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Ruby Build a Todo List Application with Rails 4 Build a Todo List Application with Rails 4 Viewing Todo Items: Part 2

Couldn't find TodoList with 'id'=todo_list_id

When I click on link 'List Items', the following error is thrown:

ActiveRecord::RecordNotFound in TodoItemsController#index Couldn't find TodoList with 'id'=todo_list_id

and it complaining about this line: @todo_list = TodoList.find(params[:todo_list_id])

In the following code class TodoItemsController < ApplicationController def index @todo_list = TodoList.find(params[:todo_list_id]) end end


1 Answer

Brandon Barrette
Brandon Barrette
20,485 Points

So I would go to that view where you are clicking the link. You have to pass the todo_list_id into the link, for example:

<%= link_to @todo_list.title, todo_list_path(@todo_list) %>

Notice I'm passing @todo_list into the todo_list_path. That adds the appropriate ID to the URL so that when the next page begins to load, it can fetch the ID and find the todo_list.

Hope that makes sense.

Brilliant, thank you very much for your help.