Class FlashHelper

implementedEventssource public

implementedEvents( )

Event listeners.

Returns

array
array

Overrides

Cake\View\Helper::implementedEvents()

rendersource public

render( string $key 'flash' , array $options [] )

Used to render the message set in FlashComponent::set()

In your view: $this->Flash->render('somekey'); Will default to flash if no param is passed

You can pass additional information into the flash message generation. This allows you to consolidate all the parameters for a given type of flash message into the view.

echo $this->Flash->render('flash', ['params' => ['name' => $user['User']['name']]]);

This would pass the current user's name into the flash message, so you could create personalized messages without the controller needing access to that data.

Lastly you can choose the element that is used for rendering the flash message. Using custom elements allows you to fully customize how flash messages are generated.

echo $this->Flash->render('flash', ['element' => 'my_custom_element']);

If you want to use an element from a plugin for rendering your flash message you can use the dot notation for the plugin's element name:

echo $this->Flash->render('flash', [
  'element' => 'MyPlugin.my_custom_element',
]);

If you have several messages stored in the Session, each message will be rendered in its own element.

Parameters

string $key optional 'flash'

The [Flash.]key you are rendering in the view.

array $options optional []

Additional options to use for the creation of this flash message. Supports the 'params', and 'element' keys that are used in the helper.

Returns

string|null
Rendered flash message or null if flash key does not exist in session.

Throws

UnexpectedValueException
If value for flash settings key is not an array.

__callsource public

__call( string $method , array $params )

Provide non fatal errors on missing method calls.

Parameters

string $method

Method to invoke

array $params

Array of params for the method.

__constructsource public

__construct( Cake\View\View $View , array $config [] )

Default Constructor

Parameters

Cake\View\View $View

The View this helper is being attached to.

array $config optional []

Configuration settings for the helper.

__debugInfosource public

__debugInfo( )

Returns an array that can be used to describe the internal state of this object.

Returns

array
array

__getsource public

__get( string $name )

Lazy loads helpers.

Parameters

string $name

Name of the property being accessed.

Returns

Cake\View\Helper|null
Helper instance if helper with provided name exists

_confirmsource protected

_confirm( string $message , string $okCode , string $cancelCode '' , array $options [] )

Returns a string to be used as onclick handler for confirm dialogs.

Parameters

string $message

Message to be displayed

string $okCode

Code to be executed after user chose 'OK'

string $cancelCode optional ''

Code to be executed after user chose 'Cancel'

array $options optional []

Array of options

Returns

string
onclick JS code

addClasssource public

addClass( array $options [] , string $class null , string $key 'class' )

Adds the given class to the element options

Parameters

array $options optional []

Array options/attributes to add a class to

string $class optional null

The class name being added.

string $key optional 'class'

the key to use for class.

Returns

array
Array of options with $key set.

_configDeletesource protected

_configDelete( string $key )

Delete a single config key

Parameters

string $key

Key to delete.

Throws

Cake\Core\Exception\Exception
if attempting to clobber existing config

_configReadsource protected

_configRead( string|null $key )

Read a config variable

Parameters

string|null $key

Key to read.

Returns

mixed
mixed

_configWritesource protected

_configWrite( string|array $key , mixed $value , boolean|string $merge false )

Write a config variable

Parameters

string|array $key

Key to write to.

mixed $value

Value to write.

boolean|string $merge optional false

True to merge recursively, 'shallow' for simple merge, false to overwrite, defaults to false.

Throws

Cake\Core\Exception\Exception
if attempting to clobber existing config

configsource public

config( string|array|null $key null , mixed|null $value null , boolean $merge true )

Usage

Reading the whole config:

$this->config();

Reading a specific value:

$this->config('key');

Reading a nested value:

$this->config('some.nested.key');

Setting a specific value:

$this->config('key', $value);

Setting a nested value:

$this->config('some.nested.key', $value);

Updating multiple config settings at the same time:

$this->config(['one' => 'value', 'another' => 'value']);

Parameters

string|array|null $key optional null

The key to get/set, or a complete array of configs.

mixed|null $value optional null

The value to set.

boolean $merge optional true

Whether to recursively merge or overwrite existing config, defaults to true.

Returns

mixed
Config value being read, or the object itself on write operations.

Throws

Cake\Core\Exception\Exception
When trying to set a key that is invalid.

configShallowsource public

configShallow( string|array $key , mixed|null $value null )

Merge provided config with existing config. Unlike config() which does a recursive merge for nested keys, this method does a simple merge.

Setting a specific value:

$this->config('key', $value);

Setting a nested value:

$this->config('some.nested.key', $value);

Updating multiple config settings at the same time:

$this->config(['one' => 'value', 'another' => 'value']);

Parameters

string|array $key

The key to set, or a complete array of configs.

mixed|null $value optional null

The value to set.

Returns

mixed
$this The object itself.

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