Question

I am looking to do the following with a single database query if possible.

public class Location {     public string URL {get;set;}     public IList<Page> Pages {get;set;} }  Page firstPage = Session.Linq<Location>()                 .Where(location => location.URL == 'some-location-url')                 .Select(location => location.Pages).FirstOrDefault(); 

My aim is based on the current location url, return the first Page object from its pages collection.

I have tried a number of different ways now and they all seem to execute many queries to get the desired Page object out.

Any help is appreciated!

Dave the Ninja

Answer 1

This might be what your looking for:

Page firstPage = Session.Linq<Page>() .OrderBy(page => page.Index) .FirstOrDefault(page=> page.Location.URL == 'some-location-url'); 

I’m making the assumption that the page has a Location property that relates back to the Location it belongs to and the .Index would be the property you want to order with.