param mixed $response Response from beforeRedirect callback
* @param string|array $url The same value of beforeRedirect
* @param integer $status The same value of beforeRedirect
* @param boolean $exit The same value of beforeRedirect
* @return array Array with keys url, status and exit
*/
protected function _parseBeforeRedirect($response, $url, $status, $exit) {
if (is_array($response) && array_key_exists(0, $response)) {
foreach ($response as $resp) {
if (is_array($resp) && isset($resp['url'])) {
extract($resp, EXTR_OVERWRITE);
} elseif ($resp !== null) {
$url = $resp;
}
}
} elseif (is_array($response)) {
extract($response, EXTR_OVERWRITE);
}
return compact('url', 'status', 'exit');
}
/**
* Convenience and object wrapper method for CakeResponse::header().
*
* @param string $status The header message that is being set.
* @return void
* @deprecated Use CakeResponse::header()
*/
public function header($status) {
$this->response->header($status);
}
/**
* Saves a variable for use inside a view template.
*
* @param string|array $one A string or an array of data.
* @param string|array $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 $one's keys.
* @return void
* @link http://book.cakephp.org/2.0/en/controllers.html#interacting-with-views
*/
public function set($one, $two = null) {
if (is_array($one)) {
if (is_array($two)) {
$data = array_combine($one, $two);
} else {
$data = $one;
}
} else {
$data = array($one => $two);
}
$this->viewVars = $data + $this->viewVars;
}
/**
* Internally redirects one action to another. Does not perform another HTTP request unlike Controller::redirect()
*
* Examples:
*
* {{{
* setAction('another_action');
* setAction('action_with_parameters', $parameter1);
* }}}
*
* @param string $action The new action to be 'redirected' to.
* Any other parameters passed to this method will be passed as parameters to the new action.
* @return mixed Returns the return value of the called action
*/
public function setAction($action) {
$this->request->params['action'] = $action;
$this->view = $action;
$args = func_get_args();
unset($args[0]);
return call_user_func_array(array(&$this, $action), $args);
}
/**
* Returns number of errors in a submitted FORM.
*
* @return integer Number of errors
*/
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
*/
public function validateErrors() {
$objects = func_get_args();
if (empty($objects)) {
return false;
}
$errors = array();
foreach ($objects as $object) {
if (isset($this->{$object->alias})) {
$object = $this->{$object->alias};
}
$object->set($object->data);
$errors = array_merge($errors, $object->invalidFields());
}
return $this->validationErrors = (!empty($errors) ? $errors : false);
}
/**
* Instantiates the correct view class, hands it its data, and uses it to render the view output.
*
* @param string $view View to use for rendering
* @param string $layout Layout to use
* @return CakeResponse A response object containing the rendered view.
* @link http://book.cakephp.org/2.0/en/controllers.html#Controller::render
*/
public function render($view = null, $layout = null) {
$event = new CakeEvent('Controller.beforeRender', $this);
$this->getEventManager()->dispatch($event);
if ($event->isStopped()) {
$this->autoRender = false;
return $this->response;
}
if (!empty($this->uses) && is_array($this->uses)) {
foreach ($this->uses as $model) {
list($plugin, $className) = pluginSplit($model);
$this->request->params['models'][$className] = compact('plugin', 'className');
}
}
$this->View = $this->_getViewObject();
$models = ClassRegistry::keys();
foreach ($models as $currentModel) {
$currentObject = ClassRegistry::getObject($currentModel);
if (is_a($currentObject, 'Model')) {
$className = get_class($currentObject);
list($plugin) = pluginSplit(App::location($className));
$this->request->params['models'][$currentObject->alias] = compact('plugin', 'className');
$this->View->validationErrors[$currentObject->alias] =& $currentObject->validationErrors;
}
}
$this->autoRender = false;
$this->response->body($this->View->render($view, $layout));
return $this->response;
}
/**
* Returns the referring URL for this request.
*
* @param string $default Default URL to use if HTTP_REFERER cannot be read from headers
* @param boolean $local If true, restrict referring URLs to local server
* @return string Referring URL
* @link http://book.cakephp.org/2.0/en/controllers.html#Controller::referer
*/
public function referer($default = null, $local = false) {
if (!$this->request) {
return '/';
}
$referer = $this->request->referer($local);
if ($referer === '/' && $default) {
return Router::url($default, true);
}
return $referer;
}
/**
* Forces the user's browser not to cache the results of the current request.
*
* @return void
* @link http://book.cakephp.org/2.0/en/controllers.html#Controller::disableCache
* @deprecated Use CakeResponse::disableCache()
*/
public function disableCache() {
$this->response->disableCache();
}
/**
* 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|array $url Relative string or array-based URL to redirect to after the time expires
* @param integer $pause Time to show the message
* @param string $layout Layout you want to use, defaults to 'flash'
* @return void
* @link http://book.cakephp.org/2.0/en/controllers.html#Controller::flash
*/
public function flash($message, $url, $pause = 1, $layout = 'flash') {
$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, $layout);
}
/**
* 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 string|array $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 $op will not be
* included in the returned conditions
* @return array An array of model conditions
* @deprecated
*/
public function postConditions($data = array(), $op = null, $bool = 'AND', $exclusive = false) {
if (!is_array($data) || empty($data)) {
if (!empty($this->request->data)) {
$data = $this->request->data;
} else {
return null;
}
}
$cond = array();
if ($op === null) {
$op = '';
}
$arrayOp = is_array($op);
foreach ($data as $model => $fields) {
foreach ($fields as $field => $value) {
$key = $model . '.' . $field;
$fieldOp = $op;
if ($arrayOp) {
if (array_key_exists($key, $op)) {
$fieldOp = $op[$key];
} elseif (array_key_exists($field, $op)) {
$fieldOp = $op[$field];
} else {
$fieldOp = false;
}
}
if ($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 && strtoupper($bool) !== 'AND') {
$cond = array($bool => $cond);
}
return $cond;
}
/**
* Handles automatic pagination of model records.
