添加项目文件。

CoreCms.Net.Repository/Cart/CoreCmsCartRepository.cs

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+/***********************************************************************
+ *            Project: CoreCms
+ *        ProjectName: 核心内容管理系统                                
+ *                Web: https://www.corecms.net                      
+ *             Author: 大灰灰                                          
+ *              Email: jianweie@163.com                                
+ *         CreateTime: 2021/1/31 21:45:10
+ *        Description: 暂无
+ ***********************************************************************/
+
+using System.Threading.Tasks;
+using CoreCms.Net.Configuration;
+using CoreCms.Net.IRepository;
+using CoreCms.Net.IRepository.UnitOfWork;
+using CoreCms.Net.Model.Entities;
+using SqlSugar;
+
+namespace CoreCms.Net.Repository
+{
+    /// <summary>
+    ///     购物车表 接口实现
+    /// </summary>
+    public class CoreCmsCartRepository : BaseRepository<CoreCmsCart>, ICoreCmsCartRepository
+    {
+        public CoreCmsCartRepository(IUnitOfWork unitOfWork) : base(unitOfWork)
+        {
+        }
+
+
+        #region 获取购物车用户数据总数
+
+        /// <summary>
+        ///     获取购物车用户数据总数
+        /// </summary>
+        /// <returns></returns>
+        public async Task<int> GetCountAsync(int userId)
+        {
+            var count = DbClient.Queryable<CoreCmsCart, CoreCmsProducts, CoreCmsGoods>((cart, products, goods) =>
+                    new object[]
+                    {
+                        JoinType.Inner, cart.productId == products.id,
+                        JoinType.Inner, products.goodsId == goods.id
+                    })
+                .Where((cart, products, goods) => cart.type == (int) GlobalEnumVars.OrderType.Common)
+                .Select((cart, products, goods) => new {cart.id, cart.userId, goodId = goods.id})
+                .MergeTable()
+                .CountAsync(p => p.userId == userId);
+            return await count;
+        }
+
+        #endregion
+    }
+}