fix building sortable query from ActionController::Parameters in Rails 5

[karwank]

I had to add this metthod in Rails 5 because ActionController::Parameters object doesn't return simple hash as default. I don't know how it works with previous versions of Rails.

[hunterae]

Hey @karwank . Was this breaking in Rails 5, or just generating the wrong sort url (i.e. one that had the controller and action as url params)? Is it the parameters.delete call that wasn't working properly. This code will not work in Rails 3, and possibly Rails 4 if strong params is not turned on, as that #to_unsafe_h call does not seem to be available to normal hashes.

[scottrobertson]

@hunterae just to confirm, this is breaking in rails 5. I have had to remove sortable: true for now. I am getting:

ruby-2.2.3/gems/table-for-3.6.0/app/views/table_for/_table_for.html.erb where line #29 raised:
wrong number of arguments (0 for 1)

[hunterae]

@scottrobertson : Can you please provide some details about how to reproduce? Is it just by adding sortable: true to a table_for call that renders a collection of ActiveRecord objects?

[lafeber]

@hunterae yes, just by adding sortable: true it breaks. The reason the tests break is due to byebug... the forked version works for me!

[hunterae]

@karwank / @scottrobertson / @lafeber : I have merge the essence of this PR and it can be found by upgrading to version 3.6.1. Thanks everybody.