Can't create query terms with enum types

[cherrydev]

Any time I use a enum type in a query clause, I get an error about not being able to cast an Int32 to the enum type. Mapping the field with a typeconverter doesn't help, as it appears that this is not used for transforming term values, only when storing or reading. There IS a bizarre work-around. If I cast BOTH sides of the term of the query to an object, it behaves correctly.

So, this results in an exception:

provider.SaQueryable<MyMappedType>().Where(x => x.EnumField != MyEnumType.SomeValue);

This does not:

provider.SaQueryable<MyMappedType>().Where(x => ((object)x.EnumField) != ((object)MyEnumType.SomeValue));

[cherrydev]

Associated stack-trace:

   at System.Convert.DefaultToType(IConvertible value, Type targetType, IFormatProvider provider)
   at System.Int32.System.IConvertible.ToType(Type type, IFormatProvider provider)
   at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider)
   at System.Convert.ChangeType(Object value, Type conversionType)
   at Lucene.Net.Linq.Transformation.TreeVisitors.NoOpConvertExpressionRemovingVisitor.ConvertIfNecessary(Expression expression, Type type)
   at Lucene.Net.Linq.Transformation.TreeVisitors.NoOpConvertExpressionRemovingVisitor.VisitBinaryExpression(BinaryExpression expression)
   at Remotion.Linq.Parsing.ExpressionTreeVisitor.VisitExpression(Expression expression)
   at Remotion.Linq.Clauses.WhereClause.TransformExpressions(Func`2 transformation)
   at Lucene.Net.Linq.Transformation.QueryModelTransformer.VisitWhereClause(WhereClause whereClause, QueryModel queryModel, Int32 index)
   at Remotion.Linq.Clauses.WhereClause.Accept(IQueryModelVisitor visitor, QueryModel queryModel, Int32 index)
   at Remotion.Linq.QueryModelVisitorBase.VisitBodyClauses(ObservableCollection`1 bodyClauses, QueryModel queryModel)
   at Remotion.Linq.QueryModelVisitorBase.VisitQueryModel(QueryModel queryModel)
   at Remotion.Linq.QueryModel.Accept(IQueryModelVisitor visitor)
   at Lucene.Net.Linq.LuceneQueryExecutorBase`1.PrepareQuery(QueryModel queryModel)
   at Lucene.Net.Linq.LuceneQueryExecutorBase`1.ExecuteScalar[T](QueryModel queryModel)
   at Remotion.Linq.Clauses.StreamedData.StreamedScalarValueInfo.ExecuteScalarQueryModel[T](QueryModel queryModel, IQueryExecutor executor)
   at Remotion.Linq.Clauses.StreamedData.StreamedScalarValueInfo.ExecuteQueryModel(QueryModel queryModel, IQueryExecutor executor)
   at Remotion.Linq.QueryModel.Execute(IQueryExecutor executor)
   at Remotion.Linq.QueryProviderBase.Execute(Expression expression)
   at Remotion.Linq.QueryProviderBase.System.Linq.IQueryProvider.Execute[TResult](Expression expression)
   at System.Linq.Queryable.Count[TSource](IQueryable`1 source)

[chriseldredge]

Fixed in b5f939b12fc1473aa7f79a446e68fc9cac47e24a, will close issue after releasing to nuget.org.

[cherrydev]

Fantastic, thanks. Any plans to make a release soon?

[chriseldredge]

Thanks for the nudge... been busy with other work recently, but since nothing else has come up on this project I'll try to release this week.

[chriseldredge]

Released: https://nuget.org/packages/Lucene.Net.Linq/3.2.54