(Guillermo) code review changes

server/controllers/user/signup.php

@@ -1,13 +1,28 @@
 <?php
 use RedBeanPHP\Facade as RedBean;
 
+use Respect\Validation\Validator as DataValidator;
+
 class SignUpController extends Controller {
     const PATH = '/signup';
 
     public function validations() {
         return [
             'permission' => 'any',
-            'requestData' => []
+            'requestData' => [
+                'name' => [
+                    'validation' => DataValidator::length(2, 50),
+                    'error' => ERRORS::INVALID_NAME
+                ],
+                'email' => [
+                    'validation' => DataValidator::contains('@'),
+                    'error' => ERRORS::INVALID_EMAIL
+                ],
+                'password' => [
+                    'validation' => DataValidator::length(5, 20),
+                    'error' => ERRORS::INVALID_PASSWORD
+                ]
+            ]
         ];
     }
 

server/models/ERRORS.php

@@ -3,6 +3,10 @@ class ERRORS {
     const INVALID_CREDENTIALS = 'User or password is not defined';
     const SESSION_EXISTS = 'User is already logged in';
     const NO_PERMISSION = 'You have no permission to access';
+    const INVALID_NAME = 'Invalid name';
+    const INVALID_EMAIL = 'Invalid email';
+    const INVALID_PASSWORD = 'Invalid password';
     const INVALID_TITLE = 'Invalid title';
     const INVALID_CONTENT = 'Invalid content';
+    
 }