/// <summary>
/// 返回强类型结果选择
/// </summary>
/// <param name="resultSelector"></param>
/// <returns></returns>
public LambdaQueryResultSelect <TJoinResult, TJoinResult2> Select <TJoinResult2>(Expression <Func <T, TJoinResult, TJoinResult2> > resultSelector)
where TJoinResult2 : class
{
var resultFields = BaseQuery.GetSelectField(true, resultSelector.Body, false, typeof(T), typeof(TJoin));
var prefix1 = BaseQuery.GetPrefix(typeof(TJoinResult));
var prefix2 = BaseQuery.GetPrefix(typeof(TJoin));
foreach (var item in resultFields)
{
if (item.QueryFullScript.StartsWith(prefix1))
{
item.QueryFullScript = item.QueryFullScript.Replace(prefix1, prefix2);
}
}
BaseQuery.__QueryFields = resultFields;
return(new LambdaQueryResultSelect <TJoinResult, TJoinResult2>(BaseQuery, resultSelector.Body));
}
/// <summary>
/// 返回强类型结果选择
/// </summary>
/// <param name="resultSelector"></param>
/// <returns></returns>
public LambdaQueryResultSelect <TJoinResult2> Select <TJoinResult2>(Expression <Func <T, TJoinResult, TJoinResult2> > resultSelector)
where TJoinResult2 : class
{
var parameters = resultSelector.Parameters.Select(b => b.Type).ToArray();
var selectField = BaseQuery.GetSelectField(true, resultSelector.Body, false, parameters);
var resultFields = selectField.mapping;
var prefix1 = BaseQuery.GetPrefix(typeof(TJoinResult));
var prefix2 = BaseQuery.GetPrefix(resultSelect.InnerType);
//替换匿名前辍
foreach (var item in resultFields)
{
if (item.QueryFull.Contains(prefix1))
{
item.QueryFull = item.QueryFull.Replace(prefix1, prefix2);
}
}
//selectField.queryFieldString = BaseQuery.GetQueryFieldsString(resultFields);
BaseQuery.SetSelectFiled(selectField);
//BaseQuery.__QueryFields = resultFields;
return(new LambdaQueryResultSelect <TJoinResult2>(BaseQuery, resultSelector.Body));
}