Files
msh-system/msh_single_uniapp/pages/tool/nutrition-knowledge.vue
scottpan 15ad15b501 fix: 修复微信小程序 v-for 事件绑定兼容性问题
- 修复 v-for 循环中 @click 直接传递 item 导致的错误
- 使用 data- 属性传递数据,通过 event.currentTarget.dataset 获取
- 适配微信小程序模板编译限制

Error: v-for 暂不支持循环数据 (env: macOS,mp,1.06.2307250)
2026-03-05 10:47:45 +08:00

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<template>
<view class="nutrition-page">
<!-- Tab切换 -->
<view class="tab-container">
<view
class="tab-item"
:class="{ active: currentTab === 'nutrients' }"
@click="switchTab('nutrients')"
>
<text>营养素</text>
</view>
<view
class="tab-item"
:class="{ active: currentTab === 'guide' }"
@click="switchTab('guide')"
>
<text>饮食指南</text>
</view>
<view
class="tab-item"
:class="{ active: currentTab === 'articles' }"
@click="switchTab('articles')"
>
<text>科普文章</text>
</view>
</view>
<!-- 内容区域 -->
<scroll-view class="content-scroll" scroll-y>
<!-- 营养素百科Tab内容 -->
<view v-if="currentTab === 'nutrients'" class="tab-content">
<view class="intro-text">了解关键营养素科学管理慢性肾病饮食</view>
<view class="nutrient-list">
<view
class="nutrient-card"
v-for="(item, index) in nutrientList"
:key="index"
@click="goToNutrientDetail" data-nutrient-index="{{ index }}"
>
<view class="nutrient-icon-wrapper">
<text class="nutrient-icon">{{ item.icon }}</text>
</view>
<view class="nutrient-info">
<view class="nutrient-header">
<text class="nutrient-name">{{ item.name }}</text>
<text class="nutrient-english">{{ item.english }}</text>
</view>
<text class="nutrient-desc">{{ item.description }}</text>
<view class="nutrient-tag" :class="item.tagClass">
<text>{{ item.tag }}</text>
</view>
</view>
<view class="arrow-icon">
<text></text>
</view>
</view>
</view>
</view>
<!-- 饮食指南Tab内容来自 v2_knowledgetype=guide -->
<view v-if="currentTab === 'guide'" class="tab-content">
<view class="knowledge-list">
<view
class="knowledge-item"
v-for="(item, index) in (guideList || [])"
:key="item.knowledgeId || item.id || index"
@click="goToDetail" data-item-id="{{ item.id }}" data-item-kid="{{ item.knowledgeId }}"
>
<view class="knowledge-cover" v-if="item.coverImage || item.cover_image">
<image :src="item.coverImage || item.cover_image" mode="aspectFill" class="cover-img" />
</view>
<view class="knowledge-icon" v-else>
<text>{{ item.icon }}</text>
</view>
<view class="knowledge-info">
<view class="knowledge-title">{{ item.title }}</view>
<view class="knowledge-desc">{{ item.desc }}</view>
<view class="knowledge-meta">
<text class="meta-text">{{ item.time }}</text>
<text class="meta-dot">·</text>
<text class="meta-text">{{ item.views }}</text>
</view>
</view>
</view>
</view>
<view v-if="(guideList || []).length === 0" class="empty-placeholder">
<text>暂无饮食指南数据</text>
</view>
</view>
<!-- 科普文章Tab内容来自 v2_knowledgetype=article -->
<view v-if="currentTab === 'articles'" class="tab-content">
<view class="knowledge-list">
<view
class="knowledge-item"
v-for="(item, index) in (articleList || [])"
:key="item.knowledgeId || item.id || index"
@click="goToDetail" data-item-id="{{ item.id }}" data-item-kid="{{ item.knowledgeId }}"
>
<view class="knowledge-cover" v-if="item.coverImage || item.cover_image">
<image :src="item.coverImage || item.cover_image" mode="aspectFill" class="cover-img" />
</view>
<view class="knowledge-icon" v-else>
<text>{{ item.icon }}</text>
</view>
<view class="knowledge-info">
<view class="knowledge-title">{{ item.title }}</view>
<view class="knowledge-desc">{{ item.desc }}</view>
<view class="knowledge-meta">
<text class="meta-text">{{ item.time }}</text>
<text class="meta-dot">·</text>
<text class="meta-text">{{ item.views }}</text>
</view>
</view>
</view>
</view>