*
* @param Model|string $object Model to paginate (e.g: model instance, or 'Model', or 'Model.InnerModel')
* @param string|array $scope Conditions to use while paginating
* @param array $whitelist List of allowed options for paging
* @return array Model query results
* @link http://book.cakephp.org/2.0/en/controllers.html#Controller::paginate
* @deprecated Use PaginatorComponent instead
*/
public function paginate($object = null, $scope = array(), $whitelist = array()) {
return $this->Components->load('Paginator', $this->paginate)->paginate($object, $scope, $whitelist);
}
/**
* Called before the controller action. You can use this method to configure and customize components
* or perform logic that needs to happen before each controller action.
*
* @return void
* @link http://book.cakephp.org/2.0/en/controllers.html#request-life-cycle-callbacks
*/
public function beforeFilter() {
}
/**
* Called after the controller action is run, but before the view is rendered. You can use this method
* to perform logic or set view variables that are required on every request.
*
* @return void
* @link http://book.cakephp.org/2.0/en/controllers.html#request-life-cycle-callbacks
*/
public function beforeRender() {
}
/**
* The beforeRedirect method is invoked when the controller's redirect method is called but before any
* further action.
*
* If this method returns false the controller will not continue on to redirect the request.
* The $url, $status and $exit variables have same meaning as for the controller's method. You can also
* return a string which will be interpreted as the url to redirect to or return associative array with
* key 'url' and optionally 'status' and 'exit'.
*
* @param string|array $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 $exit If true, exit() will be called after the redirect
* @return mixed
* false to stop redirection event,
* string controllers a new redirection url or
* array with the keys url, status and exit to be used by the redirect method.
* @link http://book.cakephp.org/2.0/en/controllers.html#request-life-cycle-callbacks
*/
public function beforeRedirect($url, $status = null, $exit = true) {
}
/**
* Called after the controller action is run and rendered.
*
* @return void
* @link http://book.cakephp.org/2.0/en/controllers.html#request-life-cycle-callbacks
*/
public function afterFilter() {
}
/**
* This method should be overridden in child classes.
*
* @param string $method name of method called example index, edit, etc.
* @return boolean Success
* @link http://book.cakephp.org/2.0/en/controllers.html#callbacks
*/
public function beforeScaffold($method) {
return true;
}
/**
* Alias to beforeScaffold()
*
* @param string $method
* @return boolean
* @see Controller::beforeScaffold()
* @deprecated
*/
protected function _beforeScaffold($method) {
return $this->beforeScaffold($method);
}
/**
* This method should be overridden in child classes.
*
* @param string $method name of method called either edit or update.
* @return boolean Success
* @link http://book.cakephp.org/2.0/en/controllers.html#callbacks
*/
public function afterScaffoldSave($method) {
return true;
}
/**
* Alias to afterScaffoldSave()
*
* @param string $method
* @return boolean
* @see Controller::afterScaffoldSave()
* @deprecated
*/
protected function _afterScaffoldSave($method) {
return $this->afterScaffoldSave($method);
}
/**
* This method should be overridden in child classes.
*
* @param string $method name of method called either edit or update.
* @return boolean Success
* @link http://book.cakephp.org/2.0/en/controllers.html#callbacks
*/
public function afterScaffoldSaveError($method) {
return true;
}
/**
* Alias to afterScaffoldSaveError()
*
* @param string $method
* @return boolean
* @see Controller::afterScaffoldSaveError()
* @deprecated
*/
protected function _afterScaffoldSaveError($method) {
return $this->afterScaffoldSaveError($method);
}
/**
* This method should be overridden in child classes.
* If not it will render a scaffold error.
* Method MUST return true in child classes
*
* @param string $method name of method called example index, edit, etc.
* @return boolean Success
* @link http://book.cakephp.org/2.0/en/controllers.html#callbacks
*/
public function scaffoldError($method) {
return false;
}
/**
* Alias to scaffoldError()
*
* @param string $method
* @return boolean
* @see Controller::scaffoldError()
* @deprecated
*/
protected function _scaffoldError($method) {
return $this->scaffoldError($method);
}
/**
* Constructs the view class instance based on the controller property
*
* @return View
*/
protected function _getViewObject() {
$viewClass = $this->viewClass;
if ($this->viewClass !== 'View') {
list($plugin, $viewClass) = pluginSplit($viewClass, true);
$viewClass = $viewClass . 'View';
App::uses($viewClass, $plugin . 'View');
}
return new $viewClass($this);
}
}