将哈希传递给Ruby on Rails中的控制器

Question

Using Geocoder gem, i have a helper method that can show current location. I would like to show users events that belong to their home country and nothing else. I can't figure out how to pass the info to the controller.

Helper

def myplace
     @myplace = request.location.country
end

Print/Show

<%= myplace %>

I am trying to pass myplace to the controller

Controller

@events = Event.where('start_at > ?', Time.zone.now).where(country: params[:myplace]).order('end_at ASC').limit(4)

Can you please explain to me how i can query events based on user's locale.

Answer 1

If you want a method to be available to both your views and controllers, it doesn't go in your helper files. You need to put it in your controller, and make it available as a helper to your views with helper_method :

class MyController

  helper_method :myplace


  def my_action
    @events = Event.where('start_at > ?', Time.zone.now)
      .where(country: myplace)
      .order('end_at ASC').limit(4)
  end

  protected

  def myplace
    @myplace = request.location.country
  end
end

Answer 2

您的控制器有权访问该请求，因此您可以：

@events = Event.where('start_at > ?', Time.zone.now).where(country: request.location.country).order('end_at ASC').limit(4)