public async Task <QueryResult <SystemOperation> > QueryByPage(int page, int pageSize) { QueryResult <SystemOperation> result = new QueryResult <SystemOperation>(); await DBTransactionHelper.SqlTransactionWorkAsync(DBTypes.SqlServer, true, false, _dbConnectionFactory.CreateReadForWhitelistPolicy(), async (conn, transaction) => { SqlTransaction sqlTran = null; if (transaction != null) { sqlTran = (SqlTransaction)transaction; } using (SqlCommand commond = new SqlCommand() { Connection = (SqlConnection)conn, CommandType = CommandType.Text, CommandText = string.Format(@"SET @currentpage = @page; SELECT @count = COUNT(*) FROM SystemOperation; IF @pagesize * @page >= @count BEGIN SET @currentpage = @count / @pagesize; IF @count % @pagesize <> 0 BEGIN SET @currentpage = @currentpage + 1; END; IF @currentpage = 0 SET @currentpage = 1; END; ELSE IF @page < 1 BEGIN SET @currentpage = 1; END; SELECT {0} FROM SystemOperation ORDER BY sequence OFFSET (@pagesize * (@currentpage - 1)) ROWS FETCH NEXT @pagesize ROWS ONLY;", StoreHelper.GetSystemOperationSelectFields(string.Empty)), Transaction = sqlTran }) { var parameter = new SqlParameter("@page", SqlDbType.Int) { Value = page }; commond.Parameters.Add(parameter); parameter = new SqlParameter("@pagesize", SqlDbType.Int) { Value = pageSize }; commond.Parameters.Add(parameter); parameter = new SqlParameter("@count", SqlDbType.Int) { Direction = ParameterDirection.Output }; commond.Parameters.Add(parameter); parameter = new SqlParameter("@currentpage", SqlDbType.Int) { Direction = ParameterDirection.Output }; commond.Parameters.Add(parameter); commond.Prepare(); SqlDataReader reader = null; using (reader = await commond.ExecuteReaderAsync()) { while (await reader.ReadAsync()) { var systemOperation = new SystemOperation(); StoreHelper.SetSystemOperationSelectFields(systemOperation, reader, string.Empty); result.Results.Add(systemOperation); } reader.Close(); result.TotalCount = (int)commond.Parameters["@count"].Value; result.CurrentPage = (int)commond.Parameters["@currentpage"].Value; } } }); return(result); }
public async Task <QueryResult <SystemOperation> > QueryByPage(string name, int page, int pageSize) { QueryResult <SystemOperation> result = new QueryResult <SystemOperation>(); await DBTransactionHelper.SqlTransactionWorkAsync(DBTypes.SqlServer, true, false, _dbConnectionFactory.CreateReadForWhitelistPolicy(), async (conn, transaction) => { SqlTransaction sqlTran = null; if (transaction != null) { sqlTran = (SqlTransaction)transaction; } using (SqlCommand commond = new SqlCommand() { Connection = (SqlConnection)conn, CommandType = CommandType.Text, CommandText = string.Format(@"set @currentpage=@page select @count= count(*) from SystemOperation where [name] like @name if @pagesize*@page>=@count begin set @currentpage= @count/@pagesize if @count%@pagesize<>0 begin set @currentpage=@currentpage+1 end if @currentpage=0 set @currentpage=1 end else if @page<1 begin set @currentpage=1 end select {0} from SystemOperation where [name] like @name order by sequence offset (@pagesize * (@currentpage - 1)) rows fetch next @pagesize rows only;" , StoreHelper.GetSystemOperationSelectFields(string.Empty)), Transaction = sqlTran }) { var parameter = new SqlParameter("@page", SqlDbType.Int) { Value = page }; commond.Parameters.Add(parameter); parameter = new SqlParameter("@pagesize", SqlDbType.Int) { Value = pageSize }; commond.Parameters.Add(parameter); parameter = new SqlParameter("@name", SqlDbType.NVarChar, 100) { Value = $"{name.ToSqlLike()}%" }; commond.Parameters.Add(parameter); parameter = new SqlParameter("@count", SqlDbType.Int) { Direction = ParameterDirection.Output }; commond.Parameters.Add(parameter); parameter = new SqlParameter("@currentpage", SqlDbType.Int) { Direction = ParameterDirection.Output }; commond.Parameters.Add(parameter); commond.Prepare(); SqlDataReader reader = null; using (reader = await commond.ExecuteReaderAsync()) { while (await reader.ReadAsync()) { var systemOperation = new SystemOperation(); StoreHelper.SetSystemOperationSelectFields(systemOperation, reader, string.Empty); result.Results.Add(systemOperation); } reader.Close(); result.TotalCount = (int)commond.Parameters["@count"].Value; result.CurrentPage = (int)commond.Parameters["@currentpage"].Value; } } }); return(result); }
public async Task <SystemOperation> QueryByName(string name, int status) { SystemOperation result = null; await DBTransactionHelper.SqlTransactionWorkAsync(DBTypes.SqlServer, true, false, _dbConnectionFactory.CreateReadForWhitelistPolicy(), async (conn, transaction) => { SqlTransaction sqlTran = null; if (transaction != null) { sqlTran = (SqlTransaction)transaction; } using (SqlCommand commond = new SqlCommand() { Connection = (SqlConnection)conn, CommandType = CommandType.Text, CommandText = string.Format(@"select {0} from SystemOperation where [name]=@name and [status]=@status", StoreHelper.GetSystemOperationSelectFields(string.Empty)), Transaction = sqlTran }) { var parameter = new SqlParameter("@name", SqlDbType.NVarChar, 500) { Value = name }; commond.Parameters.Add(parameter); parameter = new SqlParameter("@status", SqlDbType.Int) { Value = status }; commond.Parameters.Add(parameter); commond.Prepare(); SqlDataReader reader = null; using (reader = await commond.ExecuteReaderAsync()) { if (await reader.ReadAsync()) { result = new SystemOperation(); StoreHelper.SetSystemOperationSelectFields(result, reader, string.Empty); } reader.Close(); } } }); return(result); }