This is the reference implementation of the sample application from Ruby on Rails Tutorial: Learn Web Development with Rails (6th Edition) by Michael Hartl.
All source code in the Ruby on Rails Tutorial is available jointly under the MIT License and the Beerware License. See LICENSE.md for details.
To get started with the app, first clone the repo and cd into the directory:
$ git clone https://github.com/mhartl/sample_app_6th_ed.git
$ cd sample_app_6th_ed
Then install the needed packages (while skipping any Ruby gems needed only in production):
$ yarn add jquery@3.4.1 bootstrap@3.4.1
$ bundle install --without production
(If you run into any installation issues or missing dependencies, refer to the first chapter of the tutorial for details.)
Next, migrate the database:
$ rails db:migrate
Finally, run the test suite to verify that everything is working correctly:
$ rails test
If the test suite passes, you’ll be ready to seed the database with sample users and run the app in a local server:
$ rails db:seed
$ rails server
You can then register a new user or log in as the sample administrative user with the email example@railstutorial.org and password foobar.
To deploy the sample app to production, you’ll need a Heroku account as discussed Section 1.4, “Deploying”.
The full production app includes several advanced features, including sending email with SendGrid and storing uploaded images with AWS S3. As a result, deploying the full sample app can be rather challenging. The suggested method for testing a deployment is to use the branch for Chapter 10 (“Updating users”), which doesn’t require more advanced settings but still includes sample users.
To deploy this version of the app, you’ll need to create a Heroku new application, switch to the right branch, push up the source, run the migrations, and seed the database with sample users:
$ heroku create
$ git checkout updating-users
$ git push heroku updating-users:master
$ heroku run rails db:migrate
$ heroku run rails db:seed
Visiting the URL returned by the original heroku create should now show you the sample app running in production. As with the local version, you can then register a new user or log in as the sample administrative user with the email example@railstutorial.org and password foobar.
The reference app repository includes a separate branch for each chapter in the tutorial (Chapters 3–14). To examine the code as it appears at the end of a particular chapter (with some slight variations, such as occasional exercise answers), simply check out the corresponding branch using git checkout:
$ git checkout <branch name>
A full list of branch names appears as follows:
static-pages
rails-flavored-ruby
filling-in-layout
modeling-users
sign-up
basic-login
advanced-login
updating-users
account-activation
password-reset
user-microposts
following-users
Experience shows that comparing code with the reference app is often helpful for debugging errors and tracking down discrepancies. For additional assistance with any issues in the tutorial, please consult the Rails Tutorial Help page.
Suspected errors, typos, and bugs can be emailed to help@learnenough.com. All such reports are gratefully received, but please double-check with the online version of the tutorial and this reference app before submitting.