Question

在我的展示页面中，我想根据变量的值更改“查看更多”按钮的路径。例如，如果我在展会页面上看佛罗里达州坦帕市的一幢建筑物并点击“查看更多”，我想回到locations_tampa_path再次查看坦帕的建筑物的完整列表。但是，我希望链接中的路径根据特定建筑的城市进行更改：

类似这样的内容：location_#{@location.city}_path

这样做的最佳方式是什么？
提前感谢您给予的任何帮助。

我的控制器：

class LocationsController < ApplicationController
  def index
    @locations = Location.all
  end
  def new
    @location = Location.new
  end
  def create
    @location = Location.new(location_params)
    if @location.save
      flash[:notice] = "New location added"
      redirect_to root_path
    else
      flash.now[:error] = 'Cannot send message'
      render 'new'
    end
  end
  def jacksonville
    @locations = Location.where(:city => "Jacksonville")
  end
  def stpetersburg
    @locations = Location.where(:city => "St. Petersburg")
  end
  def orlando
    @locations = Location.where(:city => "Orlando")
  end
  def tampa
    # @location = Location.find(params[:id])
    @locations = Location.where(:city => "Tampa")
    @photo = Photo.new
  end
  def show
    @location = Location.find(params[:id])
    @photo = Photo.new
  end

  private

  def location_params
    params.require(:location).permit(:name, :description, :address, :city, :featured)
  end
end

路线

get 'locations/tampa', to: 'locations#tampa'
get 'locations/jacksonville', to: 'locations#jacksonville'
get 'locations/orlando', to: 'locations#orlando'
get 'locations/st_petersburg', to: 'locations#stpetersburg'
resources :locations do
 resources :photos, only: :create
end

Answer 1

您在自己不需要的控制器中重复自己。您似乎想要一个参数化路线：

在您的routes.rb中：

get "locations/:location", to: 'locations#show_location', as: :location_path

然后，您可以在视图/控制器中传递location作为参数：

location_path(location: @location.city)

您可以在show_location中执行简单的LocationsController操作：

def show_location
    @location = Location.find_by(city: params[:location])
    @photo = Photo.new

    if @location
       render @location.city
    end
end

如何将Rails变量传递给路由

1 个答案: