From ce030a40d4a3cd9ac64fe39d345e5668af8c238a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michal=20Kv=C3=A1=C4=8Dek?= <michal@binarity.cz>
Date: Sat, 2 Apr 2016 19:11:46 +0200
Subject: [PATCH] FEATURE: cache results for Content::subpages()

---
 app/Models/Content.php | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/app/Models/Content.php b/app/Models/Content.php
index ee83c568..300d1eec 100644
--- a/app/Models/Content.php
+++ b/app/Models/Content.php
@@ -30,6 +30,8 @@ class Content extends Model
         'status'
     ];
     protected $guarded = [];
+    protected $subpages = [];
+    protected $subpagesInit = false;
     const STATUS_DELETED = 'deleted';
     const STATUS_DRAFT = 'draft';
     const STATUS_PROTECTED = 'protected';
@@ -76,9 +78,14 @@ class Content extends Model
      */
     public function subpages()
     {
-        return $this->getPageQuery()
-                    ->where('parent_id', $this->id)
-                    ->get();
+        if (!$this->subpagesInit) {
+            $this->subpages = $this->getPageQuery()
+                                   ->where('parent_id', $this->id)
+                                   ->get();
+            $this->subpagesInit = true;
+        }
+
+        return $this->subpages;
     }
 
     /**