[英]Twig: Use “Ignore Missing” on Include by default
With Twig I am using {% include %}
a lot. 使用Twig我经常使用
{% include %}
。 I need to attach ignore missing
to every include, since I do not want to run into an Exception when a file is not found. 我需要将
ignore missing
附加到每个包含,因为我不希望在找不到文件时遇到异常。 This bloats the template code a lot and I am looking for an option to attach ignore default
to all includes by default without repeating it with every include call. 这会使模板代码膨胀很多,我正在寻找一个选项,
ignore default
将ignore default
附加到所有包含,而不会在每次包含调用时重复它。 I am looking for an equivalent of php's include in Twig since Twig's own include behaves like php's require. 我正在寻找一个相当于PHP的包含在Twig,因为Twig自己的包含行为像PHP的要求。
How can I include templates in Twig without having Exceptions thrown when a file is not found and without adding ignore missing
to every single include? 如何在Twig中包含模板,而不会在找不到文件时抛出异常,并且不会在每个包含中添加
ignore missing
?
I was looking for a config in Twig but did not find an option. 我在Twig寻找配置,但没有找到一个选项。
by over-riding built-in include 通过内置的覆盖包括
class TokenParser_Include extends Twig_TokenParser
{
public function parse(Twig_Token $token)
{
$expr = $this->parser->getExpressionParser()->parseExpression();
list($variables, $only, $ignoreMissing) = $this->parseArguments();
return new Twig_Node_Include($expr, $variables, $only, $ignoreMissing = true, $token->getLine(), $this->getTag());
}
protected function parseArguments()
{
$stream = $this->parser->getStream();
$ignoreMissing = false;
if ($stream->nextIf(Twig_Token::NAME_TYPE, 'ignore')) {
$stream->expect(Twig_Token::NAME_TYPE, 'missing');
$ignoreMissing = true;
}
$variables = null;
if ($stream->nextIf(Twig_Token::NAME_TYPE, 'with')) {
$variables = $this->parser->getExpressionParser()->parseExpression();
}
$only = false;
if ($stream->nextIf(Twig_Token::NAME_TYPE, 'only')) {
$only = true;
}
$stream->expect(Twig_Token::BLOCK_END_TYPE);
return array($variables, $only, $ignoreMissing);
}
public function getTag()
{
return 'include';
}
}
$twig->addTokenParser(new TokenParser_Include());
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