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import Dialog from 'tdesign-miniprogram/dialog/index';
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import Toast from 'tdesign-miniprogram/toast/index';
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import { fetchCartGroupData } from '../../services/cart/cart';
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Page({
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data: {
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cartGroupData: null,
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},
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// 调用自定义tabbar的init函数，使页面与tabbar激活状态保持一致
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onShow() {
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this.getTabBar().init();
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},
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onLoad() {
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this.refreshData();
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},
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refreshData() {
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this.getCartGroupData().then((res) => {
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let isEmpty = true;
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const cartGroupData = res.data;
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// 一些组件中需要的字段可能接口并没有返回，或者返回的数据结构与预期不一致，需要在此先对数据做一些处理
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// 统计门店下加购的商品是否全选、是否存在缺货/无货
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for (const store of cartGroupData.storeGoods) {
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store.isSelected = true; // 该门店已加购商品是否全选
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store.storeStockShortage = false; // 该门店已加购商品是否存在库存不足
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if (!store.shortageGoodsList) {
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store.shortageGoodsList = []; // 该门店已加购商品如果库存为0需单独分组
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}
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for (const activity of store.promotionGoodsList) {
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activity.goodsPromotionList = activity.goodsPromotionList.filter(
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(goods) => {
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goods.originPrice = undefined;
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// 统计是否有加购数大于库存数的商品
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if (goods.quantity > goods.stockQuantity) {
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store.storeStockShortage = true;
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}
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// 统计是否全选
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if (!goods.isSelected) {
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store.isSelected = false;
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}
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// 库存为0（无货）的商品单独分组
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if (goods.stockQuantity > 0) {
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return true;
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}
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store.shortageGoodsList.push(goods);
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return false;
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},
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);
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if (activity.goodsPromotionList.length > 0) {
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isEmpty = false;
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}
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}
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if (store.shortageGoodsList.length > 0) {
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isEmpty = false;
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}
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}
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cartGroupData.invalidGoodItems = cartGroupData.invalidGoodItems.map(
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(goods) => {
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goods.originPrice = undefined;
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return goods;
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},
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);
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cartGroupData.isNotEmpty = !isEmpty;
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this.setData({ cartGroupData });
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});
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},
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findGoods(spuId, skuId) {
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let currentStore;
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let currentActivity;
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let currentGoods;
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const { storeGoods } = this.data.cartGroupData;
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for (const store of storeGoods) {
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for (const activity of store.promotionGoodsList) {
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for (const goods of activity.goodsPromotionList) {
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if (goods.spuId === spuId && goods.skuId === skuId) {
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currentStore = store;
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currentActivity = currentActivity;
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currentGoods = goods;
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return {
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currentStore,
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currentActivity,
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currentGoods,
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};
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}
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}
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}
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}
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return {
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currentStore,
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currentActivity,
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currentGoods,
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};
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},
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// 注：实际场景时应该调用接口获取购物车数据
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getCartGroupData() {
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const { cartGroupData } = this.data;
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if (!cartGroupData) {
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return fetchCartGroupData();
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}
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return Promise.resolve({ data: cartGroupData });
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},
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// 选择单个商品
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// 注：实际场景时应该调用接口更改选中状态
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selectGoodsService({ spuId, skuId, isSelected }) {
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this.findGoods(spuId, skuId).currentGoods.isSelected = isSelected;
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return Promise.resolve();
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},
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// 全选门店
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// 注：实际场景时应该调用接口更改选中状态
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selectStoreService({ storeId, isSelected }) {
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const currentStore = this.data.cartGroupData.storeGoods.find(
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(s) => s.storeId === storeId,
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);
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currentStore.isSelected = isSelected;
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currentStore.promotionGoodsList.forEach((activity) => {
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activity.goodsPromotionList.forEach((goods) => {
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goods.isSelected = isSelected;
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});
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});
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return Promise.resolve();
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},
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// 加购数量变更
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// 注：实际场景时应该调用接口
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changeQuantityService({ spuId, skuId, quantity }) {
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this.findGoods(spuId, skuId).currentGoods.quantity = quantity;
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return Promise.resolve();
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},
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// 删除加购商品
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// 注：实际场景时应该调用接口
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deleteGoodsService({ spuId, skuId }) {
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function deleteGoods(group) {
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for (const gindex in group) {
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const goods = group[gindex];
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if (goods.spuId === spuId && goods.skuId === skuId) {
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group.splice(gindex, 1);
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return gindex;
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}
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}
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return -1;
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}
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const { storeGoods, invalidGoodItems } = this.data.cartGroupData;
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for (const store of storeGoods) {
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for (const activity of store.promotionGoodsList) {
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if (deleteGoods(activity.goodsPromotionList) > -1) {
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return Promise.resolve();
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}
