在行动调度路由过程中,有什么方法可以让url_fo根据request.host返回url吗?
mount Collaborate::Engine => '/apps/collaborate', :constraints => {:host => 'example.com' }
mount Collaborate::Engine => '/apps/worktogether'
示例:
当用户在example.com主机上时
collabore_path=>/apps/collaborate
当用户在任何其他主机上时
collabore_path=>/apps/worktogether
经过大量的研究,我意识到RouteSet类有named_routes,它没有考虑返回url的约束。
我已经尝试在action_dispatch/routing/route_set.rb中重写@set以从rails应用程序中拾取,但无法按预期工作
@search_set = Rails.application.routes.set.routes.select{|x| x.defaults[:host] == options[:host] }[0]
@set = @search_set unless @search_set.blank?
Remove.com
mount Collaborate::Engine => '/apps/collaborate', :constraints => {:host => 'examplesite' }
mount Collaborate::Engine => '/apps/worktogether'
应该只工作
如果您需要更高级的约束,请创建自己的约束:
class CustomConstraint
def initialize
# Things you need for initialization
end
def matches?(request)
# Do your thing here with the request object
# http://guides.rubyonrails.org/action_controller_overview.html#the-request-object
request.host == "example"
end
end
Rails.application.routes.draw do
get 'foo', to: 'bar#baz',
constraints: CustomConstraint.new
end
您也可以将约束指定为lambda:
Rails.application.routes.draw do
get 'foo', to: 'foo#bar',
constraints: lambda { |request| request.remote_ip == '127.0.0.1' }
end
来源:http://guides.rubyonrails.org/routing.html#advanced-限制
至于我关心的问题,如果你在中间件级别处理它,那就很好了。这就是我的设想。
在config/application.rb
中添加此行
config.middleware.insert_before ActionDispatch::ParamsParser, "SelectiveStack"
在应用程序目录中添加中间件,将中间件目录作为约定
app/middleware/selective_stack.rb
class SelectiveStack
def initialize(app)
@app = app
end
def call(env)
debugger
if env["SERVER_NAME"] == "example.com"
"/apps/collaborate"
else
"/apps/worktogether"
end
end
end
希望这能解决你的问题。!!!
好吧,这是在黑暗中拍摄的;也许你已经试过了,也许我真的错过了什么。从表面上看,您实际上只是想覆盖apps
的路径辅助方法。那么,为什么不在application_helper.rb
中设置一个覆盖呢?类似于:
module ApplicationHelper
def collaborate_path
if request.domain == "example.com"
"/apps/collaborate"
else
"/apps/worktogether"
end
end
end