Viewing file:  SearchAndRenderBlockNode.php (4.39 KB) -rw-r--r--
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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Bridge\Twig\Node;
/**
* @author Bernhard Schussek <bschussek@gmail.com>
*/
class SearchAndRenderBlockNode extends \Twig_Node_Expression_Function
{
public function compile(\Twig_Compiler $compiler)
{
$compiler->addDebugInfo($this);
$compiler->raw('$this->env->getExtension(\'form\')->renderer->searchAndRenderBlock(');
preg_match('/_([^_]+)$/', $this->getAttribute('name'), $matches);
$label = null;
$arguments = iterator_to_array($this->getNode('arguments'));
$blockNameSuffix = $matches[1];
if (isset($arguments[0])) {
$compiler->subcompile($arguments[0]);
$compiler->raw(', \''.$blockNameSuffix.'\'');
if (isset($arguments[1])) {
if ('label' === $blockNameSuffix) {
// The "label" function expects the label in the second and
// the variables in the third argument
$label = $arguments[1];
$variables = isset($arguments[2]) ? $arguments[2] : null;
$lineno = $label->getLine();
if ($label instanceof \Twig_Node_Expression_Constant) {
// If the label argument is given as a constant, we can either
// strip it away if it is empty, or integrate it into the array
// of variables at compile time.
$labelIsExpression = false;
// Only insert the label into the array if it is not empty
if (!twig_test_empty($label->getAttribute('value'))) {
$originalVariables = $variables;
$variables = new \Twig_Node_Expression_Array(array(), $lineno);
$labelKey = new \Twig_Node_Expression_Constant('label', $lineno);
if (null !== $originalVariables) {
foreach ($originalVariables->getKeyValuePairs() as $pair) {
// Don't copy the original label attribute over if it exists
if ((string) $labelKey !== (string) $pair['key']) {
$variables->addElement($pair['value'], $pair['key']);
}
}
}
// Insert the label argument into the array
$variables->addElement($label, $labelKey);
}
} else {
// The label argument is not a constant, but some kind of
// expression. This expression needs to be evaluated at runtime.
// Depending on the result (whether it is null or not), the
// label in the arguments should take precedence over the label
// in the attributes or not.
$labelIsExpression = true;
}
} else {
// All other functions than "label" expect the variables
// in the second argument
$label = null;
$variables = $arguments[1];
$labelIsExpression = false;
}
if (null !== $variables || $labelIsExpression) {
$compiler->raw(', ');
if (null !== $variables) {
$compiler->subcompile($variables);
}
if ($labelIsExpression) {
if (null !== $variables) {
$compiler->raw(' + ');
}
// Check at runtime whether the label is empty.
// If not, add it to the array at runtime.
$compiler->raw('(twig_test_empty($_label_ = ');
$compiler->subcompile($label);
$compiler->raw(') ? array() : array("label" => $_label_))');
}
}
}
}
$compiler->raw(")");
}
}
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