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mhartl
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Description

The main sample app for the Ruby on Rails Tutorial, 6th Edition

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Ruby on Rails Tutorial sample application

Reference implementation

This is the reference implementation of the sample application from Ruby on Rails Tutorial: Learn Web Development with Rails (6th Edition) by Michael Hartl.

License

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.

Getting started

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 [email protected] [email protected]
$ 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

[email protected]
and password
foobar
.

Deploying

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 new Heroku 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
[email protected]
and password
foobar
.

Branches

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 

A full list of branch names appears as follows (preceded the number of the corresponding chapter in the book):

 3. static-pages
 4. rails-flavored-ruby
 5. filling-in-layout
 6. modeling-users
 7. sign-up
 8. basic-login
 9. advanced-login
10. updating-users
11. account-activation
12. password-reset
13. user-microposts
14. following-users

For example, to check out the branch for Chapter 7, you would run this at the command line:

$ git checkout sign-up

Help with the Rails Tutoiral

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 [email protected]. All such reports are gratefully received, but please double-check with the online version of the tutorial and this reference app before submitting.

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