class Ransack::Configuration::PredicateCollection

def []=(key, value)
  @sorted_names_with_underscores << [key, '_' + key]
  @sorted_names_with_underscores.sort! { |(a, _), (b, _)| b.length <=> a.length }
  @collection[key] = value
end

def initialize
  @collection = {}
  @sorted_names_with_underscores = []
end