contractors_controller.rb

class ContractorsController < ApplicationController
  def search; end
  def import; end
end

import_controller.rb

class ImportController < AdminController
  def trades
    if request.get?
    else request.post?
    end
  end
  def contractors
    if request.get?
    else request.post?
    end
  end
end

labels_controller.rb

class LabelsController < ApplicationController
  def import; end
end

routes.rb

Portal::Application.routes.draw do
  resources :trades do
    collection do 
      post 'import'
    end
  end

  resources :contractors do
    collection do
      post 'import'
      get 'search'
    end
  end

  post "/admin/import/labels" => 'labels#import'
  post "/admin/import/contractors" => 'contractors#import'

  root to: 'main#index'
end