/// <summary>
/// 删除obj对象
/// </summary>
public static bool Delete(OracleConnection connection, object obj)
{
Type type = obj.GetType();
StringBuilder strSql = new StringBuilder();
try
{
strSql.Append(string.Format("delete from {0}", DBAttribute.getDBTable(type)));
}
catch (ArgumentException e)
{
throw new ArgumentException("Invaild Argument!\n\n from Delete(OracleConnection connection, object obj) \n");
}
List <string> propertyPrimaryKeyList = new List <string>();
List <string> propertyPrimaryValueList = new List <string>();
DBAttribute.getDBPrimaryElement(type, obj, propertyPrimaryKeyList, propertyPrimaryValueList);
if (!(propertyPrimaryKeyList.Any() && propertyPrimaryValueList.Any()))
{
throw new ArgumentException("Invaild Argument!\n\n from Delete(OracleConnection connection, object obj) \n");
}
strSql.Append(string.Format(" where "));
for (int i = 0; i < propertyPrimaryKeyList.Count; ++i)
{
strSql.Append(string.Format(" {0}={1} AND", propertyPrimaryKeyList[i], propertyPrimaryValueList[i]));
}
strSql.Length -= 3;
return(ExecuteSql(connection, strSql.ToString()) > 0);
}
public static bool existObj(object obj)
{
List <string> prikey = new List <string>(), prival = new List <string>();
DBAttribute.getDBPrimaryElement(obj.GetType(), obj, prikey, prival);
return(exist(obj.GetType(), prikey, prival));
}
public static T getObject <T>(T Obj)
{
OracleConnection conn = pool.fetchConnection();
StringBuilder sb = new StringBuilder();
sb.Append(string.Format("select * from {0} where ", DBAttribute.getDBTable(typeof(T))));
List <string> key = new List <string>(), val = new List <string>();
DBAttribute.getDBPrimaryElement(typeof(T), Obj, key, val);
int len = key.Count();
for (int i = 0; i < len; ++i)
{
sb.Append(string.Format(" {0}={1} AND ", key[i], val[i]));
}
sb.Length -= 4;
List <T> lt = testQuery <T>(sb.ToString());
T res = lt.Count() == 0?Obj:lt[0];
pool.releaseConnection(conn);
return(res);
}