refactor(PetaPoco): 字符串类型的主键为String.Empty保存失败

#Issue
link https://github.com/CollaboratingPlatypus/PetaPoco/issues/538

Bootstrap.DataAccess/Helper/DictHelper.cs

@@ -63,6 +63,7 @@ namespace Bootstrap.DataAccess
         {
             if (RetrieveSystemModel() && RetrieveProtectedDicts().Any(m => m.Id == p.Id)) return true;
 
+            if (p.Id == string.Empty) p.Id = null;
             var ret = DbContextManager.Create<Dict>().Save(p);
             if (ret) CacheCleanUtility.ClearCache(dictIds: new List<string>());
             return ret;

Bootstrap.DataAccess/Helper/GroupHelper.cs

@@ -38,6 +38,7 @@ namespace Bootstrap.DataAccess
         /// <returns></returns>
         public static bool Save(Group p)
         {
+            if (p.Id == string.Empty) p.Id = null;
             var ret = DbContextManager.Create<Group>().Save(p);
             if (ret) CacheCleanUtility.ClearCache(groupIds: string.IsNullOrEmpty(p.Id) ? new List<string>() : new List<string>() { p.Id });
             return ret;

Bootstrap.DataAccess/Helper/LogHelper.cs

@@ -24,6 +24,7 @@ namespace Bootstrap.DataAccess
         /// <returns></returns>
         public static bool Save(Log log)
         {
+            if (log.Id == string.Empty) log.Id = null;
             log.LogTime = DateTime.Now;
             return DbContextManager.Create<Log>().Save(log);
         }

Bootstrap.DataAccess/Helper/LoginHelper.cs

@@ -16,7 +16,11 @@ namespace Bootstrap.DataAccess
         /// </summary>
         /// <param name="userName"></param>
         /// <returns></returns>
-        public static bool Log(LoginUser user) => DbContextManager.Create<LoginUser>().Log(user);
+        public static bool Log(LoginUser user)
+        {
+            if (user.Id == string.Empty) user.Id = null;
+            return DbContextManager.Create<LoginUser>().Log(user);
+        }
 
         /// <summary>
         /// 查询指定页码登录日志

Bootstrap.DataAccess/Helper/MenuHelper.cs

@@ -45,6 +45,7 @@ namespace Bootstrap.DataAccess
                     }
                 }
             }
+            if (p.Id == string.Empty) p.Id = null;
             var ret = DbContextManager.Create<Menu>().Save(p);
             if (ret) CacheCleanUtility.ClearCache(menuIds: string.IsNullOrEmpty(p.Id) ? new List<string>() : new List<string>() { p.Id });
             return ret;

Bootstrap.DataAccess/Helper/ResetUserHelper.cs

@@ -14,6 +14,7 @@ namespace Bootstrap.DataAccess
         /// <returns></returns>
         public static bool Save(ResetUser user)
         {
+            if (user.Id == string.Empty) user.Id = null;
             user.ResetTime = DateTime.Now;
             return DbContextManager.Create<ResetUser>().Save(user);
         }

Bootstrap.DataAccess/Helper/RoleHelper.cs

@@ -68,6 +68,7 @@ namespace Bootstrap.DataAccess
             var roles = new string[] { "Administrators", "Default" };
             var rs = Retrieves().Where(r => roles.Any(rl => rl.Equals(r.RoleName, StringComparison.OrdinalIgnoreCase)));
             if (rs.Any(r => r.Id == p.Id)) return true;
+            if (p.Id == string.Empty) p.Id = null;
             var ret = DbContextManager.Create<Role>().Save(p);
             if (ret) CacheCleanUtility.ClearCache(roleIds: string.IsNullOrEmpty(p.Id) ? new List<string>() : new List<string> { p.Id });
             return ret;