public async Task <QueryResult <ScheduleActionGroup> > QueryByPage(string name, int page, int pageSize)
{
QueryResult <ScheduleActionGroup> result = new QueryResult <ScheduleActionGroup>();
await DBTransactionHelper.SqlTransactionWorkAsync(DBTypes.SqlServer, true, false, _dbConnectionFactory.CreateReadForSchedule(), async (conn, transaction) =>
{
SqlTransaction sqlTran = null;
if (transaction != null)
{
sqlTran = (SqlTransaction)transaction;
}
await using (SqlCommand command = new SqlCommand()
{
Connection = (SqlConnection)conn,
CommandType = CommandType.Text,
CommandText = string.Format(@"SET @currentpage = @page;
SELECT @count = COUNT(*)
FROM [dbo].[ScheduleActionGroup]
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 [dbo].[ScheduleActionGroup]
WHERE name like @name
ORDER BY sequence OFFSET (@pagesize * (@currentpage - 1)) ROWS FETCH NEXT @pagesize ROWS ONLY;",
StoreHelper.GetScheduleActionGroupSelectFields(string.Empty)),
Transaction = sqlTran
})
{
var parameter = new SqlParameter("@name", SqlDbType.VarChar, 200)
{
Value = string.Format("{0}%", name.ToSqlLike())
};
command.Parameters.Add(parameter);
parameter = new SqlParameter("@page", SqlDbType.Int)
{
Value = page
};
command.Parameters.Add(parameter);
parameter = new SqlParameter("@pagesize", SqlDbType.Int)
{
Value = pageSize
};
command.Parameters.Add(parameter);
parameter = new SqlParameter("@count", SqlDbType.Int)
{
Direction = ParameterDirection.Output
};
command.Parameters.Add(parameter);
parameter = new SqlParameter("@currentpage", SqlDbType.Int)
{
Direction = ParameterDirection.Output
};
command.Parameters.Add(parameter);
await command.PrepareAsync();
SqlDataReader reader = null;
await using (reader = await command.ExecuteReaderAsync())
{
while (await reader.ReadAsync())
{
var scheduleActionGroup = new ScheduleActionGroup();
StoreHelper.SetScheduleActionGroupSelectFields(scheduleActionGroup, reader, string.Empty);
result.Results.Add(scheduleActionGroup);
}
await reader.CloseAsync();
result.TotalCount = (int)command.Parameters["@count"].Value;
result.CurrentPage = (int)command.Parameters["@currentpage"].Value;
}
}
});
return(result);
}
public async Task <ScheduleActionGroup> QueryByName(string name)
{
ScheduleActionGroup result = null;
await DBTransactionHelper.SqlTransactionWorkAsync(DBTypes.SqlServer, true, false, _dbConnectionFactory.CreateReadForSchedule(), async (conn, transaction) =>
{
SqlTransaction sqlTran = null;
if (transaction != null)
{
sqlTran = (SqlTransaction)transaction;
}
await using (SqlCommand command = new SqlCommand()
{
Connection = (SqlConnection)conn,
CommandType = CommandType.Text,
CommandText = string.Format(@"select {0} from [dbo].[ScheduleActionGroup] where [name] = @name", StoreHelper.GetScheduleActionGroupSelectFields(string.Empty)),
Transaction = sqlTran
})
{
var parameter = new SqlParameter("@name", SqlDbType.VarChar, 150)
{
Value = name
};
command.Parameters.Add(parameter);
await command.PrepareAsync();
SqlDataReader reader = null;
await using (reader = await command.ExecuteReaderAsync())
{
if (await reader.ReadAsync())
{
result = new ScheduleActionGroup();
StoreHelper.SetScheduleActionGroupSelectFields(result, reader, string.Empty);
}
await reader.CloseAsync();
}
}
});
return(result);
}
