private MemberInfo FindMemberSetByParameter(SelectQueryData.JoinSpec join, int paramIndex)
{
var newExpr = join.ResultSelector.Body as NewExpression;
if (newExpr != null)
{
var index = newExpr.Arguments.TakeWhile(a => a != join.ResultSelector.Parameters[paramIndex]).Count();
if (index < newExpr.Members.Count)
{
return(newExpr.Members[index]);
}
}
return(null);
}
private string GetJoinClauseText(SelectQueryData.JoinSpec join)
{
var alias = subQueryPrefix + join.ResultSelector.Parameters[1].Name;
var member = FindMemberSetByParameter(join, 1);
if (member != null)
{
aliases[member] = alias;
}
string innerData = "[" + nameResolver.ResolveTableName(join.InnerData.ModelType) + "]";
var clause = string.Format(" {0} JOIN {1} [{2}] ON {3} = {4}",
join.JoinType,
GetJoinSourceSql(join.InnerData),
alias,
GetOuterKeyColumn(join.OuterKeySelector.Body),
GetInnerKeyColumn(join.InnerKeySelector.Body, alias));
if (lastTableAlias != null)
{
lastTableAlias = alias;
}
return(clause);
}
