Support pass-thru of Mongoid field alias (:as parameter)

[johnnyshields]

Support pass-thru of Mongoid field alias (:as parameter) to underlying Mongoid Orderable field

Example:

orderable column: :pos, as: :position

This will store the orderable field in the DB as a minified name pos, however you can access it in Ruby as position

[pyromaniac]

Could you please add backward compatibility for mongoid 2?

[johnnyshields]

@pyromaniac this uses a native feature on mongoid which is only available in v3 and greater. In mongoid two, the parameter should not be used.

[pyromaniac]

Yeah, I know, but according to specs, you should add a respond_to?(:database_field_name) check https://travis-ci.org/pyromaniac/mongoid_orderable/jobs/12337830 to make this work.

[johnnyshields]

Done and passing. I had to make the modification to the spec itself, since actual code is backwards compatible.

[pyromaniac]

Thanks, merged