class FormExtension extends Twig_Extension implements Twig_Extension_InitRuntimeInterface

FormExtension extends Twig with form capabilities.

Properties

TwigRendererInterface $renderer This property is public so that it can be accessed directly from compiled templates without having to call a getter, which slightly decreases performance.

Methods

__construct(TwigRendererInterface $renderer)

No description

initRuntime(Twig_Environment $environment)

{@inheritdoc}

getTokenParsers()

{@inheritdoc}

getFunctions()

{@inheritdoc}

getFilters()

{@inheritdoc}

getTests()

{@inheritdoc}

renderCsrfToken($tokenId)

{@inheritdoc}

string
humanize(string $text)

Makes a technical name human readable.

bool
isSelectedChoice(ChoiceView $choice, string|array $selectedValue)

Returns whether a choice is selected for a given form value.

getName()

{@inheritdoc}

Details

at line line 34
__construct(TwigRendererInterface $renderer)

Parameters

TwigRendererInterface $renderer

at line line 42
initRuntime(Twig_Environment $environment)

{@inheritdoc}

Parameters

Twig_Environment $environment

at line line 50
getTokenParsers()

{@inheritdoc}

at line line 61
getFunctions()

{@inheritdoc}

at line line 79
getFilters()

{@inheritdoc}

at line line 89
getTests()

{@inheritdoc}

at line line 99
renderCsrfToken($tokenId)

{@inheritdoc}

Parameters

$tokenId

at line line 111
string humanize(string $text)

Makes a technical name human readable.

Parameters

string $text The text to humanize.

Return Value

string The humanized text.

at line line 139
bool isSelectedChoice(ChoiceView $choice, string|array $selectedValue)

Returns whether a choice is selected for a given form value.

Unfortunately Twig does not support an efficient way to execute the "is_selected" closure passed to the template by ChoiceType. It is faster to implement the logic here (around 65ms for a specific form).

Directly implementing the logic here is also faster than doing so in ChoiceView (around 30ms).

The worst option tested so far is to implement the logic in ChoiceView and access the ChoiceView method directly in the template. Doing so is around 220ms slower than doing the method call here in the filter. Twig seems to be much more efficient at executing filters than at executing methods of an object.

Parameters

ChoiceView $choice The choice to check.
string|array $selectedValue The selected value to compare.

Return Value

bool Whether the choice is selected.

See also

ChoiceView::isSelected()

at line line 151
getName()

{@inheritdoc}