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.

Object
Extended by Component
Extended by FlashComponent
Package: Cake\Controller\Component
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

InternalErrorException
If missing the flash message.

__constructsource public

__construct( ComponentCollection $collection , array $settings array() )

Constructor

Parameters

ComponentCollection $collection
The ComponentCollection object
array $settings optional 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:

  • key The key to set under the session's Flash key
  • element The element used to render the flash message. Default to 'default'.
  • params An 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 $options optional 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

mixed
A 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:

  • status The status code for the redirect
  • exit Whether 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 $status optional null
The status code of the redirect
boolean $exit optional true
Will the script exit.

Returns

array|null
Either an array or null.

Link

http://book.cakephp.org/2.0/en/controllers/components.html#Component::beforeRedirect

beforeRendersource 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::beforeRender

initializesource 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::initialize

shutdownsource 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::shutdown

startupsource 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::startup

Methods 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 $normalize optional 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 $properties optional 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 $status optional 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 $params optional array()
Parameter list to use when calling $method

Returns

mixed
Returns 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 $type optional LOG_ERR
Error type constant. Defined in app/Config/core.php.
null|string|array $scope optional null
The scope(s) a log message is being created in. See CakeLog::config() for more information on logging scopes.

Returns

boolean
Success 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 $extra optional 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

mixed
Boolean 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

string
The name of this class

Properties summary

$_defaultConfigsource

protected array

Default configuration

array(
    'key' => 'flash',
    'element' => 'default',
    'params' => array(),
)

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()

$componentssource

public array

Other Components this component uses.

array()

$settingssource

public array

Settings for this Component

array()

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Licensed under the MIT License.
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http://api.cakephp.org/2.7/class-FlashComponent.html