Dapper map multiple joins Sql Query

Question

I want to map complex object to dapper result from query which has two inner joins. I know we\'ve solution to map one inner join but I want to map two inner joins result.

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Answer 1

I tried my best and solve it.

Here is the more easy and accurate solution as per me.:

var lookup = new Dictionary();
            var lookup2 = new Dictionary();
            connection.Query(@"
                    SELECT o.*, ol.*, ols.*
                    FROM orders_mstr o
                    INNER JOIN order_lines ol ON o.id = ol.order_id
                    INNER JOIN order_line_size_relations ols ON ol.id = ols.order_line_id           
                    ", (o, ol, ols) =>
            {
                OrderDetail orderDetail;
                if (!lookup.TryGetValue(o.id, out orderDetail))
                {
                    lookup.Add(o.id, orderDetail = o);
                }
                OrderLine orderLine;
                if (!lookup2.TryGetValue(ol.id, out orderLine))
                {
                    lookup2.Add(ol.id, orderLine = ol);
                    orderDetail.OrderLines.Add(orderLine);
                }
                orderLine.OrderLineSizes.Add(ols);
                return orderDetail;
            }).AsQueryable();

            var resultList = lookup.Values.ToList();