From 2992f4ee490e146d4b59e6d3be120bbec29cf9b7 Mon Sep 17 00:00:00 2001
From: weicw1996 <weicw1996@qq.com>
Date: Mon, 12 Oct 2026 14:49:18 +0800
Subject: [PATCH] =?UTF-8?q?fix(=E8=8D=AF=E5=88=86=E4=BA=AB):=20=E4=BF=AE?=
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问题一：<page-meta> 渲染层报错“只能是页面内的第一个节点”
page-meta 原先嵌在根 view 内，位置在根节点的孙级。而编译器
uni-template-compiler/lib/template/generate.js 的 parsePageMeta 只检查
根节点的直接 children，匹配不到就不做“提升为第一个节点”的处理；
加上 webpack-uni-app-loader/page-meta.js 只要模板含 <page-meta 就会
无条件外包一层 <view>，最终渲染成
  <view class="data-v-xxx"><view class="share-page">...<page-meta>
导致微信报错。改为让 page-meta 与业务根 view 平级、放在最前，
经真实编译器验证产物第一个标签已是 <page-meta>。

问题二：onShow 抛 Cannot read properties of undefined (reading 'list')
直接诱因是后端 /yxe/yxe-share-detail/page?groupByProduct=true 报错
（见 yxe-java 侧提交），返回体 code=1 且不带 data，getProductList 里
data.list 抛异常并中断整个 onShow，页面数据全部不渲染。
本次在小程序侧做防御性兜底，避免任一接口失败就整页白屏：
- getProductList / getTodayShare / getShareUserData / getUserData /
  getRule / getShareData 均按要求校验再赋值
- getShareData 改用 slice() 排序，避免就地改动接口返回的数组；
  amount 缺失按 0 处理，避免 NaN 让排序结果不稳定
---
 pages/share/index.vue | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/pages/share/index.vue b/pages/share/index.vue
index 0d36fa4..b0d7586 100644
--- a/pages/share/index.vue
+++ b/pages/share/index.vue
@@ -1,6 +1,6 @@
 <template>
+  <page-meta :page-style="pageStyle"/>
   <view class="share-page">
-    <page-meta :page-style="pageStyle"/>
     <view class="share-hero">
       <AppNavbar title="药分享">
       </AppNavbar>
@@ -651,7 +651,7 @@ export default {
     },
     async getRule() {
       const {data} = await dictDataInfoReq(576)
-      this.rewardRules = data.dictDataCode
+      this.rewardRules = (data && data.dictDataCode) || ''
     },
     async getShareData() {
       const params = {
@@ -662,17 +662,22 @@ export default {
         params.merchantId = this.merchantId
       }
       const {data} = await shareDataReq(params)
-      const list = Array.isArray(data) ? data : (data && data.list ? data.list : [])
-      this.brandRanks = list.sort((a, b) => parseFloat(b.amount) - parseFloat(a.amount))
+      const list = Array.isArray(data) ? data : (data && Array.isArray(data.list) ? data.list : [])
+      // slice 避免就地排序改动接口返回的数组；amount 缺失时按 0 处理，避免 NaN 让排序结果不稳定
+      this.brandRanks = list.slice().sort((a, b) => (parseFloat(b.amount) || 0) - (parseFloat(a.amount) || 0))
     },
     async getShareUserData() {
       const {data} = await shareUserDataReq()
-      this.data = data
+      // 接口业务失败（code!=0）时 get 仍会 resolve 出不含 data 的响应体，
+      // 这里必须兜底为默认统计值，否则模板里的 data.num 会整页崩掉
+      this.data = data && typeof data === 'object'
+        ? Object.assign({income: 0, num: 0, totalNum: 0, totalIncome: 0}, data)
+        : {income: 0, num: 0, totalNum: 0, totalIncome: 0}
     },
     async getUserData() {
       const {data} = await userInfoReq()
       this.isLoggedIn = true
-      this.user = data
+      this.user = data && typeof data === 'object' ? data : {canAuth: 0}
     },
     async getTodayShare() {
       const params = {
@@ -685,7 +690,7 @@ export default {
         params.merchantId = this.merchantId
       }
       const {data} = await shareListReq(params)
-      this.todayEntries = data
+      this.todayEntries = Array.isArray(data) ? data : []
       this.showAllToday = false
       this.updateTodayDistances()
     },
@@ -701,8 +706,10 @@ export default {
         params.merchantId = this.merchantId
       }
       const {data} = await shareDetailPageReq(params)
-      this.shareProducts = data.list
-      this.shareProducts = this.shareProducts.filter(item => !!item.product).filter((item, index) => index < 48)
+      // 后端分页接口失败时 data 为 undefined，直接取 data.list 会抛
+      // "Cannot read properties of undefined (reading 'list')"
+      const list = Array.isArray(data && data.list) ? data.list : []
+      this.shareProducts = list.filter(item => !!item.product).slice(0, 48)
       this.showAllProducts = false
       this.productKeyword = ''
       this.productKeywordApplied = ''