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}
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if (deleteGoods(store.shortageGoodsList) > -1) {
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return Promise.resolve();
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}
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}
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if (deleteGoods(invalidGoodItems) > -1) {
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return Promise.resolve();
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}
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return Promise.reject();
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},
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// 清空失效商品
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// 注：实际场景时应该调用接口
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clearInvalidGoodsService() {
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this.data.cartGroupData.invalidGoodItems = [];
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return Promise.resolve();
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},
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onGoodsSelect(e) {
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const {
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goods: { spuId, skuId },
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isSelected,
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} = e.detail;
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const { currentGoods } = this.findGoods(spuId, skuId);
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Toast({
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context: this,
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selector: '#t-toast',
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message: `${isSelected ? '选择' : '取消'}"${
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currentGoods.title.length > 5
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? `${currentGoods.title.slice(0, 5)}...`
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: currentGoods.title
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}"`,
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icon: '',
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});
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this.selectGoodsService({ spuId, skuId, isSelected }).then(() =>
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this.refreshData(),
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);
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},
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onStoreSelect(e) {
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const {
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store: { storeId },
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isSelected,
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} = e.detail;
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this.selectStoreService({ storeId, isSelected }).then(() =>
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this.refreshData(),
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);
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},
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onQuantityChange(e) {
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const {
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goods: { spuId, skuId },
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quantity,
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} = e.detail;
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const { currentGoods } = this.findGoods(spuId, skuId);
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const stockQuantity =
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currentGoods.stockQuantity > 0 ? currentGoods.stockQuantity : 0; // 避免后端返回的是-1
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// 加购数量超过库存数量
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if (quantity > stockQuantity) {
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// 加购数量等于库存数量的情况下继续加购
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if (
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currentGoods.quantity === stockQuantity &&
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quantity - stockQuantity === 1
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) {
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Toast({
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context: this,
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selector: '#t-toast',
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message: '当前商品库存不足',
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});
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return;
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}
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Dialog.confirm({
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title: '商品库存不足',
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content: `当前商品库存不足，最大可购买数量为${stockQuantity}件`,
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confirmBtn: '修改为最大可购买数量',
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cancelBtn: '取消',
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})
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.then(() => {
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this.changeQuantityService({
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spuId,
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skuId,
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quantity: stockQuantity,
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}).then(() => this.refreshData());
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})
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.catch(() => {});
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return;
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}
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this.changeQuantityService({ spuId, skuId, quantity }).then(() =>
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this.refreshData(),
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);
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},
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goCollect() {
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/** 活动肯定有一个活动ID，用来获取活动banner，活动商品列表等 */
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const promotionID = '123';
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wx.navigateTo({
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url: `/pages/promotion-detail/index?promotion_id=${promotionID}`,
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});
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},
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goGoodsDetail(e) {
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const { spuId, storeId } = e.detail.goods;
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wx.navigateTo({
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url: `/pages/goods/details/index?spuId=${spuId}&storeId=${storeId}`,
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});
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},
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clearInvalidGoods() {
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// 实际场景时应该调用接口清空失效商品
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this.clearInvalidGoodsService().then(() => this.refreshData());
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},
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onGoodsDelete(e) {
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const {
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goods: { spuId, skuId },
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} = e.detail;
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Dialog.confirm({
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content: '确认删除该商品吗?',
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confirmBtn: '确定',
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cancelBtn: '取消',
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}).then(() => {
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this.deleteGoodsService({ spuId, skuId }).then(() => {
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Toast({ context: this, selector: '#t-toast', message: '商品删除成功' });
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this.refreshData();
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});
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});
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},
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onSelectAll(event) {
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const { isAllSelected } = event?.detail ?? {};
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Toast({
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context: this,
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selector: '#t-toast',
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message: `${isAllSelected ? '取消' : '点击'}了全选按钮`,
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});
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// 调用接口改变全选
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},
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onToSettle() {
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const goodsRequestList = [];
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this.data.cartGroupData.storeGoods.forEach((store) => {
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store.promotionGoodsList.forEach((promotion) => {
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promotion.goodsPromotionList.forEach((m) => {
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if (m.isSelected == 1) {
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goodsRequestList.push(m);
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}
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});
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});
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});
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wx.setStorageSync(
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'order.goodsRequestList',
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JSON.stringify(goodsRequestList),
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);
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wx.navigateTo({ url: '/pages/order/order-confirm/index?type=cart' });
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},
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onGotoHome() {
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wx.switchTab({ url: '/pages/home/home' });
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},
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});
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