Add todo about model validation

src/Core/Models/Model.php

@@ -14,6 +14,12 @@ use LogicException;
  * Adds the ability for custom relations to be added to a model during runtime.
  * These relations behave in the same way that you would expect; they can be
  * queried, eager loaded, and accessed as an attribute.
+ *
+ * @todo Refactor out validation, either into a trait or into a dependency.
+ *       The following requirements need to be fulfilled:
+ *       - Ability for extensions to alter ruleset.
+ *       - Ability for extensions to add custom rules to the validator instance.
+ *       - Use Flarum's translator with the validator instance.
  */
 abstract class Model extends Eloquent
 {

src/Locale/Translator.php

@@ -2,6 +2,9 @@
 
 use Closure;
 
+/**
+ * @todo implement Symfony\Component\Translation\TranslatorInterface
+ */
 class Translator
 {
     protected $translations;
@@ -16,9 +19,7 @@ class Translator
 
     public function plural($count)
     {
-        $callback = $this->plural;
-
-        return $callback($count);
+        return {$this->plural}($count);
     }
 
     public function translate($key, array $input = [])