From 61af03c5f9900db1ab5916a3802d5eb59f0f79d7 Mon Sep 17 00:00:00 2001
From: Sebastian Pipping <sebastian@pipping.org>
Date: Wed, 5 Oct 2011 12:39:22 +0200
Subject: [PATCH] client-barcode: Add an item cache

---
 client-barcode/freitagskasse.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/client-barcode/freitagskasse.py b/client-barcode/freitagskasse.py
index 48330b8..14deba5 100644
--- a/client-barcode/freitagskasse.py
+++ b/client-barcode/freitagskasse.py
@@ -56,6 +56,7 @@ def error_page(message):
 class Status:
 	def __init__(self):
 		self._reset()
+		self.item_cache = dict()
 
 	def _reset(self):
 		self.auth_blob = None
@@ -122,7 +123,12 @@ class Status:
 		self._reset()
 
 	def find(self, item_id):
-		return net.get_item(item_id)
+		try:
+			return self.item_cache[item_id]
+		except KeyError:
+			item = net.get_item(item_id)
+			self.item_cache[item_id] = item
+			return item
 
 	def buy(self, item):
 		assert(self.logged_in())