1 files changed, 86 insertions, 0 deletions

diff --git a/vendor/symfony/form/Symfony/Component/Form/Extension/Core/DataTransformer/DataTransformerChain.php b/vendor/symfony/form/Symfony/Component/Form/Extension/Core/DataTransformer/DataTransformerChain.php
new file mode 100644
index 00000000..9cc185e1
--- /dev/null
+++ b/vendor/symfony/form/Symfony/Component/Form/Extension/Core/DataTransformer/DataTransformerChain.php
@@ -0,0 +1,86 @@
+<?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\DataTransformerInterface;
+use Symfony\Component\Form\Exception\TransformationFailedException;
+
+/**
+ * Passes a value through multiple value transformers
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+class DataTransformerChain implements DataTransformerInterface
+{
+    /**
+     * The value transformers
+     * @var DataTransformerInterface[]
+     */
+    protected $transformers;
+
+    /**
+     * Uses the given value transformers to transform values
+     *
+     * @param array $transformers
+     */
+    public function __construct(array $transformers)
+    {
+        $this->transformers = $transformers;
+    }
+
+    /**
+     * Passes the value through the transform() method of all nested transformers
+     *
+     * The transformers receive the value in the same order as they were passed
+     * to the constructor. Each transformer receives the result of the previous
+     * transformer as input. The output of the last transformer is returned
+     * by this method.
+     *
+     * @param mixed $value The original value
+     *
+     * @return mixed The transformed value
+     *
+     * @throws TransformationFailedException
+     */
+    public function transform($value)
+    {
+        foreach ($this->transformers as $transformer) {
+            $value = $transformer->transform($value);
+        }
+
+        return $value;
+    }
+
+    /**
+     * Passes the value through the reverseTransform() method of all nested
+     * transformers
+     *
+     * The transformers receive the value in the reverse order as they were passed
+     * to the constructor. Each transformer receives the result of the previous
+     * transformer as input. The output of the last transformer is returned
+     * by this method.
+     *
+     * @param mixed $value The transformed value
+     *
+     * @return mixed The reverse-transformed value
+     *
+     * @throws TransformationFailedException
+     */
+    public function reverseTransform($value)
+    {
+        for ($i = count($this->transformers) - 1; $i >= 0; --$i) {
+            $value = $this->transformers[$i]->reverseTransform($value);
+        }
+
+        return $value;
+    }
+}