<view v-if="(articleList || []).length === 0" class="empty-placeholder">
<text>暂无科普文章数据</text>
</view>
</view>
</scroll-view>
</view>
</template>
<script>
export default {
data() {
return {
currentTab: 'nutrients',
guideList: [],
articleList: [],
nutrientList: [
{
name: '蛋白质',
english: 'Protein',
icon: '🥩',
description: '构成人体组织的重要营养素',
tag: '需控制',
tagClass: 'control'
},
{
name: '钾',
english: 'Potassium (K)',
icon: '🍌',
description: '维持神经肌肉功能的重要元素',
tag: '严格控制',
tagClass: 'strict'
},
{
name: '磷',
english: 'Phosphorus (P)',
icon: '🥜',
description: '骨骼健康的重要矿物质',
tag: '严格控制',
tagClass: 'strict'
},
{
name: '钠',
english: 'Sodium (Na)',
icon: '🧂',
description: '调节体液平衡的电解质',
tag: '适量控制',
tagClass: 'moderate'
},
{
name: '钙',
english: 'Calcium (Ca)',
icon: '🥛',
description: '骨骼和牙齿的主要成分',
tag: '适量补充',
tagClass: 'supplement'
},
{
name: '水分',
english: 'Water',
icon: '💧',
description: '生命活动必需的基础物质',
tag: '需控制',
tagClass: 'control'
}
]
}
},
onLoad(options) {
if (options && options.id) {
// 有 id 时切换到科普文章 tabswitchTab 内会调用 loadKnowledgeList 加载列表
this.switchTab('articles');
} else {
// 无 id 时默认当前 tab 为「营养素」,不请求接口;用户点击「饮食指南」或「科普文章」时由 switchTab 触发 loadKnowledgeList
this.currentTab = 'nutrients';
}
},
methods: {
formatKnowledgeTime(val) {
if (!val) return '';
const d = new Date(val);
if (isNaN(d.getTime())) return String(val);
const y = d.getFullYear();
const m = String(d.getMonth() + 1).padStart(2, '0');
const day = String(d.getDate()).padStart(2, '0');
return `${y}-${m}-${day}`;
},
async loadKnowledgeList() {
// 营养素列表使用本地静态数据不从API加载
if (this.currentTab === 'nutrients') {
return;
}
// type 与后端一致guide / articlev2_knowledge 表 type 字段)
const typeParam = this.currentTab === 'guide' ? 'guide' : 'article';
try {
const { getKnowledgeList } = await import('@/api/tool.js');
const result = await getKnowledgeList({
type: typeParam,
page: 1,
limit: 50
});
// 兼容 CommonPageresult.data.list或 result.data/result.data.records 为数组
let rawList = [];
if (result && result.data) {
if (Array.isArray(result.data.list)) {
rawList = result.data.list;
} else if (Array.isArray(result.data.records)) {
rawList = result.data.records;
} else if (Array.isArray(result.data)) {
rawList = result.data;
}
}
// Normalize id: backend may return knowledgeId, id, or knowledge_id (BeanUtil/JSON)
const list = (rawList || []).map(item => {
const id = item.knowledgeId ?? item.id ?? item.knowledge_id;
return {
...item,
id,
desc: item.desc || item.summary || '',
time: item.time || (item.publishedAt || item.createdAt ? this.formatKnowledgeTime(item.publishedAt || item.createdAt) : ''),
views: item.views != null ? item.views : (item.viewCount != null ? item.viewCount : 0),
icon: item.icon || '📄',
coverImage: item.coverImage || item.cover_image || ''
};
});
if (this.currentTab === 'guide') {
this.guideList = list;
} else if (this.currentTab === 'articles') {
this.articleList = list;
}
} catch (error) {
console.error('加载知识列表失败:', error);
const msg = (error && (typeof error === 'string' ? error : (error.message || error.msg))) || '加载列表失败';
uni.showToast({
title: String(msg),
icon: 'none'
});
// 失败时清空当前 tab 列表并确保始终为数组,不设为 undefined
if (this.currentTab === 'guide') {
this.guideList = [];
} else if (this.currentTab === 'articles') {
this.articleList = [];
}
}
},
async switchTab(tab) {
this.currentTab = tab;
await this.loadKnowledgeList();
},
goToNutrientDetail(event) {
const index = event.currentTarget.dataset.nutrientIndex;
const item = this.nutrientList[index];
if (!item) return;
uni.navigateTo({
url: `/pages/tool/nutrient-detail?name=${item.name}`
})
},
goToDetail(event) {
const id = event.currentTarget.dataset.itemId;
