添加注释

Leanote/service/BaseService.m

@@ -10,8 +10,8 @@
 
 @implementation BaseService
 
-static NSManagedObjectContext * context;
-static NSManagedObjectContext * writerContext;
+static NSManagedObjectContext * context; // 当前视图context
+static NSManagedObjectContext * writerContext; // 数据库context
 
 // http://stackoverflow.com/questions/695980/how-do-i-declare-class-level-properties-in-objective-c
 + (NSManagedObjectContext *) context {
@@ -63,7 +63,7 @@ static NSManagedObjectContext * writerContext;
 				 push:(BOOL)push
 				 write:(BOOL)write
 {
-	// 如果是privaate context, 则
+	// 如果是private context, 则
 	if(inContext != context) {
 		NSError * savingError = nil;
 		BOOL ok = [inContext save:&savingError];
@@ -108,7 +108,8 @@ static NSManagedObjectContext * writerContext;
 	return YES;
 }
 
-// 得到临时context
+// 新建一个
+// 得到临时context, parent为context
 + (NSManagedObjectContext *)getTmpContext
 {
 	NSManagedObjectContext *temporaryContext = [[NSManagedObjectContext alloc] initWithConcurrencyType:NSPrivateQueueConcurrencyType];

Leanote/service/Leas.m

@@ -1,6 +1,6 @@
 //
 //  Leas.m
-//  Leanote
+//  Leanote单例Service, AppDelegate.m实例化, BaseService.context 为其tmpContext
 //
 //  Created by life on 15/7/30.
 //  Copyright (c) 2015年 Leanote. All rights reserved.

Leanote/service/SyncService.m

@@ -2,6 +2,8 @@
 //  SyncService.m
 //  Leanote
 //
+//  每一次同步都会实例化Notebook, Note, Tag service, tmpContext传过去
+//
 //  Created by life on 15/6/7.
 //  Copyright (c) 2015 Leanote.com. All rights reserved.
 //
@@ -355,6 +357,7 @@ BOOL inSyncing = NO;
 	}
 }
 
+// 初始化各个service
 - (void) initService
 {
 	_notebookService = [[NotebookService alloc] init];
@@ -392,6 +395,8 @@ BOOL inSyncing = NO;
 + (SyncService *) newSync
 {
 	SyncService *syncService = [[SyncService alloc] init];
+	
+	// 新建tmpContext
 	syncService.tmpContext = [self getTmpContext];
 	
 	[syncService initService];