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Note表是否要有Attachs信息呢? 还是只要一个attachNum ?

node_modules/file.js

@@ -5,6 +5,7 @@ var Evt = require('evt');
 var User = require('user');
 var Common = require('common');
 var Images = db.images;
+var Attachs = db.attachs;
 
 function log(o) {
 	console.log(o);
@@ -173,6 +174,49 @@ var File = {
 			}
 			Images.update({FileId: file.LocalFileId}, {$set: {ServerFileId: file.FileId, IsDirty: false}});
 		}
+	},
+
+	// 附件操作
+	addAttach: function(filePaths, noteId, callback) {
+		if(!noteId || !filePaths) {
+			return callback && callback(false);
+		}
+		filePaths = filePaths.split(';');
+		// 复制每一个文件, 保存到数据库中
+		var targets = [];
+		for(var i in filePaths) {
+			var filePath = filePaths[i];
+			var fileStat = fs.statSync(filePath);
+			var paths = filePath.split('/');
+			var name = paths[paths.length-1];
+			var names = name.split('.');
+			var ext = names[names.length-1];
+
+			var rename = Common.uuid() + "." + ext;
+			var distPath = User.getCurUserAttachsAppPath() + '/' + rename;
+			var readable = fs.createReadStream(filePath);
+	        // 创建写入流
+	        var writable = fs.createWriteStream(distPath);   
+	        // 通过管道来传输流
+	        readable.pipe(writable);
+			var attach = {
+				FileId: Common.objectId,
+				ServerFileId: '',
+				Path: distPath,
+				NoteId: noteId,
+				Name: rename,
+				UserId: User.getCurActiveUserId(),
+				Title: name,
+				Type: ext,
+				Size: fileStat && fileStat.size,
+				IsDirty: true, // 本地是新添加的
+				CreatedTime: new Date()
+			};
+			Attachs.insert(attach);
+			targets.push(attach);
+		}
+
+		callback && callback(targets);
 	}
 };