const knowledgeId = event.currentTarget.dataset.itemKid;
const finalId = knowledgeId || id;
if (!finalId) {
uni.showToast({ title: "暂无详情", icon: "none" });
return;
}
uni.navigateTo({
url: `/pages/tool/knowledge-detail?id=${finalId}`
});
}
}
}
</script>
<style lang="scss" scoped>
.nutrition-page {
height: 100vh;
display: flex;
flex-direction: column;
background-color: #f4f5f7;
}
/* Tab切换 */
.tab-container {
background: #ffffff;
border-bottom: 1rpx solid #d0dbea;
display: flex;
padding: 12rpx 32rpx;
gap: 16rpx;
}
.tab-item {
flex: 1;
height: 75rpx;
border-radius: 50rpx;
display: flex;
align-items: center;
justify-content: center;
background: #ffffff;
border: 1rpx solid #d0dbea;
text {
font-size: 28rpx;
color: #9fa5c0;
}
&.active {
background: #ff6b35;
border-color: #ff6b35;
text {
color: #ffffff;
}
}
}
/* 内容滚动区域 */
.content-scroll {
flex: 1;
overflow-y: auto;
}
.tab-content {
padding: 32rpx;
}
.intro-text {
font-size: 28rpx;
color: #9fa5c0;
margin-bottom: 32rpx;
line-height: 1.2;
}
/* 营养素列表 */
.nutrient-list {
display: flex;
flex-direction: column;
gap: 24rpx;
}
.nutrient-card {
background: #ffffff;
border: 1rpx solid #d0dbea;
border-radius: 24rpx;
padding: 32rpx;
display: flex;
align-items: center;
gap: 32rpx;
}
.nutrient-icon-wrapper {
width: 112rpx;
height: 112rpx;
border-radius: 50%;
background: #e3fff1;
display: flex;
align-items: center;
justify-content: center;
flex-shrink: 0;
}
.nutrient-icon {
font-size: 60rpx;
}
.nutrient-info {
flex: 1;
display: flex;
flex-direction: column;
gap: 8rpx;
}
.nutrient-header {
display: flex;
align-items: baseline;
gap: 16rpx;
}
.nutrient-name {
font-size: 32rpx;
color: #101828;
font-weight: 500;
}
.nutrient-english {
font-size: 24rpx;
color: #99a1af;
}
.nutrient-desc {
font-size: 28rpx;
color: #4a5565;
line-height: 1.5;
}
.nutrient-tag {
padding: 8rpx 24rpx;
border-radius: 50rpx;
display: inline-block;
align-self: flex-start;
text {
font-size: 24rpx;
}
&.control {
background: #fef2f2;
border: 1rpx solid #ffc9c9;
text {
color: #e7000b;
}
}
&.strict {
background: #fef2f2;
border: 1rpx solid #ffc9c9;
text {
color: #e7000b;
}
}
&.moderate {
background: #fff8e1;
border: 1rpx solid #ffe0b2;
text {
color: #ff9800;
}
}
&.supplement {
background: #f0fdf4;
border: 1rpx solid #b9f8cf;
text {
color: #00a63e;
}
}
}
.arrow-icon {
width: 40rpx;
height: 40rpx;
display: flex;
align-items: center;
justify-content: center;
flex-shrink: 0;
text {
font-size: 40rpx;
color: #9fa5c0;
}
}
/* 空状态 */
.empty-placeholder {
padding: 200rpx 0;
text-align: center;
color: #9fa5c0;
font-size: 28rpx;
}
/* 知识列表 */
.knowledge-list {
display: flex;
flex-direction: column;
gap: 24rpx;
}
.knowledge-item {
background: #ffffff;
border-radius: 24rpx;
padding: 32rpx;
box-shadow: 0 20rpx 30rpx -6rpx rgba(0, 0, 0, 0.1), 0 8rpx 12rpx -4rpx rgba(0, 0, 0, 0.1);
display: flex;
gap: 32rpx;
}
.knowledge-cover {
width: 128rpx;
height: 128rpx;
border-radius: 32rpx;
overflow: hidden;
flex-shrink: 0;
}
.cover-img {
width: 100%;
height: 100%;
}
.knowledge-icon {
width: 128rpx;
height: 128rpx;
border-radius: 32rpx;
background: #f4f5f7;
display: flex;
align-items: center;
justify-content: center;
flex-shrink: 0;
text {
font-size: 60rpx;
}
}
.knowledge-info {
flex: 1;
display: flex;
flex-direction: column;
justify-content: space-between;
.knowledge-title {
font-size: 28rpx;
color: #2e3e5c;
font-weight: 500;
margin-bottom: 12rpx;
}
.knowledge-desc {
font-size: 24rpx;
color: #9fa5c0;
line-height: 1.6;
margin-bottom: 16rpx;
}
.knowledge-meta {
display: flex;
align-items: center;
gap: 24rpx;
.meta-text {
font-size: 24rpx;
color: #9fa5c0;
}
.meta-dot {
font-size: 24rpx;
color: #d0dbea;
}
}
}
</style>