feat(waterfall.vue, list/mutation.js), 修改点赞方法为调用父级emit，reviewed by 郭帅

@@ -7,6 +7,7 @@
         :item-w="344" :gutter-w="18"
         :isLoading="isFetchingArticleList"
         @load-more="loadMore"
+        @update-praise="updatePraise"
       >
       </waterFallList>
 
@@ -37,7 +38,8 @@ export default {
   data() {
     return {
       listData: [],
-      needLoadingData: false
+      needLoadingData: false,
+      isUpdatingPraise: false, // 是否正在调用点赞接口
     };
   },
   mounted() {
@@ -88,7 +90,7 @@ export default {
     this.$refs.waterFallList.routeLeave(to, from, next);
   },
   methods: {
-    ...mapActions(['fetchArticleList']),
+    ...mapActions(['fetchArticleList', 'updateArticlePraise']),
     loadMore() {
       if (this.listInfo.pageNo < this.listInfo.totalPage && !this.isFetchingArticleList) {
         console.log('loadMore');
@@ -98,6 +100,17 @@ export default {
           lastedTime: this.articleListInfo.lastedTime
         });
       }
+    },
+    updatePraise({articleId, status, index}) {
+      if (!this.isUpdatingPraise) {
+        this.isUpdatingPraise = true;
+      }
+      this.updateArticlePraise({articleId, status, index}).then(result => {
+        this.isUpdatingPraise = false;
+        console.log('praiseResult=', result);
+      }).catch(() => {
+        this.isUpdatingPraise = false;
+      });
     }
   },
 

@@ -76,7 +76,6 @@ export default {
       scrollTop: 0, // 页面滚动高度
       isLogin: false, // 是否登录
       loadText: '', // 加载新列表提示文字
-      isUpdatingPraise: false, // 是否正在调用点赞接口
     };
   },
   computed: {
@@ -117,7 +116,6 @@ export default {
     }
   },
   methods: {
-    ...mapActions(['updateArticlePraise']),
     loadMore() {
       this.$emit('load-more');
     },
@@ -150,10 +148,8 @@ export default {
       let index = e.currentTarget.dataset.index;
       let status = e.currentTarget.dataset.praised === 'Y' ? 1 : 0;
 
-      console.log(articleId,index, status);
-      this.updateArticlePraise({articleId, status, index}).then(result => {
-        console.log(result);
-      });
+      console.log(articleId, index, status);
+      this.$emit('update-praise', {articleId, status, index});
     },
 
     routeLeave(to, from, next) {

@@ -35,7 +35,7 @@ export default {
   [Types.UPDATE_ARTICLE_PRAISE](state, {articleId, status, index}) {
     let article = null;
 
-    if (index) {
+    if (index && index != 0) {
       article = state.articleList[index];
     } else {
       article = state.articleList.find(item => +item.articleId === +articleId);