Question

我的视图/帮助程序中的以下代码错误地出现了无效对象，但是当我在控制台中运行相同的代码时，它似乎有效。我感谢您提供的任何帮助。

这不起作用 -

2.2.1 :032 > purchase_orders.map do |purchase_order|
2.2.1 :033 >      [ERB::Util.h(purchase_order.name),
2.2.1 :034 >       ERB::Util.h(purchase_order.descr),
2.2.1 :035 >       link_to("Copy PO", purchase_order_copy_path(purchase_order))]
2.2.1 :036?>   end

NoMethodError: undefined method `purchase_order_copy_path' for main:Object
    from (irb):36:in `block in irb_binding'
    from /home/a/.rvm/gems/ruby-2.2.1/gems/activerecord-4.0.13/lib/active_record/relation/delegation.rb:13:in `map'
    from /home/a/.rvm/gems/ruby-2.2.1/gems/activerecord-4.0.13/lib/active_record/relation/delegation.rb:13:in `map'
    from (irb):32
    from /home/a/.rvm/gems/ruby-2.2.1/gems/railties-4.0.13/lib/rails/commands/console.rb:90:in `start'
    from /home/a/.rvm/gems/ruby-2.2.1/gems/railties-4.0.13/lib/rails/commands/console.rb:9:in `start'
    from /home/a/.rvm/gems/ruby-2.2.1/gems/railties-4.0.13/lib/rails/commands.rb:62:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'

这个适用于控制台 -

2.2.1 :037 > app.purchase_order_copy_path(purchase_orders.first)
 => "/purchase_orders/1/copy"

Answer 1

感谢Rob Cameron，我所要做的就是在我的数据表类中使用Rails.application.routes.url_helpers.purchase_order_copy_path

路由（路径）在控制台中工作但不在视图中工作

1 个答案: