feat DateTime field

GraphQL/Type/Definition/DateTimeType.php

@@ -0,0 +1,90 @@
+<?php
+
+/*
+ * This file is part of EC-CUBE
+ *
+ * Copyright(c) EC-CUBE CO.,LTD. All Rights Reserved.
+ *
+ * http://www.ec-cube.co.jp/
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Plugin\Api\GraphQL\Type\Definition;
+
+use DateTime;
+use DateTimeImmutable;
+use DateTimeInterface;
+use GraphQL\Error\Error;
+use GraphQL\Language\AST\Node;
+use GraphQL\Language\AST\StringValueNode;
+use GraphQL\Type\Definition\ScalarType;
+use GraphQL\Utils\Utils;
+
+class DateTimeType extends ScalarType
+{
+    private static $DateTimeType;
+
+    /**
+     * @var string
+     */
+    public $name = 'DateTime';
+
+    /**
+     * @var string
+     */
+    public $description = 'The `DateTime` scalar type represents time data, represented as an ISO-8601 encoded UTC date string.';
+
+    /**
+     * @param mixed $value
+     *
+     * @return string
+     *
+     * @throws Error
+     */
+    public function serialize($value)
+    {
+        if (!$value instanceof DateTimeInterface) {
+            throw new Error('DateTime is not an instance of DateTimeInterface: '.Utils::printSafe($value));
+        }
+
+        return $value->format(DateTime::ATOM);
+    }
+
+    /**
+     * @param mixed $value
+     *
+     * @return DateTimeImmutable|false|null
+     */
+    public function parseValue($value)
+    {
+        return DateTimeImmutable::createFromFormat(DateTime::ATOM, $value) ?: null;
+    }
+
+    /**
+     * @param Node $valueNode
+     *
+     * @return string|null
+     */
+    public function parseLiteral($valueNode, ?array $variables = null)
+    {
+        if ($valueNode instanceof StringValueNode) {
+            return $valueNode->value;
+        }
+
+        return null;
+    }
+
+    /**
+     * @api
+     */
+    public static function DateTime(): ScalarType
+    {
+        if (static::$DateTimeType === null) {
+            static::$DateTimeType = new DateTimeType();
+        }
+
+        return static::$DateTimeType;
+    }
+}

GraphQL/Types.php

@@ -17,6 +17,7 @@
 use Doctrine\ORM\Mapping\ClassMetadata;
 use GraphQL\Type\Definition\ObjectType;
 use GraphQL\Type\Definition\Type;
+use Plugin\Api\GraphQL\Type\Definition\DateTimeType;
 
 /**
  * DoctrineのEntityからGraphQLのObjectTypeを変換するクラス.
@@ -108,7 +109,7 @@ private function convertFieldMappingToType($fieldMapping)
             'text' => Type::string(),
             'integer' => Type::int(),
             'decimal' => Type::float(),
-            'datetimetz' => Type::int(),
+            'datetimetz' => DateTimeType::DateTime(),
             'smallint' => Type::int(),
             'boolean' => Type::boolean(),
         ][$fieldMapping['type']];