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Help the developer when they specify an invalid filter by providing some alternatives

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This commit is contained in:
Jonathan Ingram
2011-12-05 11:01:25 +11:00
parent 6e3a1c4016
commit f880bab988
1 changed files with 16 additions and 1 deletions
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lib/Twig/Node/Expression/Filter.php
+16 -1
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@@ -19,8 +19,23 @@ class Twig_Node_Expression_Filter extends Twig_Node_Expression
public function compile(Twig_Compiler $compiler)
{
$name = $this->getNode('filter')->getAttribute('value');
if (false === $filter = $compiler->getEnvironment()->getFilter($name)) {
throw new Twig_Error_Syntax(sprintf('The filter "%s" does not exist', $name), $this->getLine());
$alternativeFilters = array();
foreach ($compiler->getEnvironment()->getFilters() as $filterName => $filter) {
if (false !== strpos($filterName, $name)) {
$alternativeFilters[] = $filterName;
}
}
$exceptionMessage = sprintf('The filter "%s" does not exist', $name);
if (count($alternativeFilters)) {
$exceptionMessage = sprintf('%s. Did you mean "%s"?', $exceptionMessage, implode('", "', $alternativeFilters));
}
throw new Twig_Error_Syntax($exceptionMessage, $this->getLine());
}
$this->compileFilter($compiler, $filter);