From 7119032909c15fe2111c1197da4a4cce69b33a1c Mon Sep 17 00:00:00 2001
From: Ed Page <eopage@byu.net>
Date: Fri, 17 Apr 2009 21:04:45 -0500
Subject: [PATCH] Adding save/load to backend interface

---
 src/file_backend.py |   18 +++++++++++++++++-
 src/null_backend.py |    6 ++++++
 src/rtm_backend.py  |    6 ++++++
 3 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/src/file_backend.py b/src/file_backend.py
index 2493e8d..93cee59 100644
--- a/src/file_backend.py
+++ b/src/file_backend.py
@@ -1,4 +1,5 @@
 import uuid
+import pickle
 import datetime
 
 import toolbox
@@ -6,11 +7,26 @@ import toolbox
 
 class FileManager(object):
 
-	def __init__(self):
+	def __init__(self, filename):
+		self._filename = filename
 		self._projects = {}
 		self._items = {}
 		self._locations = {}
 
+	def save(self):
+		state = {
+			"projects": self._projects,
+			"items": self._items,
+			"locations": self._locations,
+		}
+		pickle.dump(state, self._filename)
+
+	def load(self):
+		state = pickle.load(self._filename)
+		self._projects = state["projects"]
+		self._items = state["items"]
+		self._locations = state["locations"]
+
 	def add_project(self, name):
 		projId = uuid.uuid4().hex
 		projDetails = {
diff --git a/src/null_backend.py b/src/null_backend.py
index 5997d13..d70d55e 100644
--- a/src/null_backend.py
+++ b/src/null_backend.py
@@ -3,6 +3,12 @@ class NullManager(object):
 	def __init__(self, username, password, token=None):
 		pass
 
+	def save(self):
+		pass
+
+	def load(self):
+		pass
+
 	def add_project(self, name):
 		raise NotImplementedError("Not logged in to any ToDo system")
 
diff --git a/src/rtm_backend.py b/src/rtm_backend.py
index 9d7cb5f..d724d13 100644
--- a/src/rtm_backend.py
+++ b/src/rtm_backend.py
@@ -39,6 +39,12 @@ class RtMilkManager(object):
 		self._timeline = resp.timeline
 		self._lists = []
 
+	def save(self):
+		pass
+
+	def load(self):
+		pass
+
 	def add_project(self, name):
 		rsp = self._rtm.lists.add(
 			timeline=self._timeline,
-- 
1.7.9.5