/**
* Method that retrieves list field options.
*
* @param string $listName list name
* @param string $prefix nested option prefix
* @return array
*/
private function __getListFieldOptions($listName, $prefix = null)
{
$result = [];
$listData = [];
try {
$pathFinder = new ListPathFinder();
$path = $pathFinder->find(null, $listName);
$parser = new ListParser();
$listData = $parser->parseFromPath($path);
} catch (\Exception $e) {
/* Do nothing.
*
* ListPathFinder and ListParser check for the
* file to exist and to be readable and so on,
* but here we do load lists recursively (for
* sub-lists, etc), which might result in files
* not always being there.
*
* In this particular case, it's not the end of the
* world.
*/
}
if (!empty($listData)) {
$result = $this->__prepareListOptions($listData, $listName, $prefix);
}
return $result;
}
/**
* Check if the given list is valid
*
* Lists with no items are assumed to be
* invalid.
*
* @param string $list List name to check
* @return bool True if valid, false is otherwise
*/
protected function _isValidList($list)
{
$result = false;
$listItems = [];
try {
$pathFinder = new ListPathFinder();
$path = $pathFinder->find(null, $list);
$parser = new ListParser();
$listItems = $parser->parseFromPath($path);
} catch (\Exception $e) {
// We don't care about the specifics of the failure
}
if ($listItems) {
$result = true;
}
return $result;
}
