Filtering on boolean properties?

[jwilliams-t3]

I have a model that has a boolean property 'protected'. In MySql it's stored as a tinyint with a value of 0 or 1. In my serializer I would like to filter on the property so I added:

can_filter_by :protected

Unfortunately, this means the url parameter must use 0 or 1 instead of 'true' or 'false':

http://localhost:3000/v1/profiles?protected=1

Is it possible to support 'true' or 'false'?

http://localhost:3000/v1/profiles?protected=true