Merge pull request #6 from yann-eugone/feature/enum-choices-as-twig-function

Added a Twig function that gives an enum choices

Author: Yann Eugoné

Tests/Twig/Extension/EnumExtensionTest.php

@@ -57,6 +57,23 @@ public function testEnumLabel()
         );
     }
 
+    public function testEnumChoices()
+    {
+        $enum = $this->prophesize('EnumBundle\Enum\EnumInterface');
+        $enum->getChoices()
+            ->willReturn(['foo' => 'FOO', 'bar' => 'BAR']);
+
+        $this->registry->get('test')
+            ->willReturn($enum->reveal());
+
+        $twig = $this->createEnvironment();
+
+        $this->assertSame(
+            'foo,FOO|bar,BAR|',
+            $twig->createTemplate("{% for value,label in enum_choices('test') %}{{ value }},{{ label }}|{% endfor %}")->render([])
+        );
+    }
+
     /**
      * @return \Twig_Environment
      */

Twig/Extension/EnumExtension.php

@@ -30,6 +30,7 @@ public function getFunctions()
     {
         return [
             new \Twig_SimpleFunction('enum_label', [ $this, 'getLabel' ]),
+            new \Twig_SimpleFunction('enum_choices', [ $this, 'getChoices' ]),
         ];
     }
 
@@ -51,7 +52,7 @@ public function getFilters()
      */
     public function getLabel($value, $enum)
     {
-        $choices = $this->registry->get($enum)->getChoices();
+        $choices = $this->getChoices($enum);
 
         if (isset($choices[$value])) {
             return $choices[$value];
@@ -60,6 +61,16 @@ public function getLabel($value, $enum)
         return $value;
     }
 
+    /**
+     * @param string $enum
+     *
+     * @return array
+     */
+    public function getChoices($enum)
+    {
+        return $this->registry->get($enum)->getChoices();
+    }
+
     /**
      * {@inheritdoc}
      */