修改系统信息清空接口

app/service/forumMessageService.js

@@ -212,12 +212,15 @@ exports.updateUserMessageStatus= function(condition,msgID, status,callback) {
 			console.error(err);
 			callback(err,null);
 		}else{
-			if(!msgID){
-				for(var i in docs){
+			if(!msgID){  //更改全部
+				for(var i = 0; i < docs.length; i++){
+					if (docs[i].toObject) {
+		                docs[i] = docs[i].toObject();
+		            }
             		docs[i].status = status;
             	}
-            } else {
-	            for(var i in docs){
+            } else { //更改单条
+	            for(var i = 0; i < docs.length; i++){
 	            	if (docs[i].msg == msgID) {
 	                	if (docs[i].toObject) {
 		                    docs[i] = docs[i].toObject();