2020 Complete Ruby on Rails 6 Bootcamp: Learn Ruby on Rails

Learn how the asset pipeline in Rails manages static assets with app/assets, lib/assets, and vendor/assets, uses manifest files to combine into one optimized asset, and selects preprocessing engines by extension.

Explore sass: nest selectors and use variables to minimize duplication, preprocess scss files with the sass preprocessor, and leverage ampersand nesting, while applying bootstrap color variables for cleaner styles.

Learn how to implement integration tests in Rails to verify site layout and navigation, including root path, home, about, and contact links, by generating tests and debugging.

Explore the user model in Rails, using active record to create, validate, save, and destroy users in a sandboxed Rails console, and access attributes like name and email.

Learn to manage user objects with ActiveRecord in Rails: use find, find_by, and all to retrieve users, and update attributes with save or update, noting validations.

Learn how to validate presence in Rails forms by requiring non-blank name and email attributes, then test presence with unit tests and inspect errors to prevent saving invalid records.

Learn to enforce length validations in a Rails app by limiting the name to 60 characters and the email to 255, with tests guiding the process.

Enforce email uniqueness in the database with a uniqueness validation and case-insensitive checks, updating tests to verify duplicate emails fail and all tests pass.

Enforce uniqueness at the database level by adding a unique index on users.email via a migration, while normalizing emails to lowercase and updating tests to ensure race-condition safety.

Add a sidebar to the user profile page by inserting an aside with user info and username, then style it using the assets stylesheets custom file.

Create a signup form in Rails using the form helper and a new user object, with fields for name, email, password, and password confirmation, protecting against cross site request forgery.

Add error messaging to the sign-up form by rendering a shared error_messages partial from user model validations, with form-control styling. Prepare for testing invalid submissions in the next lesson.

Develop integration tests for user signup in Rails, verify invalid submissions don't create users using count checks, and ensure valid submissions redirect to the new user's profile.

This lesson demonstrates writing an integration test for valid user sign-ups and deploying the Orbit Rails app to production on Heroku, enforcing SSL and using the Puma web server.

Learn how to implement a simple authentication system in Rails by creating a sessions controller, login form, and routes for login and logout, using cookies to persist sessions.

Build the login form view to create new sessions and display flash error messages for login failures. Implement email and password fields, a login button, and a sign-up link.

Learn to implement user login with a temporary encrypted session in Rails, using the session helper, including the login method, and redirecting to the user profile.

Define a current_user method to securely fetch a user by session user_id with find_by, avoiding nil errors, and memoize with ||= for redirects and displays.

Learn to adapt site navigation by showing different account dropdown links based on whether a user is logged in, including logout, settings, user list, and profile options.

Write an integration test to automate the login sequence, verifying login, logout, and profile links via fixtures and password digest with bcrypt.

Learn how to log in a user automatically at signup by updating the users controller create action and validating the login in tests via the is_logged_in? helper.

Learn to implement logout in a Ruby on Rails app by adding a destroy action in the sessions controller, clearing user_id from the session, and updating tests to verify logout.

Learn to commit and merge code using git commands, push a Rails authentication-enabled app to Heroku, and verify login flows, preparing to implement rest actions for user management.