Add support for alias_attribute

[ghost]

For example, I'm working on top of a legacy database which has all it's column names in german. I use alias_attritbute to map english names to the german column names. If I were to use Ransack I would have to support using the german attributes as query params.

With this example:

class Location < ActiveRecord::Base
  self.table_name = 'orte'
  alias_attribute :code, :bezeichnung
end

The request /api/locations?q[code_eq]=bremen will not work. As it will construct the query as where orte.code = 'bremen', while it should be translated to where orte.bezeichnung = 'bremen' .

[jonatack]

Hello @martndemus, thank you for highlighting this. It seems like an edge case feature request rather than a bug with the current code. I do not plan to work on it, but encourage you to make a pull request it if it is worthwhile for you to add it to Ransack. Cheers!