function TemporaryQueryGuard::buildTree

Copied from \Drupal\jsonapi\IncludeResolver.

See also

\Drupal\jsonapi\IncludeResolver::buildTree()

File

core/modules/jsonapi/src/Access/TemporaryQueryGuard.php, line 589

Class

TemporaryQueryGuard

Adds sufficient access control to collection queries.

Namespace

Code

protected static function buildTree(array $paths) {
    $merged = [];
    foreach ($paths as $parts) {
        // This complex expression is needed to handle the string, "0", which
        // would be evaluated as FALSE.
        if (!is_null($field_name = array_shift($parts))) {
            $previous = $merged[$field_name] ?? [];
            $merged[$field_name] = array_merge($previous, [
                $parts,
            ]);
        }
    }
    return !empty($merged) ? array_map([
        static::class,
        __FUNCTION__,
    ], $merged) : $merged;
}