add carbon lib for date operations

2015-02-08 11:23:14 +00:00
parent eee7c668cc
commit 9ed7f6ff7c
6 changed files with 185 additions and 34 deletions
--- a/src/Serializer/Handler/CarbonHandler.php
+++ b/src/Serializer/Handler/CarbonHandler.php
@@ -0,0 +1,108 @@
+<?php
+
+namespace DavidBadura\Taskwarrior\Serializer\Handler;
+
+use Carbon\Carbon;
+use JMS\Serializer\Context;
+use JMS\Serializer\Exception\RuntimeException;
+use JMS\Serializer\GraphNavigator;
+use JMS\Serializer\Handler\SubscribingHandlerInterface;
+use JMS\Serializer\VisitorInterface;
+
+/**
+ * @author David Badura <d.a.badura@gmail.com>
+ */
+class CarbonHandler implements SubscribingHandlerInterface
+{
+    /**
+     * @var string
+     */
+    private $defaultFormat;
+
+    /**
+     * @var \DateTimeZone
+     */
+    private $defaultTimezone;
+
+    /**
+     * @param string $defaultFormat
+     * @param string $defaultTimezone
+     */
+    public function __construct($defaultFormat = 'Ymd\THis\Z', $defaultTimezone = 'UTC')
+    {
+        $this->defaultFormat   = $defaultFormat;
+        $this->defaultTimezone = new \DateTimeZone($defaultTimezone);
+    }
+
+    /**
+     * @return array
+     */
+    public static function getSubscribingMethods()
+    {
+        $methods = array();
+        $types   = array('Carbon\Carbon', 'Carbon');
+
+        foreach ($types as $type) {
+            $methods[] = array(
+                'type'      => $type,
+                'format'    => 'json',
+                'direction' => GraphNavigator::DIRECTION_DESERIALIZATION,
+                'method'    => 'deserializeCarbon'
+            );
+
+            $methods[] = array(
+                'type'      => $type,
+                'format'    => 'json',
+                'direction' => GraphNavigator::DIRECTION_SERIALIZATION,
+                'method'    => 'serializeCarbon'
+            );
+        }
+
+        return $methods;
+    }
+
+    /**
+     * @param VisitorInterface $visitor
+     * @param Carbon $date
+     * @param array $type
+     * @param Context $context
+     * @return string
+     */
+    public function serializeCarbon(VisitorInterface $visitor, Carbon $date, array $type, Context $context)
+    {
+        return $visitor->visitString($date->format($this->getFormat($type)), $type, $context);
+    }
+
+    /**
+     * @param VisitorInterface $visitor
+     * @param string $data
+     * @param array $type
+     * @return \DateTime|null
+     */
+    public function deserializeCarbon(VisitorInterface $visitor, $data, array $type)
+    {
+        if (null === $data) {
+            return null;
+        }
+
+        $timezone = isset($type['params'][1]) ? new \DateTimeZone($type['params'][1]) : $this->defaultTimezone;
+        $format   = $this->getFormat($type);
+
+        $datetime = Carbon::createFromFormat($format, (string)$data, $timezone);
+
+        if (false === $datetime) {
+            throw new RuntimeException(sprintf('Invalid datetime "%s", expected format %s.', $data, $format));
+        }
+
+        return $datetime;
+    }
+
+    /**
+     * @param array $type
+     * @return string
+     */
+    private function getFormat(array $type)
+    {
+        return isset($type['params'][0]) ? $type['params'][0] : $this->defaultFormat;
+    }
+}