submit-social-housing-lettings-and-sales-data/app/controllers/sessions_controller.rb

class SessionsController < ApplicationController
  def clear_filters
    session[session_name_for(params[:filter_type])] = "{}"

    redirect_to send("#{params[:filter_type]}_path")
  end

private

  def session_name_for(filter_type)
    "#{filter_type}_filters"
  end
end