public bool Fill <T>(object obj, string table, Dictionary <string, object> attachedWhere) where T : class, new()
{
SqlExpressionArgs args = new SqlExpressionArgs();
args.Table = table;
args.Type = SqlExpressionType.Select;
if (attachedWhere == null)
{
args.GenerateWhere = true;
}
else
{
args.GenerateWhere = false;
args.AttachedWhere = AttachedWhereItem.Parse(attachedWhere);
}
//不能用 default(T) ，会是null
SqlExpression sqlExpression = RelationalMappingUnity.GetSqlExpression(obj, args);
DataSet ds = ExcuteDataSetSqlExpression(sqlExpression);
List <T> dataList = RelationalMappingUnity.Select <T>(ds.Tables[0]);
Debug.Assert(dataList.Count <= 1, "Fill 时取出的记录大于1条");
if (dataList.Count != 1)
{
return(false);
}
T dataObj = dataList[0];
ReflectionHelper.Inject(obj, dataObj);
return(true);
}
public static List <AttachedWhereItem> Parse(Dictionary <string, object> attachedWhere)
{
List <AttachedWhereItem> list = new List <AttachedWhereItem>();
if (attachedWhere == null || attachedWhere.Count == 0)
{
return(list);
}
foreach (var item in attachedWhere)
{
AttachedWhereItem attachedWhereItem = new AttachedWhereItem();
attachedWhereItem.Field = item.Key;
attachedWhereItem.Value = item.Value;
list.Add(attachedWhereItem);
}
return(list);
}
public List <T> Select <T>(Dictionary <string, object> attachedWhere, SqlExpressionPagingArgs pagingArgs) where T : class, new()
{
return(Select <T>(AttachedWhereItem.Parse(attachedWhere), pagingArgs));
}
public List <T> Select <T>(Dictionary <string, object> attachedWhere) where T : class, new()
{
return(Select <T>(AttachedWhereItem.Parse(attachedWhere), null));
}
