twig implementation

1 files changed, 82 insertions, 0 deletions

diff --git a/vendor/symfony/form/Symfony/Component/Form/Extension/Core/DataTransformer/DateTimeToRfc3339Transformer.php b/vendor/symfony/form/Symfony/Component/Form/Extension/Core/DataTransformer/DateTimeToRfc3339Transformer.php
new file mode 100644
index 00000000..0eb07422
--- /dev/null
+++ b/vendor/symfony/form/Symfony/Component/Form/Extension/Core/DataTransformer/DateTimeToRfc3339Transformer.php
@@ -0,0 +1,82 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Form\Extension\Core\DataTransformer;
+
+use Symfony\Component\Form\Exception\TransformationFailedException;
+
+/**
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+class DateTimeToRfc3339Transformer extends BaseDateTimeTransformer
+{
+    /**
+     * {@inheritDoc}
+     */
+    public function transform($dateTime)
+    {
+        if (null === $dateTime) {
+            return '';
+        }
+
+        if (!$dateTime instanceof \DateTime) {
+            throw new TransformationFailedException('Expected a \DateTime.');
+        }
+
+        if ($this->inputTimezone !== $this->outputTimezone) {
+            $dateTime = clone $dateTime;
+            $dateTime->setTimezone(new \DateTimeZone($this->outputTimezone));
+        }
+
+        return preg_replace('/\+00:00$/', 'Z', $dateTime->format('c'));
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function reverseTransform($rfc3339)
+    {
+        if (!is_string($rfc3339)) {
+            throw new TransformationFailedException('Expected a string.');
+        }
+
+        if ('' === $rfc3339) {
+            return null;
+        }
+
+        try {
+            $dateTime = new \DateTime($rfc3339);
+        } catch (\Exception $e) {
+            throw new TransformationFailedException($e->getMessage(), $e->getCode(), $e);
+        }
+
+        if ($this->outputTimezone !== $this->inputTimezone) {
+            try {
+                $dateTime->setTimezone(new \DateTimeZone($this->inputTimezone));
+            } catch (\Exception $e) {
+                throw new TransformationFailedException($e->getMessage(), $e->getCode(), $e);
+            }
+        }
+
+        if (preg_match('/(\d{4})-(\d{2})-(\d{2})/', $rfc3339, $matches)) {
+            if (!checkdate($matches[2], $matches[3], $matches[1])) {
+                throw new TransformationFailedException(sprintf(
+                    'The date "%s-%s-%s" is not a valid date.',
+                    $matches[1],
+                    $matches[2],
+                    $matches[3]
+                ));
+            }
+        }
+
+        return $dateTime;
+    }
+}