public virtual void DeleteAll()
{
if (this.Id == 0)
{
throw new OOEngineException("此对象尚未被持久化,无法执行删除操作!");
}
string sqlPattern = "delete from {0};";
string sql = string.Format(sqlPattern, EInfo.EntityName);
try
{
DBSQLiteHelper.ExecuteUpdate(sql);
}
catch (Exception e)
{
throw new OOEngineException("在删除持久化对象时发生异常!" + e.Message);
}
}
/// <summary>
/// 更新持久化对象的属性
/// </summary>
public void Update()
{
if (this.Id == 0)
{
throw new OOEngineException("此对象尚未被持久化,请先执行新增操作后再执行此方法!");
}
string sqlPattern = "update {0} set {1} where Id={2};";
StringBuilder sbSetValue = new StringBuilder();
foreach (FieldAttribute pinfo in EInfo.Properties)
{
if (sbSetValue.Length > 0)
{
sbSetValue.Append(",");
}
sbSetValue.Append(string.Format("{0}={1}", pinfo.FieldName, DLLAnalysis.GetPropertyValue(this, pinfo)));
}
foreach (REFAttribute refobj in EInfo.References)
{
if (sbSetValue.Length > 0)
{
sbSetValue.Append(",");
}
sbSetValue.Append(string.Format("{0}={1}", refobj.REFFieldName, DLLAnalysis.GetReferenceEntityId(this, refobj.PropertyName)));
}
if (EInfo.REFSelf)
{
if (sbSetValue.Length > 0)
{
sbSetValue.Append(",");
}
sbSetValue.Append(string.Format("ParentId={0}", DLLAnalysis.GetReferenceEntityId(this, "Parent" + EInfo.EntityName)));
}
string sql = string.Format(sqlPattern, EInfo.EntityName, sbSetValue.ToString(), this.Id);
DBSQLiteHelper.ExecuteUpdate(sql);
}
