FAQ: Saving Data - Controller

This community-built FAQ covers the “Controller” exercise from the lesson “Saving Data”.

Paths and Courses
This exercise can be found in the following Codecademy content:

Learn Ruby on Rails

FAQs on the exercise Controller

There are currently no frequently asked questions associated with this exercise – that’s where you come in! You can contribute to this section by offering your own questions, answers, or clarifications on this exercise. Ask or answer a question by clicking reply (reply) below.

If you’ve had an “aha” moment about the concepts, formatting, syntax, or anything else with this exercise, consider sharing those insights! Teaching others and answering their questions is one of the best ways to learn and stay sharp.

Join the Discussion. Help a fellow learner on their journey.

Ask or answer a question about this exercise by clicking reply (reply) below!

Agree with a comment or answer? Like (like) to up-vote the contribution!

Need broader help or resources? Head here.

Looking for motivation to keep learning? Join our wider discussions.

Learn more about how to use this guide.

Found a bug? Report it!

Have a question about your account or billing? Reach out to our customer support team!

None of the above? Find out where to ask other questions here!

What’s the difference between :

#A
Rails.application.routes.draw do
	get '/messages' => 'messages#index'
end

and without “/”

#B
Rails.application.routes.draw do
	get 'messages' => 'messages#index'
end

In the previous exercise we did this without “/” and it was fine
get 'home' => 'pages#welcome'
and now I’m getting an error when I run option #A, without “/”

3 Likes

I had problems, with both this section and the last. Here’s how to fix them:

  • If it mentions rerunning with --force, do it.
  • If it mentions rerunning with --trace, ignore it.
  • Instead of typing rake db:[whatever] type bin/rake db:[whatever]
  • If a prompt to overwrite with [Ynqdh] or similar options comes up, use h then y (I think; n gives you the entire solution at the start)

wouldn’t this cause an infinite loop?

def change
create_table :messages do |t|
t.text :content
t.timestamps
end
end

where is the “route file”?

I am trying " Generate a controller named Messages ."
Created file:
cat app/controllers/messages_controller.rb
class MessagesController < ApplicationController
end
The exercise shows error. Any mistake in file name? Any mistake in class?

Got the answer! I was working with the command window maximized, so did not see the error message that was prompting to use the command rails generate controller....