Rails null object

Use foo. Mulan Mulan k 28 28 gold badges silver badges bronze badges. Please see the docs I linked for further explanation.

Mayank, run it in a javascript console to find out! Show 2 more comments. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Stack Gives Back Safety in numbers: crowdsourcing data on nefarious IP addresses. As of Rails 4. You need to use one of your real model names, e.

Show 7 more comments. Yeah I'm really surprised that these answers are the best we have. If I had to go through perambulations to create an empty array in Ruby I'd be really annoyed. Same thing here, basically. Although somewhat hackish, this is the correct way for Rails 3. For Rails 4, see steveh7 's other answer here: stackoverflow.

Neither it, nor chained methods, will generate queries to the database. Nathan Long Nathan Long k 92 92 gold badges silver badges bronze badges. Brandon Brandon 2, 18 18 silver badges 17 17 bronze badges. In case you don't scroll down to the new 'correct' answer: Model. Alex Alex 3, 5 5 gold badges 32 32 silver badges 39 39 bronze badges. I prefer this one. I'm not sure why where false wouldn't do the job--it leaves the scope unchanged.

Beware that limit 0 will be overridden if you call. Not that you probably care now it's : — Ritchie. Thanks Ritchie, since then I think we also have the none relation as mentioned below. Pan Thomakos Pan Thomakos Please help us improve Stack Overflow. Take our short survey. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow.

Learn more. How I can check if an object is null in ruby on rails 2? Ask Question. Asked 9 years, 8 months ago.

Active 1 year ago. Viewed k times. Improve this question. George Panayi George Panayi 1, 6 6 gold badges 26 26 silver badges 39 39 bronze badges.

Add a comment. This implementation can serve us quite well. As we add logic for our store front, we end up with methods like this:. Things will continue to work on our empty array, as long as we are only calling methods from the Enumerable module.