public Update(string targetdb = null)
{
excutParBag = new ExcutParBag_Update();
this.SetTargetDb(targetdb.ToSafeString());
((ExcutParBag_Update)excutParBag).excutEnum = ExcutEnum.Update;
((ExcutParBag_Update)excutParBag).SetType(typeof(T));
}
public UpdateIns(T data, string targetdb = null)
{
excutParBag = new ExcutParBag_Update();
this.SetTargetDb(targetdb.ToSafeString());
((ExcutParBag_Update)excutParBag).excutEnum = ExcutEnum.Update;
((ExcutParBag_Update)excutParBag).data = data;
}
//构建更新
protected override void UpdateCommandText()
{
base.UpdateCommandText();
ExcutParBag_Update bagPar = (ExcutParBag_Update)this.excutParBag;
StringBuilder updateSQL = new StringBuilder(); //update语句
StringBuilder whereSQL = new StringBuilder(); //update条件语句
updateSQL.Append("UPDATE ").Append(bagPar.tableName).Append(" SET ");
if (bagPar.condition != null)
{
whereSQL.AppendFormat(this.SetWhere(bagPar.condition));
}
if (bagPar.data != null)
{
whereSQL.Append(" WHERE ");
var keyValue = (from p in bagPar.PropertyFileds where p.isKey == true select p).FirstOrDefault();
var shortguid = "_" + Bitter.Tools.Utils.GuidExtends.ShortGuid();
whereSQL.AppendFormat(keyValue.filedName + "=@{0} ", keyValue.filedName + shortguid);
this.Parameters.Add("@" + keyValue.filedName + shortguid, keyValue.value, keyValue);
}
else
{
if (bagPar.condition != null)
{
whereSQL.Append(" WHERE ");
whereSQL.AppendFormat(this.SetWhere(bagPar.condition));
}
}
if (bagPar.updatePair != null && bagPar.updatePair.Count > 0)
{
foreach (UpdatePair p in bagPar.updatePair)
{
var pf = bagPar.PropertyFileds.Where(px => px.filedName == p.columnName).FirstOrDefault();
var shortguid = "_" + Bitter.Tools.Utils.GuidExtends.ShortGuid();
updateSQL.AppendFormat("{0}=@{1},", p.columnName, p.columnName + shortguid);
this.Parameters.Add("@" + p.columnName + shortguid, p.columnValue, pf);
}
}
else
{
if (bagPar.data != null)
{
foreach (var p in bagPar.PropertyFileds)
{
var shortguid = "_" + Bitter.Tools.Utils.GuidExtends.ShortGuid();
updateSQL.AppendFormat("{0}=@{1},", p.filedName, p.filedName + shortguid);
this.Parameters.Add("@" + p.filedName + shortguid, p.value, p);
}
}
}
this.CommandText = string.Format("{0}{1};", updateSQL.ToString().Substring(0, updateSQL.ToString().Length - 1), whereSQL.ToString());
}
public UpdateIns()
{
excutParBag = new ExcutParBag_Update();
}