Inheritance diagram for TYPO3\CMS\Fluid\Core\ViewHelper\AbstractConditionViewHelper:

Public Member Functions
	setChildNodes (array $childNodes)

	__construct ()

	compile ($argumentsVariableName, $renderChildrenClosureVariableName, &$initializationPhpCode, \TYPO3\CMS\Fluid\Core\Parser\SyntaxTree\AbstractNode $syntaxTreeNode, \TYPO3\CMS\Fluid\Core\Compiler\TemplateCompiler $templateCompiler)

Public Member Functions inherited from TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper
	setArguments (array $arguments)

	setRenderingContext (\TYPO3\CMS\Fluid\Core\Rendering\RenderingContextInterface $renderingContext)

	injectReflectionService (\TYPO3\CMS\Extbase\Reflection\ReflectionService $reflectionService)

	isEscapingInterceptorEnabled ()

	setViewHelperNode (\TYPO3\CMS\Fluid\Core\Parser\SyntaxTree\ViewHelperNode $node)

	setRenderChildrenClosure (\Closure $renderChildrenClosure)

	initializeArgumentsAndRender ()

	initialize ()

	renderChildren ()

	prepareArguments ()

	validateArguments ()

	initializeArguments ()

	compile ($argumentsVariableName, $renderChildrenClosureVariableName, &$initializationPhpCode, \TYPO3\CMS\Fluid\Core\Parser\SyntaxTree\AbstractNode $syntaxTreeNode, \TYPO3\CMS\Fluid\Core\Compiler\TemplateCompiler $templateCompiler)

	resetState ()

Protected Member Functions
	renderThenChild ()

	renderElseChild ()

Protected Member Functions inherited from TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper
	registerArgument ($name, $type, $description, $required=FALSE, $defaultValue=NULL)

	overrideArgument ($name, $type, $description, $required=FALSE, $defaultValue=NULL)

	callRenderMethod ()

	buildRenderChildrenClosure ()

	hasArgument ($argumentName)

Private Attributes
	$childNodes = array()

Additional Inherited Members
Static Public Member Functions inherited from TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper
static	renderStatic (array $arguments, \Closure $renderChildrenClosure, \TYPO3\CMS\Fluid\Core\Rendering\RenderingContextInterface $renderingContext)

Static Public Member Functions inherited from TYPO3\CMS\Fluid\Core\ViewHelper\Facets\CompilableInterface
static	renderStatic (array $arguments, \Closure $renderChildrenClosure, \TYPO3\CMS\Fluid\Core\Rendering\RenderingContextInterface $renderingContext)

Protected Attributes inherited from TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper
	$arguments

	$templateVariableContainer

	$controllerContext

	$renderingContext

	$renderChildrenClosure = NULL

	$viewHelperVariableContainer

	$objectManager

	$escapingInterceptorEnabled = TRUE

Detailed Description

This view helper is an abstract ViewHelper which implements an if/else condition.

See also: TYPO3::convertArgumentValue() to find see how boolean arguments are evaluated

= Usage =

To create a custom Condition ViewHelper, you need to subclass this class, and implement your own render() method. Inside there, you should call $this->renderThenChild() if the condition evaluated to TRUE, and $this->renderElseChild() if the condition evaluated to FALSE.

Every Condition ViewHelper has a "then" and "else" argument, so it can be used like: <[aConditionViewHelperName] .... then="condition true" else="condition false" />, or as well use the "then" and "else" child nodes.

See also: TYPO3 for a more detailed explanation and a simple usage example. Make sure to NOT OVERRIDE the constructor.

Definition at line 34 of file AbstractConditionViewHelper.php.

Constructor & Destructor Documentation

◆ __construct()

TYPO3\CMS\Fluid\Core\ViewHelper\AbstractConditionViewHelper::__construct ( )

Initializes the "then" and "else" arguments

Definition at line 56 of file AbstractConditionViewHelper.php.

References TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper\registerArgument().

Member Function Documentation

◆ compile()

TYPO3\CMS\Fluid\Core\ViewHelper\AbstractConditionViewHelper::compile	(		$argumentsVariableName,
			$renderChildrenClosureVariableName,
		&	$initializationPhpCode,
		\TYPO3\CMS\Fluid\Core\Parser\SyntaxTree\AbstractNode	$syntaxTreeNode,
		\TYPO3\CMS\Fluid\Core\Compiler\TemplateCompiler	$templateCompiler
	)

The compiled ViewHelper adds two new ViewHelper arguments: __thenClosure and __elseClosure. These contain closures which are be executed to render the then(), respectively else() case.

Parameters

string	$argumentsVariableName
string	$renderChildrenClosureVariableName
string	$initializationPhpCode
\TYPO3\CMS\Fluid\Core\Parser\SyntaxTree\AbstractNode	$syntaxTreeNode
\TYPO3\CMS\Fluid\Core\Compiler\TemplateCompiler	$templateCompiler

Returns: string

Implements TYPO3\CMS\Fluid\Core\ViewHelper\Facets\CompilableInterface.

Definition at line 138 of file AbstractConditionViewHelper.php.

◆ renderElseChild()

TYPO3\CMS\Fluid\Core\ViewHelper\AbstractConditionViewHelper::renderElseChild ( )

protected

Returns value of "else" attribute. If else attribute is not set, iterates through child nodes and renders ElseViewHelper. If else attribute is not set and no ElseViewHelper is found, an empty string will be returned.

Returns: string rendered ElseViewHelper or an empty string if no ThenViewHelper was found

Definition at line 108 of file AbstractConditionViewHelper.php.

References TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper\hasArgument().

Referenced by TYPO3\CMS\Documentation\ViewHelpers\Be\Security\IfAdminViewHelper\render(), TYPO3\CMS\Fluid\ViewHelpers\Be\Security\IfAuthenticatedViewHelper\render(), TYPO3\CMS\Fluid\ViewHelpers\Security\IfAuthenticatedViewHelper\render(), TYPO3\CMS\Fluid\ViewHelpers\Be\Security\IfHasRoleViewHelper\render(), TYPO3\CMS\Fluid\ViewHelpers\Security\IfHasRoleViewHelper\render(), and TYPO3\CMS\Fluid\ViewHelpers\IfViewHelper\render().

◆ renderThenChild()

TYPO3\CMS\Fluid\Core\ViewHelper\AbstractConditionViewHelper::renderThenChild ( )

protected

Returns value of "then" attribute. If then attribute is not set, iterates through child nodes and renders ThenViewHelper. If then attribute is not set and no ThenViewHelper and no ElseViewHelper is found, all child nodes are rendered