Ruby-on-rails ransack gem过滤器构建器配置路由

Question

I am reading code(written by someone else) that uses the ransack gem to build a filter. In the config file there is a route that is as follows:

get '/app_hosts/ransack_filter_builder' => 'app_hosts#ransack_filter_builder', :format => :js

I can't find a method called ransack_filter_builder anywhere. Application_helper has one called filterBuilder and application_controller has a filter_builder_controller. so, what is it(#ransack_filter_builder) referring to? Is it something created by rails?

Answer 1

Is there a gem in the Gemfile called ransack? If so, then this method comes from that gem. Here is the gem documentation.