CSC 321.01, Class 05: More fun with Rails
- Notes and news
- Upcoming work
- Extra credit
- Introducing Rails, round 2
- Introducing Rails, round 3
News / Etc.
- Today we continue with Rails.
- Sorry for the delayed reading journal assignments. Stay tuned for more. (Today’s is posted.)
- We appear to have lots of sick students this a.m.
- Reminder: Friday is Add/Drop deadline. And yes, that includes music lessons, too.
- Please submit Dudle poll on mentor session times.
- Read SaasBook, Chapter 1 and sections 10.1-10.2 (due Monday at 8 p.m.)
- Do The introduction to Rails from SaasBook (due Tuesday at 10:30 p.m.)
Good things to do
Note: I do not do extra credit in two-credit classes.
- Convo today at 11am in JRC 101.
- Talk today at 4pm in JRC 101.
- Former governor Brandstadt tonight at 7pmish in JRC 101.
- Les Duke Saturday at 9 a.m. at the Golf Course.
- Math/CS picnic Sept. 15 sign up by noon Sept. 8.
Introducing Rails, round 2
We’ll spend the first ninety minutes or so working on Chapters 1 and 2 of The Rails Tutorial.
- Should we do all of our Rails work on Cloud 9?
- Should we build a new VM for each project?
- It’s up to you. You’ll find that Hartl (today) and SaaSbook have different base VMs, so setting up a new one is good.
- Do we have to use Bitbucket rather than Github?
- No. You can use Github. Your repo will just be public.
- Didn’t you say that Rails was “convention over configuration”. What’s
- with this GemFile thingy?
- Well, some configuration is necessary, particularly since APIs change so quickly.
- Wow, there are a lot of magic incantations
- Yup. Doesn’t that seem like a great opportunity for a cracker?
- Why did we do both c9 and Heroku? (Why don’t we just run our servers on C9?)
- c9 is designed for development; Heroku is for deployment. You should not mix the two.
- Development/deployment lets you preview/test changes without affecting your users.
- Using different systems lets you keep track of what you’re doing.
- The platforms are built for different purposes.
- What did you learn about setting up your system to run Rails?
- I have to do lots of set up my system to run Rails. (Yes, that’s one of the things that happens as you transition to being a software professional. You no longer get to work with pre-configured systems. Some of you have more experience at this than others; CSC 321/22 should help everyone.)
- Minor details have incredible significance.
- We rely on lots and lots of libraries (“Gems”). They change. Even minor changes have ripples. So we have to be careful in specifying versions.
Introducing Rails, round 3
We’ll spend the last twenty minutes or so getting started with the “clone and update” first Rails assignment from the SaaSbook.