[英]Rails Devise current_user is undefined in a matches? advanced route constraint
I get an error NameError (undefined local variable or method "current_user" for #<APIRouter:0x007ffd54a81f98>):
when I try to use current_user in a matches? 我得到一个错误NameError (undefined local variable or method "current_user" for #<APIRouter:0x007ffd54a81f98>):
当我尝试在匹配中使用current_user时? constraint. 约束。 I want certain dummy user to be routed to one set of controllers and other users to be routed to another set of controllers. 我希望将某个虚拟用户路由到一组控制器,并将其他用户路由到另一组控制器。 However, when I try to use current_user I get an error. 但是,当我尝试使用current_user时,我收到一个错误。
My matches constraint is defined in the APIRouter Class: 我的匹配约束在APIRouter类中定义:
class APIRouter
def matches? request
@use_rm_app = ENV["USE_RM_APP"] == "true" || (current_user && current_user.is_test)
end
end
Any ideas as to how I can use current user in the matches? 关于我如何在比赛中使用当前用户的任何想法? constraint as defined in the Rails guide . Rails指南中定义的约束。
Section from the routes.rb file: routes.rb文件中的部分:
# Route to the rm_app controller if APIRouter says we should, otherwise use the real backend controllers.
match '/api/v1/*path', :controller => 'api/v1',
:action => 'handle_create_request',
:via => :post, :constraints => APIRouter.new
UPDATE: Solved thanks to ksol. 更新:解决了ksol。 Attempt 3 works. 尝试3工作。 Get user using request.env["warden"].user(:user)
使用request.env["warden"].user(:user)
获取用户
Solution is to modify the APIRouter 解决方案是修改APIRouter
def matches? request
user = request.env["warden"].user(:user)
(user && user.is_test) || ENV["USE_RM_APP"] == "true"
end
current_user
is only available in your controllers and views. current_user
仅在您的控制器和视图中可用。 There is more than one way to achieve what you want, the easier being supplying it as a parameter to your method. 有多种方法可以实现您的需求,将其作为参数提供给您的方法更容易。
EDIT 编辑
if current_user
if accessible in the router, you can pass it to your constraints class by doing constraints: APIRouter.new(current_user)
. 如果在路由器中可以访问current_user
则可以通过约束将其传递给约束类constraints: APIRouter.new(current_user)
。 Then you need to define APIRouter#initialize
and store the current_user in an instance var that you can use in matches?
那么你需要定义APIRouter#initialize
并将current_user存储在一个可以在matches?
使用的实例var matches?
. 。
EDIT 2 编辑2
I just remembered devise allows you to do this in your router : 我记得devise允许你在路由器中执行此操作:
authenticated :user do
root :to => "main#dashboard"
end
I don't know how to ensure that user.is_test
though. 我不知道如何确保user.is_test
。
EDIT 3 编辑3
Last attempt. 最后一次尝试。 request.env["warden"].user(:user)
should give you a user if one is authenticated. request.env["warden"].user(:user)
应该为用户提供经过身份验证的用户。
Building on ksol's post, you can ensure user.is_test by passing a block to authenticated: 在ksol的帖子的基础上,您可以通过将块传递给经过身份验证来确保user.is_test:
authenticated :user, lambda {|u| u.is_test } do
// route stuff here
end
This is assuming that u.is_test returns a Boolean value. 这假设u.is_test返回一个布尔值。
Just remember to add diff :as for both root otherwise it will through error 只记得添加diff:和两个root一样,否则会出错
authenticated :user do
root :to => "main#dashboard", :as => :foo
end
root :to => "main#landing_page"
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