Class FlashComponent
The CakePHP FlashComponent provides a way for you to write a flash variable to the session from your controllers, to be rendered in a view with the FlashHelper.
Copyright: Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
License: MIT License
Located at Cake/Controller/Component/FlashComponent.php
Method Detail
__callsource public
__call( string $name , array $args )
Magic method for verbose flash methods based on element names.
For example: $this->Flash->success('My message') would use the success.ctp element under app/View/Element/Flash for rendering the flash message.
Parameters
-  string $name
- Element name to use.
-  array $args
- Parameters to pass when calling FlashComponent::set().
Throws
InternalErrorExceptionIf missing the flash message.
__constructsource public
__construct( ComponentCollection $collection , array $settings array() )
Constructor
Parameters
-  ComponentCollection$collection
- The ComponentCollection object
-  array $settingsoptional array()
- Settings passed via controller
Overrides
Component::__construct()  setsource public
set( string $message , array $options array() )
Used to set a session variable that can be used to output messages in the view.
In your controller: $this->Flash->set('This has been saved');
Options:
- 
keyThe key to set under the session's Flash key
- 
elementThe element used to render the flash message. Default to 'default'.
- 
paramsAn array of variables to make available when using an element
Parameters
-  string $message
- Message to be flashed. If an instance of Exception the exception message will be used and code will be set in params.
-  array $optionsoptional array()
- An array of options.
Methods inherited from Component
__getsource public
__get( string $name )
Magic method for lazy loading $components.
Parameters
-  string $name
- Name of component to get.
Returns
mixedA Component object or null.
beforeRedirectsource public
beforeRedirect( Controller $controller , string|array $url , integer $status null , boolean $exit true )
Called before Controller::redirect(). Allows you to replace the URL that will be redirected to with a new URL. The return of this method can either be an array or a string.
If the return is an array and contains a 'url' key. You may also supply the following:
- 
statusThe status code for the redirect
- 
exitWhether or not the redirect should exit.
If your response is a string or an array that does not contain a 'url' key it will be used as the new URL to redirect to.
Parameters
-  Controller$controller
- Controller with components to beforeRedirect
-  string|array $url
- Either the string or URL array that is being redirected to.
-  integer $statusoptional null
- The status code of the redirect
-  boolean $exitoptional true
- Will the script exit.
Returns
array|nullEither an array or null.
Link
http://book.cakephp.org/2.0/en/controllers/components.html#Component::beforeRedirectbeforeRendersource public
beforeRender( Controller $controller )
Called before the Controller::beforeRender(), and before the view class is loaded, and before Controller::render()
Parameters
-  Controller$controller
- Controller with components to beforeRender
Link
http://book.cakephp.org/2.0/en/controllers/components.html#Component::beforeRenderinitializesource public
initialize( Controller $controller )
Called before the Controller::beforeFilter().
Parameters
-  Controller$controller
- Controller with components to initialize
Link
http://book.cakephp.org/2.0/en/controllers/components.html#Component::initializeshutdownsource public
shutdown( Controller $controller )
Called after Controller::render() and before the output is printed to the browser.
Parameters
-  Controller$controller
- Controller with components to shutdown
Link
http://book.cakephp.org/2.0/en/controllers/components.html#Component::shutdownstartupsource public
startup( Controller $controller )
Called after the Controller::beforeFilter() and before the controller action
Parameters
-  Controller$controller
- Controller with components to startup
Link
http://book.cakephp.org/2.0/en/controllers/components.html#Component::startupMethods inherited from Object
_mergeVarssource protected
_mergeVars( array $properties , string $class , boolean $normalize true )
Merges this objects $property with the property in $class' definition. This classes value for the property will be merged on top of $class'
This provides some of the DRY magic CakePHP provides. If you want to shut it off, redefine this method as an empty function.
Parameters
-  array $properties
- The name of the properties to merge.
-  string $class
- The class to merge the property with.
-  boolean $normalizeoptional true
- Set to true to run the properties through Hash::normalize() before merging.
_setsource protected
_set( array $properties array() )
Allows setting of multiple properties of the object in a single line of code. Will only set properties that are part of a class declaration.
Parameters
-  array $propertiesoptional array()
- An associative array containing properties and corresponding values.
_stopsource protected
_stop( integer|string $status 0 )
Stop execution of the current script. Wraps exit() making testing easier.
Parameters
-  integer|string $statusoptional 0
- see http://php.net/exit for values
dispatchMethodsource public
dispatchMethod( string $method , array $params array() )
Calls a method on this object with the given parameters. Provides an OO wrapper for call_user_func_array
Parameters
-  string $method
- Name of the method to call
-  array $paramsoptional array()
- Parameter list to use when calling $method
Returns
mixedReturns the result of the method call
logsource public
log( string $msg , integer $type LOG_ERR , null|string|array $scope null )
Convenience method to write a message to CakeLog. See CakeLog::write() for more information on writing to logs.
Parameters
-  string $msg
- Log message
-  integer $typeoptional LOG_ERR
- Error type constant. Defined in app/Config/core.php.
-  null|string|array $scopeoptional null
- The scope(s) a log message is being created in. See CakeLog::config() for more information on logging scopes.
Returns
booleanSuccess of log write
requestActionsource public
requestAction( string|array $url , array $extra array() )
Calls a controller's method from any location. Can be used to connect controllers together or tie plugins into a main application. requestAction can be used to return rendered views or fetch the return value from controller actions.
Under the hood this method uses Router::reverse() to convert the $url parameter into a string URL. You should use URL formats that are compatible with Router::reverse()
Passing POST and GET data
POST and GET data can be simulated in requestAction. Use $extra['url'] for GET data. The $extra['data'] parameter allows POST data simulation.
Parameters
-  string|array $url
- String or array-based URL. Unlike other URL arrays in CakePHP, this URL will not automatically handle passed and named arguments in the $url parameter.
-  array $extraoptional array()
- if array includes the key "return" it sets the AutoRender to true. Can also be used to submit GET/POST data, and named/passed arguments.
Returns
mixedBoolean true or false on success/failure, or contents of rendered action if 'return' is set in $extra.
toStringsource public
toString( )
Object-to-string conversion. Each class can override this method as necessary.
Returns
stringThe name of this class
Properties summary
Properties inherited from Component
$_Collectionsource
 protected ComponentCollection 
Component collection class used to lazy load components.
$_componentMapsource
protected array
A component lookup table used to lazy load component objects.
array() 
    © 2005–2016 The Cake Software Foundation, Inc.
Licensed under the MIT License.
CakePHP is a registered trademark of Cake Software Foundation, Inc.
We are not endorsed by or affiliated with CakePHP.
    http://api.cakephp.org/2.7/class-FlashComponent.html
  
