如何为美国/德克萨斯州/奥斯汀等城市和州创建友好 ID URL

Question

所以我有 2 个不同的链接：

united-states/texas/austin

和：

united-states/colorado/austin-14be76ea-77e2-4f0e-8540-0103ad72cd7a

我希望第二个简单：

united-states/colorado/austin

那么我如何获得friendly_id 以停止创建独特的slug，而是确保city slug 在按国家和州划分时是唯一的？

此外，在我的控制器中，我如何定位正确的城市（按国家和州划分）？

@city = City.friendly.find(params[:id])

这只是看着蛞蝓，并不关心城市是一个嵌套资源。

这是我的设置：

class City < ActiveRecord::Base
  extend FriendlyId
  friendly_id :name, :use => :scoped, :scope => [:homeland, :region]
  belongs_to :region
  belongs_to :homeland
end

class Region < ActiveRecord::Base
  extend FriendlyId
  friendly_id :name, :use => :scoped, :scope => :homeland
  belongs_to :homeland
  has_many :cities
end

#Had to use Homeland as Country was in use
class Homeland < ActiveRecord::Base 
  extend FriendlyId
  friendly_id :name, use: :slugged
  has_many :regions
  has_many :cities, through: :regions
end

Routes.rb

  resources :homelands, :path => '' do
    resources :regions, :path => '' do 
      resources :cities, :path => ''
    end
  end

更新：Michal 来了

更新 2：我现在的修复

删除：

  resources :homelands, :path => '' do
    resources :regions, :path => '' do 
      resources :cities, :path => ''
    end
  end

添加：

  get "local/:id", to: "homelands#show", as: 'homeland'
  get "local/:homeland_id/:id", to: "regions#show", as: 'region'
  get "local/:homeland_id/:region_id/:id", to: "cities#show", as: 'city'

对于链接：

<%= link_to region.name, region_path(region.slug, homeland_id: @homeland.slug) %>

Answer 1

FriendlyId 中有一个错误导致了这种情况。见https://github.com/norman/friendly_id/issues/536

如果你踢我的**，也许我最终会让自己拉请求补丁。