/// <summary>
/// 根据MyId的主键获取拆分表名
/// </summary>
/// <param name="type">对应的数据库映射信息</param>
/// <param name="myId">MyId主键值</param>
/// <returns></returns>
internal static string GetTableName(DBMap.DBTable table, object myId)
{
if (table.SeparateType == SeparateType.None)
{
return(table.Name);
}
return(GetTableName(table, MyIdMake.GetMyIdDate(myId)));
}
/// <summary>
/// 获取表拆分的表名
/// </summary>
/// <param name="table"></param>
/// <param name="sType"></param>
/// <param name="date"></param>
/// <param name="sign"></param>
/// <returns></returns>
private static string GetFormatTableName(DBMap.DBTable table, SeparateType sType, DateTime date)
{
switch (sType)
{
case SeparateType.Year:
return(string.Format("{0}_{1}", table.Name, date.Year));
case SeparateType.JiDu:
return(string.Format("{0}_{1}", table.Name, GetJiDu(date)));
case SeparateType.Mouth:
return(string.Format("{0}_{1}", table.Name, date.ToString("yyyyMM")));
case SeparateType.Day:
return(string.Format("{0}_{1}", table.Name, date.ToString("yyyyMMdd")));
}
return(table.Name);
}
/// <summary>
/// 根据时间获取对应的拆分表名
/// </summary>
/// <param name="table">对应的数据库映射信息</param>
/// <param name="date">主键时间</param>
/// <returns>返回拆分的表名</returns>
internal static string GetTableName(DBMap.DBTable table, DateTime date)
{
if (table.SeparateType == SeparateType.None)
{
return(table.Name);
}
//获取表名
string tbName = GetFormatTableName(table, table.SeparateType, date);
if (string.IsNullOrWhiteSpace(tbName))
{
return(table.Name);
}
if (tbName.Equals(table.Name))
{
return(table.Name);
}
//判断表是否已存在验证
ConcurrentBag <string> cb = null;
if (!_cdCheckDate.TryGetValue(table.MapType.FullName, out cb))
{
_cdCheckDate.TryAdd(table.MapType.FullName, cb = new ConcurrentBag <string>());
}
//如果不存在，则验证数据库中是否存在该表
if (!cb.Contains(tbName))
{
//验证表在数据库中是否存在
if (CheckTableAndCreate(table, tbName))
{
cb.Add(tbName);
}
else
{
//如果数据库中不存在该分表，则返回默认的表名
return(table.Name);
}
}
return(tbName);
}
