Merge pull request #15 from LinioIT/feature/validator-builder

Added validator builder.

Author: klaussilveira

Form/FormFactory.php

@@ -10,6 +10,7 @@
 use Symfony\Component\Form\FormBuilderInterface;
 use Symfony\Component\Form\FormFactory as SymfonyFormFactory;
 use Symfony\Component\Form\FormInterface;
+use Symfony\Component\Validator\Validation;
 
 class FormFactory
 {
@@ -170,6 +171,42 @@ public function createBuilder($key, $data = [], $options = [], $name = null)
         return $formBuilder;
     }
 
+    /**
+     * This method generates a validator based on the configuration file.
+     *
+     * @param string $key The key of the Form in the form configuration
+     * @param mixed $object Object which is the target of the validator
+     *
+     * @return ValidatorInterface
+     *
+     * @throws NonExistentFormException
+     */
+    public function createValidator($key, $object)
+    {
+        if (!isset($this->configuration[$key])) {
+            throw new NonExistentFormException(sprintf('The form "%s" was not found.', $key));
+        }
+
+        $validator = Validation::createValidatorBuilder()->getValidator();
+        $metadata = $validator->getMetadataFor(get_class($object));
+
+        foreach ($this->configuration[$key] as $key => $fieldConfiguration) {
+            if (!$fieldConfiguration['enabled']) {
+                continue;
+            }
+
+            if (!isset($fieldConfiguration['validation'])) {
+                continue;
+            }
+
+            foreach ($fieldConfiguration['validation'] as $validatorName => $options) {
+                $metadata->addPropertyConstraint($key, new $validatorName($options));
+            }
+        }
+
+        return $validator;
+    }
+
     /**
      * @param string $alias
      *

Tests/Form/FormFactoryTest.php

@@ -274,6 +274,33 @@ public function testIsHandlingNotExistenFormException()
         $this->formFactory->getConfiguration('bar');
     }
 
+    public function testIsCreatingValidator()
+    {
+        $formConfiguration = [
+            'foo' => [
+                'field1' => [
+                    'enabled' => true,
+                    'type' => 'field1_type',
+                    'validation' => [
+                        'Symfony\Component\Validator\Constraints\IsTrue' => [
+                            'message' => 'The token is invalid.',
+                        ],
+                    ],
+                ],
+            ],
+        ];
+
+        $expectedFieldOptions = [
+            'constraints' => [
+                new IsTrue(['message' => 'The token is invalid.']),
+            ],
+        ];
+
+        $this->formFactory->setConfiguration($formConfiguration);
+        $validator = $this->formFactory->createValidator('foo', new MockValidatedClass());
+        $this->assertEmpty($validator->validate(new MockValidatedClass()));
+    }
+
     public function setup()
     {
         $this->formBuilderMock = $this->prophesize('Symfony\Component\Form\FormBuilder');
@@ -301,3 +328,8 @@ public function reverseTransform($value)
     {
     }
 }
+
+class MockValidatedClass
+{
+    public $field1 = true;
+}