/// <summary>
/// 按 No 查询。
/// </summary>
/// <returns></returns>
public int RetrieveByNo()
{
QueryObject qo = new QueryObject(this);
qo.AddWhere(EntityNoAttr.No, this.No);
return(qo.DoQuery());
}
/// <summary>
/// 按语言查询。
/// </summary>
public void RetrieveByLanguageNo(string LanguageNo)
{
QueryObject qo = new QueryObject(this);
qo.AddWhere("LanguageNo", LanguageNo);
qo.DoQuery();
}
/// <summary>
/// 按照名称查询。
/// </summary>
/// <returns>返回查询出来的个数</returns>
public int RetrieveByName()
{
QueryObject qo = new QueryObject(this);
qo.AddWhere("Name", this.Name);
return(qo.DoQuery());
}
/// <summary>
/// 按照名称模糊查询
/// </summary>
/// <param name="likeName">likeName</param>
/// <returns>返回查询的Num</returns>
public int RetrieveByLikeName(string likeName)
{
QueryObject qo = new QueryObject(this);
qo.AddWhere("Name", "like", " %" + likeName + "% ");
return(qo.DoQuery());
}
/// <summary>
/// 提供通过一个实体的 val 查询另外的实体集合。
/// </summary>
/// <param name="attr">属性</param>
/// <param name="val">植</param>
/// <param name="refEns">关联的集合</param>
/// <returns>关联的集合</returns>
protected Entities throwOneKeyValGetRefEntities(string attr, string val, Entities refEns)
{
QueryObject qo = new QueryObject(refEns);
qo.AddWhere(attr, val);
return(refEns);
}
/// <summary>
/// 根据MID构造实体
/// </summary>
/// <param name="MID">MID</param>
protected EntityMID(int mid)
{
this.SetValByKey(EntityMIDAttr.MID, MID);
QueryObject qo = new QueryObject(this);
qo.AddWhere(EntityMIDAttr.MID, mid);
if (qo.DoQuery() == 0)
{
throw new Exception("没有查询到MID=" + mid + "的实例。");
}
//this.Retrieve();
}
public override int Retrieve()
{
if (this.MID == 0)
{
return(base.Retrieve());
}
else
{
QueryObject qo = new QueryObject(this);
qo.AddWhere("MID", this.MID);
if (qo.DoQuery() == 0)
{
throw new Exception("没有此记录:MID=" + this.MID);
}
else
{
return(1);
}
}
}
