bug fix http://jira.yoho.cn:8888/browse/YH-3284 review by 盖剑秋

@@ -14,7 +14,6 @@ import {
 import {bindActionCreators} from 'redux';
 import {connect} from 'react-redux';
 import {Map} from 'immutable';
-import timeago from 'timeago.js';
 import Immutable, {List, Record} from 'immutable';
 import {Actions} from 'react-native-router-flux';
 
@@ -24,6 +23,7 @@ import * as subjectPostActions from '../reducers/subject/subjectPostActions';
 import * as homeActions from '../reducers/home/homeActions';
 import * as appActions from '../reducers/app/appActions';
 import {number10KFormater} from '../utils/numberFormater';
+import timeago from '../utils/timeago';
 
 const actions = [
     subjectPostActions,
@@ -197,7 +197,7 @@ class SubjectPostContainer extends Component {
     render() {
         let item = this.props.subject.items.get(this.sid);
         let {headIcon,nickName,uid} = item.authorInfo;
-        let timeagoStr = timeago().format(item.createTime, 'zh_CN');
+        let timeagoStr = timeago(item.createTime);
         let header = {
             uid,
             headIcon,

@@ -267,8 +267,13 @@ export function doReport(sid, params) {
 
 export function requestPostContent(sid, postsId) {
     return (dispatch, getState) => {
+        let {subject, user} = getState();
+        let item = subject.items.get(sid);
+		if (!item) {
+			return;
+		}
+        
         dispatch(doRequestContent(sid));
-        let {user} = getState();
         let uid = user.profile.uid;
         let params = {postsId, uid};
         new PostingService().getPostContent(params)