/// <summary>
/// 更新函数
/// </summary>
/// <param name="info">Model</param>
/// <returns>影响数据物理ID，已存在逻辑主码返回-1</returns>
public int UPDATE(Maintenance info)
{
try
{
if (SELECT_BY_NAME_ISUSED(info.Name, true) != null)
{
return(-1);
}
U_maintenance temp = new U_maintenance();
Table <U_maintenance> table = db.GetTable <U_maintenance>();
temp = (from row in db.U_maintenance where row.id == info.Id select row).First();
//temp.id = info.Id;
temp.name = info.Name;
temp.isused = info.Isused;
db.SubmitChanges();
return(temp.id);
}
catch
{
return(-2);
}
}
/// <summary>
/// 根据逻辑主码查询
/// </summary>
/// <param name="name">名称</param>
/// <param name="isused">在用</param>
/// <returns>结果</returns>
public Maintenance SELECT_BY_NAME_ISUSED(string name, bool isused)
{
try
{
Maintenance rd = new Maintenance();
U_maintenance temp = (from row in db.U_maintenance where row.name == name && row.isused == isused select row).First();
rd.Id = temp.id;
rd.Name = temp.name;
rd.Isused = temp.isused;
return(rd);
}
catch
{
return(null);
}
}
/// <summary>
/// 根据物理主码查询
/// </summary>
/// <param name="id">id</param>
/// <returns>结果</returns>
public Maintenance SELECT_BY_ID(short id)
{
try
{
Maintenance rd = new Maintenance();
U_maintenance temp = (from row in db.U_maintenance where row.id == id select row).First();
rd.Id = temp.id;
rd.Name = temp.name;
rd.Isused = temp.isused;
return(rd);
}
catch
{
return(null);
}
}
/// <summary>
/// 逻辑删除
/// </summary>
/// <param name="id">物理主码</param>
/// <returns>影响数据物理ID</returns>
public int DELETE(short id)
{
try
{
U_maintenance temp = new U_maintenance();
Table <U_maintenance> table = db.GetTable <U_maintenance>();
temp = (from row in db.U_maintenance where row.id == id select row).First();
//temp.id = info.Id;
temp.isused = false;
db.SubmitChanges();
return(temp.id);
}
catch
{
return(-2);
}
}
/// <summary>
/// 插入函数
/// </summary>
/// <param name="info">Model</param>
/// <returns>影响数据物理ID，已存在逻辑主码项返-1</returns>
public int INSERT(Maintenance info)
{
try
{
if (SELECT_BY_NAME_ISUSED(info.Name, true) != null)
{
return(-1);
}
U_maintenance temp = new U_maintenance();
//temp.id = info.Id;
temp.name = info.Name;
temp.isused = info.Isused;
Table <U_maintenance> table = db.GetTable <U_maintenance>();
table.InsertOnSubmit(temp);
db.SubmitChanges();
return(temp.id);
}
catch
{
return(-2);
}
}
