Given an array of promises, return a promise that is fulfilled when all the
items in the array are fulfilled.
| public createPromiseAll ( mixed $promisesOrValues ) : GraphQL\Executor\Promise\Promise | ||
| $promisesOrValues | mixed | Promises or values. |
| Результат | GraphQL\Executor\Promise\Promise | equivalent to Promise.all result |
/**
* Complete a list value by completing each item in the list with the
* inner type
*
* @param ExecutionContext $exeContext
* @param ListOfType $returnType
* @param $fieldNodes
* @param ResolveInfo $info
* @param array $path
* @param $result
* @return array|Promise
* @throws \Exception
*/
private static function completeListValue(ExecutionContext $exeContext, ListOfType $returnType, $fieldNodes, ResolveInfo $info, $path, &$result)
{
$itemType = $returnType->getWrappedType();
Utils::invariant(is_array($result) || $result instanceof \Traversable, 'User Error: expected iterable, but did not find one for field ' . $info->parentType . '.' . $info->fieldName . '.');
$containsPromise = false;
$i = 0;
$completedItems = [];
foreach ($result as $item) {
$fieldPath = $path;
$fieldPath[] = $i++;
$completedItem = self::completeValueCatchingError($exeContext, $itemType, $fieldNodes, $info, $fieldPath, $item);
if (!$containsPromise && self::$promiseAdapter->isPromise($completedItem)) {
$containsPromise = true;
}
$completedItems[] = $completedItem;
}
return $containsPromise ? self::$promiseAdapter->createPromiseAll($completedItems) : $completedItems;
}
