I have the following two class definitions:
public class Location : Doc
{
public string Country { get; set; }
public string Region { get; set; }
public string City { get; set; }
public string PostalCode { get; set; }
public Double Latitude { get; set; }
public Double Longitude { get; set; }
public string MetroCode { get; set; }
public string AreaCode { get; set; }
public List<IpRange> IpRanges { get; set; }
}
and
public class IpRange
{
public long Start { get; set; }
public long End { get; set; }
}
I have an index defined as follows:
public class Locations_ByRange : AbstractIndexCreationTask<Location>
{
public Locations_ByRange()
{
Map = locations =>
from location in locations
from range in location.IpRanges
select new
{
range.Start,
range.End
};
}
}
I then try to query the index as follows:
var queryable = DocumentSession.Query<IpRange, Locations_ByRange>()
.FirstOrDefault(x => x.Start <= reverseIp && x.End >= reverseIp) ?? new IpRange();
But, I am met with the following error when running the query:
Exception Details: System.InvalidCastException: Unable to cast object of type 'Jodolo.Data.Locations.Location' to type 'Jodolo.Data.Locations.IpRange'.
And, here is the StackTrace:
[InvalidCastException: Unable to cast object of type 'Jodolo.Data.Locations.Location' to type 'Jodolo.Data.Locations.IpRange'.]
Raven.Client.Document.InMemoryDocumentSessionOperations.TrackEntity(String key, RavenJObject document, RavenJObject metadata, Boolean noTracking) in c:\Builds\RavenDB-Stable\Raven.Client.Lightweight\Document\InMemoryDocumentSessionOperations.cs:357
Raven.Client.Document.SessionOperations.QueryOperation.Deserialize(RavenJObject result) in c:\Builds\RavenDB-Stable\Raven.Client.Lightweight\Document\SessionOperations\QueryOperation.cs:167
System.Linq.WhereSelectListIterator`2.MoveNext() +104
System.Collections.Generic.List`1..ctor(IEnumerable`1 collection) +381
System.Linq.Enumerable.ToList(IEnumerable`1 source) +58
Raven.Client.Document.SessionOperations.QueryOperation.Complete() in c:\Builds\RavenDB-Stable\Raven.Client.Lightweight\Document\SessionOperations\QueryOperation.cs:143
Raven.Client.Document.AbstractDocumentQuery`2.GetEnumerator() in c:\Builds\RavenDB-Stable\Raven.Client.Lightweight\Document\AbstractDocumentQuery.cs:891
System.Linq.Enumerable.FirstOrDefault(IEnumerable`1 source) +152
Raven.Client.Linq.RavenQueryProviderProcessor`1.GetQueryResult(IDocumentQuery`1 finalQuery) in c:\Builds\RavenDB-Stable\Raven.Client.Lightweight\Linq\RavenQueryProviderProcessor.cs:1529
Raven.Client.Linq.RavenQueryProviderProcessor`1.ExecuteQuery() in c:\Builds\RavenDB-Stable\Raven.Client.Lightweight\Linq\RavenQueryProviderProcessor.cs:1454
Raven.Client.Linq.RavenQueryProviderProcessor`1.Execute(Expression expression) in c:\Builds\RavenDB-Stable\Raven.Client.Lightweight\Linq\RavenQueryProviderProcessor.cs:1427
Raven.Client.Linq.RavenQueryProvider`1.Execute(Expression expression) in c:\Builds\RavenDB-Stable\Raven.Client.Lightweight\Linq\RavenQueryProvider.cs:155
Raven.Client.Linq.RavenQueryProvider`1.System.Linq.IQueryProvider.Execute(Expression expression) in c:\Builds\RavenDB-Stable\Raven.Client.Lightweight\Linq\RavenQueryProvider.cs:198
System.Linq.Queryable.FirstOrDefault(IQueryable`1 source, Expression`1 predicate) +287
.
.
.
I am somewhat pleased to see this, because ultimately I am trying to retrieve the Location document that satisfies the query parameters. It's clear that I can change the type declaration on the query call to
.Query<Location, Locations_ByRange>()
But, I then have trouble figuring out how to query the fields stored in the index; since there are no Start and End fields defined for a Location object.
Any help with this would be greatly appreciated.