Rails Unable to convert unpermitted parameters to hash

Question

I am trying to implement a simple search and sort for my webapp. I am following the railscast and this railscast.

My application helper for sortable function which

Answer 1

you can try to use request.parameters.merge, below is sample for your code above

<%= link_to title, listings_path(request.parameters.merge({:sort => "column", :direction => "direction", :page => nil})), :class => "form-control css_class" %>