Add getIdByName function to Category class

Changelog

@@ -1,4 +1,5 @@
 2017-10-06 DariusIII
+	* Chg: Add getIdByName function to Category class
 	* Chg: Update services.php with proper user model
 	* Fix: Fix category display on pages
 	* Chg: Update cs of some files, use Category model in Category class

nntmux/Category.php

@@ -313,6 +313,18 @@ class Category
         return $cat !== null ? $cat->parent->title.' -> '.$cat->title : '';
     }
 
+    /**
+     * @param $title
+     * @param $parent
+     * @return bool|mixed
+     */
+    public function getIdByName($title, $parent)
+    {
+        $cat = CategoryModel::query()->where('title', $title)->with('parent.' . $parent)->first(['id']);
+
+        return $cat !== null ? $cat->id : false;
+    }
+
     /**
      * Update a category.
      *