【愚公系列】2022年11月 uniapp专题-优购电商-商品列表

<template>
  <view class="goods-item">
    <!-- 左侧的盒子 -->
    <view class="goods-item-left">
      <radio :checked="goods.goods_state" color="#C00000" v-if="showRadio" @click="radioClickHandler"></radio>
      <image :src="goods.goods_small_logo || defaultPic" class="goods-pic"></image>
    </view>
    <!-- 右侧的盒子 -->
    <view class="goods-item-right">
      <!-- 商品的名字 -->
      <view class="goods-name">{{goods.goods_name}}</view>
      <view class="goods-info-box">
        <view class="goods-price">￥{{goods.goods_price | tofixed}}</view>
        <uni-number-box :min="1" :value="goods.goods_count" v-if="showNum" @change="numChangeHandler"></uni-number-box>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    props: {
      goods: {
        type: Object,
        default: {}
      },
      showRadio: {
        type: Boolean,
        // 默认情况下，不会展示 radio 组件
        default: false
      },
      showNum: {
        type: Boolean,
        default: false
      }
    },
    data() {
      return {
        // 默认的图片
        defaultPic: 'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png'
      };
    },
    filters: {
      tofixed(num) {
        return Number(num).toFixed(2)
      }
    },
    methods: {
      // 这是 radio 组件的 点击事件处理函数
      radioClickHandler() {
        this.$emit('radio-change', {
          goods_id: this.goods.goods_id,
          goods_state: !this.goods.goods_state
        })
      },
      // 监听到了 NumberBox 组件数量变化的事件
      numChangeHandler(val) {
        this.$emit('num-change', {
          goods_id: this.goods.goods_id,
          goods_count: +val
        })
      }
    }
  }
</script>

<style lang="scss">
  .goods-item {
    width: 750rpx;
    box-sizing: border-box;
    display: flex;
    padding: 10px 5px;
    border-bottom: 1px solid #f0f0f0;

    .goods-item-left {
      margin-right: 5px;
      display: flex;
      justify-content: space-between;
      align-items: center;

      .goods-pic {
        width: 100px;
        height: 100px;
        display: block;
      }
    }

    .goods-item-right {
      display: flex;
      flex: 1;
      flex-direction: column;
      justify-content: space-between;

      .goods-name {
        font-size: 13px;
      }

      .goods-info-box {
        display: flex;
        justify-content: space-between;
        align-items: center;

        .goods-price {
          color: #C00000;
          font-size: 16px;
        }
      }
    }
  }
</style>

<template>
  <view>
    <view class="goods-list">
      <view v-for="(goods, i) in goodsList" :key="i" @click="gotoDetail(goods)">
        <my-goods :goods="goods"></my-goods>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        // 请求参数对象
        queryObj: {
          query: '',
          cid: '',
          pagenum: 1,
          pagesize: 10
        },
        goodsList: [],
        total: 0,
        // 节流阀
        isloading: false
      };
    },
    onLoad(options) {
      this.queryObj.query = options.query || ''
      this.queryObj.cid = options.cid || ''

      this.getGoodsList()
    },
    methods: {
      // 获取商品列表数据的方法
      async getGoodsList(cb) {
        // 打开节流阀
        this.isloading = true
        const { data: res } = await uni.$http.get('/api/public/v1/goods/search', this.queryObj)
        // 关闭节流阀
        this.isloading = false
        cb && cb()
        if (res.meta.status !== 200) return uni.$showMsg()

        this.goodsList = [...this.goodsList, ...res.message.goods]
        this.total = res.message.total
      },
      gotoDetail(goods) {
        uni.navigateTo({
          url: '/subpkg/goods_detail/goods_detail?goods_id=' + goods.goods_id
        })
      }
    },
    onReachBottom() {
      if (this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg('数据加载完毕!')

      if (this.isloading) return

      // 让页码值自增+1
      this.queryObj.pagenum++
      this.getGoodsList()
    },
    onPullDownRefresh() {
      // 重置关键数据
      this.queryObj.pagenum = 1
      this.total = 0
      this.isloading = false
      this.goodsList = []

      // 重新发起数据请求
      this.getGoodsList(() => uni.stopPullDownRefresh())
    }
  }
</script>

<style lang="scss">

</style>