*
*
* Displayed only if the JSON decode worked. Much more code and many more
* ViewHelpers can go here. Now, imagine that this block spans so much code
* that potentially there could come an Exception from many additional places
* (for example from Widgets) and you cannot be sure where the Exception comes
* from but still want to tell the user what exactly went wrong and provide
* an error code which makes sense to send to developers if problems persist:
*
*
* Error in "{exception.trace.0.class
* -> v:iterator.explode(glue: '_')
* -> v:iterator.pop()
* -> v:format.replace(substring: 'ViewHelper', replacement: ''}"
* {exception.code}
*
*
*
* {exception.message}
*
*
*
* Value: ``{exception.trace.0.args.0}´´
*
*
*
*
* ```
*
* ...or if you want a shorter version...
*
* ```
*
* {v:try(then: '{badObject -> v:format.json.encode()}', else: '{"validJson": "validValue"')}
*
* ```
*/
class TryViewHelper extends AbstractConditionViewHelper
{
use TemplateVariableViewHelperTrait;
/**
* @return mixed
*/
public function render()
{
try {
$content = $this->renderChildren();
} catch (\Exception $error) {
$this->renderingContext->getVariableProvider()->add('exception', $error);
$content = $this->renderElseChild();
$this->renderingContext->getVariableProvider()->remove('exception');
}
return $content;
}
}