I'm new at Rails and I've seem similar problems, but I can't solve mine.
My routes:
resources :users do
resources :items
end
My models:
class Item < ActiveRecord::Base
belongs_to :user
end
class User < ActiveRecord::Base
has_many :items
end
HTML:
<% @items.each do |item| %>
<tr>
<td><%= item.id %></td>
<td><%= item.code %></td>
<td><%= item.name %></td>
<td><%= item.quantity %></td>
<td><%= link_to "Edit", edit_user_item_path(item) %></td> <---- error
And I'm getting the same error:
No route matches {:action=>"edit", :controller=>"items",
:user_id=>#<Item id: 1, user_id: 1, code: "123", name: "test",
quantity: 12, , created_at: "2014-02-11 15:45:30", updated_at:
"2014-02-11 15:45:30">, :id=>nil, :format=>nil} missing required keys: [:id]
You need to include the user as well since its a nested route. So something like:
<td><%= link_to "Edit", edit_user_item_path(@user, item) %></td>
The problem is that you are using nested resources:
resources :users do
resources :items
end
So when you have a link:
<%= link_to "Edit", edit_user_item_path(item) %>
It will lack one user_id
so the easy to check the issue is using rake routes
. And it will list the routes like this:
edit_user_item GET /users/:user_id/items/:id/edit(.:format) items#edit
You can see the routes above and check it with the link, you will see it does not have user_id
. That's the main reason!
You've missed user_id
in the following path:
edit_user_item_path(user_id, item)
format you are able to find just running bundle exec rake routes | grep edit_user_item
The object item
is being passed instead of the required id.
<td><%= link_to "Edit", edit_user_item_path(item.id) %></td>
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