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DouyinApi.Services/UserRoleServices.cs

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+using DouyinApi.Common;
+using DouyinApi.IRepository.Base;
+using DouyinApi.IServices;
+using DouyinApi.Model.Models;
+using DouyinApi.Services.BASE;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace DouyinApi.Services
+{
+    /// <summary>
+    /// UserRoleServices
+    /// </summary>	
+    public class UserRoleServices : BaseServices<UserRole>, IUserRoleServices
+    {
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="uid"></param>
+        /// <param name="rid"></param>
+        /// <returns></returns>
+        public async Task<UserRole> SaveUserRole(long uid, long rid)
+        {
+            UserRole userRole = new UserRole(uid, rid);
+
+            UserRole model = new UserRole();
+            var userList = await base.Query(a => a.UserId == userRole.UserId && a.RoleId == userRole.RoleId);
+            if (userList.Count > 0)
+            {
+                model = userList.FirstOrDefault();
+            }
+            else
+            {
+                var id = await base.Add(userRole);
+                model = await base.QueryById(id);
+            }
+
+            return model;
+
+        }
+
+
+
+        [Caching(AbsoluteExpiration = 30)]
+        public async Task<int> GetRoleIdByUid(long uid)
+        {
+            return ((await base.Query(d => d.UserId == uid)).OrderByDescending(d => d.Id).LastOrDefault()?.RoleId).ObjToInt();
+        }
+    }
+}