From a684879b91fe9b0c966b2192e6ad7a3d2d1e718a Mon Sep 17 00:00:00 2001
From: azivner <adam.zivner@gmail.com>
Date: Mon, 13 Aug 2018 17:16:06 +0200
Subject: [PATCH] primitive attribute caching inside note entity, fixes #149

---
 src/entities/note.js | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/entities/note.js b/src/entities/note.js
index 89c05e6b8..c75a9144f 100644
--- a/src/entities/note.js
+++ b/src/entities/note.js
@@ -71,6 +71,18 @@ class Note extends Entity {
     }
 
     async getAttributes() {
+        if (!this.__attributeCache) {
+            await this.loadAttributesToCache();
+        }
+
+        return this.__attributeCache;
+    }
+
+    invalidateAttributeCache() {
+        this.__attributeCache = null;
+    }
+
+    async loadAttributesToCache() {
         const attributes = await repository.getEntities(`
             WITH RECURSIVE
             tree(noteId, level) AS (
@@ -129,7 +141,7 @@ class Note extends Entity {
             attr.isOwned = attr.noteId === this.noteId;
         }
 
-        return filteredAttributes;
+        this.__attributeCache = filteredAttributes;
     }
 
     async hasLabel(name) {
@@ -171,6 +183,8 @@ class Note extends Entity {
             });
 
             await label.save();
+
+            this.invalidateAttributeCache();
         }
     }
 
@@ -181,6 +195,8 @@ class Note extends Entity {
             if (attribute.type === 'label' && (!value || value === attribute.value)) {
                 attribute.isDeleted = true;
                 await attribute.save();
+
+                this.invalidateAttributeCache();
             }
         }
     }