Question

I have a ravendb class like such:

        public class Student
        {
            public string Id { get; set; }
            public string TopLevelProperty { get; set; }
            public Dictionary<string, string> Attributes { get; set; }
            public Dictionary<string,List<Dictionary<string, string>>> CategoryAttributes { get; set; }
        }

and a document like so:

The following linq will not work due to a selectmany:

                test = (from student in session.Query()
                        from eduhistory in student.CategoryAttributes["EducationHistory"]
                        where eduhistory["StartYear"] == "2009"
                              select student).ToList();

How can I get all students where StartYear == 2009?

Answer 1

This does it :

test = session.Advanced.LuceneQuery()
            .Where("CategoryAttributes.EducationHistory,StartYear:2009")
            .ToList();

Notice the comma rather than a dot after EducationHistory. This indicates that we are looking at the list to find a property in one of the items named StartYear.
If I wanted greater than :

test = session.Advanced.LuceneQuery()
            .Where("CategoryAttributes.EducationHistory,StartYear:[2009 TO null]")
            .ToList();

etc etc.