Code cleaning stuff.

app/Factory/CategoryFactory.php

@@ -34,6 +34,9 @@ use Log;
  */
 class CategoryFactory
 {
+    /** @var User */
+    private $user;
+
     /**
      * Constructor.
      */
@@ -44,9 +47,6 @@ class CategoryFactory
         }
     }
 
-    /** @var User */
-    private $user;
-
     /**
      * @param string $name
      *
@@ -94,7 +94,7 @@ class CategoryFactory
             }
         }
 
-        if (\strlen($categoryName) > 0) {
+        if ('' !== $categoryName) {
             $category = $this->findByName($categoryName);
             if (null !== $category) {
                 return $category;