Ruby on Rails：没有使用edit_path的路线？

Question

I have two different controllers I got from rails generate, and each controller has index, edit, update, destroy, etc...

Now I'm trying to relate these two controllers (lists and ideas). I have this loop in my lists -> show page

<% @list.ideas.each do |idea| %>
  <div>
    <div class="list_idea_desc"><%= idea.description %></div>
    <div><%= link_to 'Show', idea %></div>
    <div><%= link_to 'Edit', edit_idea_path(idea) %></div>
    <div><%= link_to 'Destroy', idea, method: :delete, data: { confirm: 'Are you sure?' } %></div>
  </div>
<% end %>

I'm trying to get the edit_idea_path to work, but it gives me error

No route matches {:action=>"edit", :controller=>"ideas", 
:id=>#<Idea id: nil, name: nil, description: nil, picture: nil, 
created_at: nil, updated_at: nil, list_id: 2>}

Any idea how I can use the two different controllers? Does this give enough information?

Thanks

Answer 1

Your Idea instance doesn't have an ID ( :id=>#<Idea id: nil... ), so the router can't generate a route for it. Make sure your Ideas are saved before attempting to generate yours for them.

Also, not directly related to the problem, but you can just use link_to "Edit", [:edit, idea] to have it infer the route based on the class of idea .

Answer 2

check your routes.rb file as you are using RESTful routing

and if not help, paste the routes code here