TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithContentArgumentAndRenderStatic

Complexity

Total Complexity

9

Size/Duplication

Total Lines	118
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	1

Importance

Changes	3
Bugs	0	Features	0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	render()	0	8	1
A	buildRenderChildrenClosure()	0	16	3
A	resolveContentArgumentName()	0	17	4
B	compile()	0	28	1

<?php
namespace TYPO3Fluid\Fluid\Core\ViewHelper\Traits;

use TYPO3Fluid\Fluid\Core\Compiler\TemplateCompiler;
use TYPO3Fluid\Fluid\Core\Compiler\ViewHelperCompiler;
use TYPO3Fluid\Fluid\Core\Exception;
use TYPO3Fluid\Fluid\Core\Parser\SyntaxTree\ViewHelperNode;
use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;

/**
 * Class CompilableWithContentArgumentAndRenderStatic
 *
 * Provides default methods for rendering and compiling
 * any ViewHelper that conforms to the `renderStatic`
 * method pattern but has the added common use case that
 * an argument value must be checked and used instead of
 * the normal render children closure, if that named
 * argument is specified and not empty.
 */
trait CompileWithContentArgumentAndRenderStatic
{
    /**
     * Name of variable that contains the value to use
     * instead of render children closure, if specified.
     * If no name is provided here, the first variable
     * registered in `initializeArguments` of the ViewHelper
     * will be used.
     *
     * Note: it is significantly better practice to define
     * this property in your ViewHelper class and so fix it
     * to one particular argument instead of resolving,
     * especially when your ViewHelper is called multiple
     * times within an uncompiled template!
     *
     * @var string
     */
    protected $contentArgumentName;

    /**
     * Default render method to render ViewHelper with
     * first defined optional argument as content.
     *
     * @return string Rendered string
     * @api
     */
    public function render()
    {
        return static::renderStatic(

The method renderStatic() does not exist on TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithContentArgumentAndRenderStatic. Did you maybe mean render()?

            $this->arguments,

The property arguments does not exist. Did you maybe forget to declare it?

            $this->buildRenderChildrenClosure(),
            $this->renderingContext

The property renderingContext does not exist. Did you maybe forget to declare it?

        );
    }

    /**
     * @param string $argumentsName
     * @param string $closureName
     * @param string $initializationPhpCode
     * @param ViewHelperNode $node
     * @param TemplateCompiler $compiler
     * @return string
     */
    public function compile(
        $argumentsName,
        $closureName,
        &$initializationPhpCode,
        ViewHelperNode $node,

The parameter $node is not used and could be removed.

        TemplateCompiler $compiler

The parameter $compiler is not used and could be removed.

    ) {
        list ($initialization, $execution) = ViewHelperCompiler::getInstance()->compileWithCallToStaticMethod(
            $this,
            $argumentsName,
            $closureName,
            ViewHelperCompiler::RENDER_STATIC,
            static::class
        );
        $contentArgumentName = $this->resolveContentArgumentName();
        $initializationPhpCode .= sprintf(
            '%s = %s[\'%s\'] ? function() use (%s) { return %s[\'%s\']; } : %s;',
            $closureName,
            $argumentsName,
            $contentArgumentName,
            $argumentsName,
            $argumentsName,
            $contentArgumentName,
            $closureName
        );
        $initializationPhpCode .= $initialization;
        return $execution;
    }

    /**
     * Helper which is mostly needed when calling renderStatic() from within
     * render().
     *
     * No public API yet.
     *
     * @return \Closure
     */
    protected function buildRenderChildrenClosure()
    {
        $argumentName = $this->resolveContentArgumentName();
        $arguments = $this->arguments;
        if (!empty($argumentName) && isset($arguments[$argumentName])) {
            $renderChildrenClosure = function () use ($arguments, $argumentName) {
                return $arguments[$argumentName];
            };
        } else {
            $self = clone $this;
            $renderChildrenClosure = function () use ($self) {
                return $self->renderChildren();

The method renderChildren() does not exist on TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithContentArgumentAndRenderStatic. Did you maybe mean render()?

            };
        }
        return $renderChildrenClosure;
    }

    /**
     * @return string
     */
    protected function resolveContentArgumentName()
    {
        if (empty($this->contentArgumentName)) {
            $registeredArguments = call_user_func_array([$this, 'prepareArguments'], []);
            foreach ($registeredArguments as $registeredArgument) {
                if (!$registeredArgument->isRequired()) {
                    $this->contentArgumentName = $registeredArgument->getName();
                    return $this->contentArgumentName;
                }
            }
            throw new Exception(
                'Attempting to compile %s failed. Chosen compile method requires that ViewHelper has ' .
                'at least one registered and optional argument'
            );
        }
        return $this->contentArgumentName;
    }
}