FEATURE: move bussiness logic out of models

app/Models/User.php

@@ -22,7 +22,6 @@ class User extends Model implements AuthenticableInterface
         'password',
         'name',
     ];
-    protected $guarded = [];
     /**
      * The attributes excluded from the model's JSON form.
      *
@@ -38,18 +37,4 @@ class User extends Model implements AuthenticableInterface
     const ROLE_VISITOR = 'visitor';
     const ROLE_EDITOR = 'editor';
     const ROLE_ADMIN = 'admin';
-
-    /**
-     * Getter for Gravatar URL
-     *
-     * This method returns full path (url) to user's Gravatar. It accepts optional parameter for setting size.
-     *
-     * @param int $size size of rendered gravatar
-     *
-     * @return string
-     */
-    public function gravatar($size = 50)
-    {
-        return Gravatar::img($this->email, $size);
-    }
 }