CachingFactoryDecorator

static string generateHash(mixed $value, string $namespace = '')

Generates a SHA-256 hash for the given value.

Optionally, a namespace string can be passed. Calling this method will the same values, but different namespaces, will return different hashes.

Parameters

mixed	$value	The value to hash
string	$namespace	Optional. The namespace

Return Value

string

The SHA-256 hash

__construct(ChoiceListFactoryInterface $decoratedFactory)

Parameters

ChoiceListFactoryInterface

$decoratedFactory

ChoiceListFactoryInterface getDecoratedFactory()

Returns the decorated factory.

Return Value

ChoiceListFactoryInterface

The decorated factory

ChoiceListInterface createListFromChoices(array|Traversable $choices, null|callable $value = null)

Creates a choice list for the given choices.

The choices should be passed in the values of the choices array.

Optionally, a callable can be passed for generating the choice values. The callable receives the choice as first and the array key as the second argument.

Parameters

array|Traversable	$choices	The choices
null|callable	$value	The callable generating the choice values

Return Value

ChoiceListInterface

The choice list

ChoiceListInterface createListFromFlippedChoices(array|Traversable $choices, null|callable $value = null, $triggerDeprecationNotice = true) ^deprecated

^deprecated

Added for backwards compatibility in Symfony 2.7, to be removed in Symfony 3.0.

Creates a choice list for the given choices.

The choices should be passed in the keys of the choices array. Since the choices array will be flipped, the entries of the array must be strings or integers.

Optionally, a callable can be passed for generating the choice values. The callable receives the choice as first and the array key as the second argument.

Parameters

array|Traversable	$choices	The choices
null|callable	$value	The callable generating the choice values
	$triggerDeprecationNotice

Return Value

ChoiceListInterface

The choice list

ChoiceListInterface createListFromLoader(ChoiceLoaderInterface $loader, null|callable $value = null)

Creates a choice list that is loaded with the given loader.

Optionally, a callable can be passed for generating the choice values. The callable receives the choice as first and the array key as the second argument.

Parameters

ChoiceLoaderInterface	$loader	The choice loader
null|callable	$value	The callable generating the choice values

Return Value

ChoiceListInterface

The choice list

ChoiceListView createView(ChoiceListInterface $list, null|array|callable $preferredChoices = null, null|callable $label = null, null|callable $index = null, null|callable $groupBy = null, null|array|callable $attr = null)

Creates a view for the given choice list.

Callables may be passed for all optional arguments. The callables receive the choice as first and the array key as the second argument.

• The callable for the label and the name should return the generated label/choice name.
• The callable for the preferred choices should return true or false, depending on whether the choice should be preferred or not.
• The callable for the grouping should return the group name or null if a choice should not be grouped.
• The callable for the attributes should return an array of HTML attributes that will be inserted in the tag of the choice.

If no callable is passed, the labels will be generated from the choice keys. The view indices will be generated using an incrementing integer by default.

The preferred choices can also be passed as array. Each choice that is contained in that array will be marked as preferred.

The attributes can be passed as multi-dimensional array. The keys should match the keys of the choices. The values should be arrays of HTML attributes that should be added to the respective choice.

Parameters

ChoiceListInterface	$list	The choice list
null|array|callable	$preferredChoices	The preferred choices
null|callable	$label	The callable generating the choice labels
null|callable	$index	The callable generating the view indices
null|callable	$groupBy	The callable generating the group names
null|array|callable	$attr	The callable generating the HTML attributes

Return Value

ChoiceListView

The choice list view