[Form][2.4] added an option for multiple files upload (closes #1400)

src/Symfony/Component/Form/CHANGELOG.md

@@ -1,6 +1,10 @@
 CHANGELOG
 =========
 
+2.5.0
+------
+
+* added an option for multiple files upload
 
 2.3.0
 ------

src/Symfony/Component/Form/Extension/Core/Type/FileType.php

@@ -23,6 +23,11 @@ class FileType extends AbstractType
      */
     public function buildView(FormView $view, FormInterface $form, array $options)
     {
+        if ($options['multiple']) {
+            $view->vars['full_name'] .= '[]';
+            $view->vars['attr']['multiple'] = 'multiple';
+        }
+
         $view->vars = array_replace($view->vars, array(
             'type'  => 'file',
             'value' => '',
@@ -48,6 +53,7 @@ class FileType extends AbstractType
             'compound' => false,
             'data_class' => 'Symfony\Component\HttpFoundation\File\File',
             'empty_data' => null,
+            'multiple' => false,
         ));
     }
 

src/Symfony/Component/Form/Tests/Extension/Core/Type/FileTypeTest.php

@@ -44,6 +44,25 @@ class FileTypeTest extends \Symfony\Component\Form\Test\TypeTestCase
         $this->assertNull($form->getData());
     }
 
+    public function testSubmitMultiple()
+    {
+        $form = $this->factory->createBuilder('file', null, array(
+            'multiple' => true
+        ))->getForm();
+
+        $data = array(
+            $this->createUploadedFileMock('abcdef', 'first.jpg', true),
+            $this->createUploadedFileMock('zyxwvu', 'second.jpg', true),
+        );
+
+        $form->submit($data);
+        $this->assertSame($data, $form->getData());
+
+        $view = $form->createView();
+        $this->assertSame('file[]', $view->vars['full_name']);
+        $this->assertArrayHasKey('multiple', $view->vars['attr']);
+    }
+
     public function testDontPassValueToView()
     {
         $form = $this->factory->create('file');