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<?php
namespace YOOtheme\GraphQL\Executor;
use YOOtheme\GraphQL\Error\FormattedError;
/**
* Returned after [query execution](executing-queries.md).
* Represents both - result of successful execution and of a failed one
* (with errors collected in `errors` prop)
*
* Could be converted to [spec-compliant](https://facebook.github.io/graphql/#sec-Response-Format)
* serializable array using `toArray()`
*/
class ExecutionResult implements \JsonSerializable
{
/**
* Data collected from resolvers during query execution
*
* @api
* @var array
*/
public $data;
/**
* Errors registered during query execution.
*
* If an error was caused by exception thrown in resolver, $error->getPrevious() would
* contain original exception.
*
* @api
* @var \GraphQL\Error\Error[]
*/
public $errors;
/**
* User-defined serializable array of extensions included in serialized result.
* Conforms to
*
* @api
* @var array
*/
public $extensions;
/**
* @var callable
*/
private $errorFormatter;
/**
* @var callable
*/
private $errorsHandler;
/**
* @param array $data
* @param array $errors
* @param array $extensions
*/
public function __construct(array $data = null, array $errors = [], array $extensions = [])
{
$this->data = $data;
$this->errors = $errors;
$this->extensions = $extensions;
}
/**
* Define custom error formatting (must conform to http://facebook.github.io/graphql/#sec-Errors)
*
* Expected signature is: function (GraphQL\Error\Error $error): array
*
* Default formatter is "GraphQL\Error\FormattedError::createFromException"
*
* Expected returned value must be an array:
* array(
* 'message' => 'errorMessage',
* // ... other keys
* );
*
* @api
* @param callable $errorFormatter
* @return $this
*/
public function setErrorFormatter(callable $errorFormatter)
{
$this->errorFormatter = $errorFormatter;
return $this;
}
/**
* Define custom logic for error handling (filtering, logging, etc).
*
* Expected handler signature is: function (array $errors, callable $formatter): array
*
* Default handler is:
* function (array $errors, callable $formatter) {
* return array_map($formatter, $errors);
* }
*
* @api
* @param callable $handler
* @return $this
*/
public function setErrorsHandler(callable $handler)
{
$this->errorsHandler = $handler;
return $this;
}
/**
* Converts GraphQL query result to spec-compliant serializable array using provided
* errors handler and formatter.
*
* If debug argument is passed, output of error formatter is enriched which debugging information
* ("debugMessage", "trace" keys depending on flags).
*
* $debug argument must be either bool (only adds "debugMessage" to result) or sum of flags from
* GraphQL\Error\Debug
*
* @api
* @param bool|int $debug
* @return array
*/
public function toArray($debug = false)
{
$result = [];
if (!empty($this->errors)) {
$errorsHandler = $this->errorsHandler ?: function(array $errors, callable $formatter) {
return array_map($formatter, $errors);
};
$result['errors'] = $errorsHandler(
$this->errors,
FormattedError::prepareFormatter($this->errorFormatter, $debug)
);
}
if (null !== $this->data) {
$result['data'] = $this->data;
}
if (!empty($this->extensions)) {
$result['extensions'] = (array) $this->extensions;
}
return $result;
}
/**
* Part of \JsonSerializable interface
*
* @return array
*/
#[\ReturnTypeWillChange]
public function jsonSerialize()
{
return $this->toArray();
}
}