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Rails 4 in Action is a comprehensive introduction to Rails that guides you hands-on through all you'll need to become a competent and confident Rails developer. In it, you'll master Rails 4 by developing a ticket-tracking application that includes RESTful routing, authentication and authorization, file uploads, email, and more.
About the book
Rails is a full-stack, open source web framework powered by Ruby. Now in version 4, Rails is mature and powerful, and to use it effectively you need more than a few Google searches. You?ll find no substitute for the guru?s-eye-view of design, testing, deployment, and other real-world concerns that this book provides.
Rails 4 in Action is a hands-on guide to the subject. In this fully revised new edition, you?ll master Rails 4 by developing a ticket-tracking application that includes RESTful routing, authentication and authorization, file uploads, email, and more. Learn to design your own APIs and successfully deploy a production-quality application. You?ll see test-driven development and behavior-driven development in action throughout the book, just like in a top Rails shop.
Table of Contents takes you straight to the bookdetailed table of contents
preface
acknowledgments
about this book
about the authors
author online
about the cover illustration
1. Ruby on Rails, the framework
1.1. Ruby on Rails overview
1.1.1. Benefits
1.1.2. Ruby gems
1.1.3. Common terms
1.1.4. Rails in the wild
1.2. Developing your first application
1.2.1. Installing Rails
1.2.2. Generating an application
1.2.3. Starting the application
1.2.4. Scaffolding
1.2.5. Migrations
1.2.6. Viewing and creating purchases
1.2.7. Validations
1.2.8. Routing
1.2.9. Updating
1.2.10. Deleting
1.3. Summary
2. Testing saves your bacon
2.1. Using TDD and BDD to save your bacon
2.2. Test-driven development basics
2.2.1. Writing your first test
2.2.2. Saving bacon
2.3. Behavior-driven development basics
2.3.1. Introducing RSpec
2.3.2. Writing your first spec
2.3.3. Running the spec
2.3.4. Much more bacon
2.3.5. Expiring bacon
2.4. Summary
3. Developing a real Rails application
3.1. First steps
3.1.1. The application story
3.1.2. Laying the foundations
3.2. Version control
3.2.1. Getting started with GitHub
3.2.2. Configuring your Git client
3.3. Application configuration
3.3.1. The Gemfile and generators
3.3.2. Database configurations
3.4. Beginning your first feature
3.4.1. Creating projects
3.4.2. Defining a controller action
3.4.3. RESTful routing
3.4.4. Committing changes
3.4.5. Setting a page title
3.4.6. Validations
3.5. Summary
4. Oh CRUD!
4.1. Viewing projects
4.1.1. Introducing Factory Girl
4.1.2. Adding a link to a project
4.2. Editing projects
4.2.1. The edit action
4.2.2. The update action
4.3. Deleting projects
4.4. What happens when things can’t be found
4.4.1. Visualizing the error
4.4.2. Handling the ActiveRecord::RecordNotFound exception
4.5. Styling the application
4.5.1. Installing Bootstrap
4.5.2. Improving the page’s header
4.5.3. Improving the show view
4.5.4. Semantic styling
4.5.5. Using Simple Form
4.5.6. Adding a navigation bar
4.5.7. Responsive styling
4.6. Summary
5. Nested resources
5.1. Creating tickets
5.1.1. Nested routing helpers
5.1.2. Creating a tickets controller
5.1.3. Demystifying the new action
5.1.4. Defining a has_many association
5.1.5. Creating tickets in a project
5.1.6. Finding tickets scoped by project
5.1.7. Ticket validations
5.2. Viewing tickets
5.2.1. Listing tickets
5.2.2. Culling tickets
5.3. Editing tickets
5.3.1. The ticket-editing spec
5.3.2. Adding the edit action
5.3.3. Adding the update action
5.4. Deleting tickets
5.5. Summary
6. Authentication
6.1. Using Devise
6.2. Adding sign-up
6.3. Adding sign-in and sign-out
6.3.1. Adding sign-in
6.3.2. Adding sign-out
6.3.3. Styling the Devise views
6.4. Linking tickets to users
6.4.1. Fixing the failing four features
6.5. Summary
7. Basic access control
7.1. Turning users into admins
7.1.1. Adding the admin field to the users table
7.1.2. Creating the first admin user
7.2. Controllern namespacing
7.2.1. Generating a namespaced controller
7.2.2. Testing a namespaced controller
7.2.3. Moving functionality into the admin namespace
7.3. Hiding links
7.3.1. Hiding the "New Project" link
7.3.2. Hiding the delete link
7.4. Namespace-based CRUD
7.4.1. The index action
7.4.2. The new action
7.4.3. The create action
7.4.4. Creating admin users
7.4.5. Editing users
7.4.6. The edit and update actions
7.4.7. Archiving users
7.4.8. Ensuring that you can’t archive yourself
7.4.9. Preventing archived users from signing in
7.5. Summary
8. Fine-grained access control
8.1. Project-viewing permission
8.1.1. Assigning Roles in specs
8.1.2. Creating the Role model
8.1.3. Setting up Pundit
8.1.4. Testing the ProjectPolicy
8.1.5. Fixing what you broke
8.1.6. Handling authorization errors
8.1.7. One more thing
8.2. Project-updating permission
8.2.1. Testing the ProjectPolicy again
8.2.2. Applying the authorization
8.2.3. Hiding the "Edit Project" link
8.3. Ticket-viewing permission
8.3.1. Refactoring policy specs
8.3.2. Testing the TicketPolicy
8.3.3. Refactoring policies
8.4. Ticket-creation permission
8.4.1. Testing the TicketPolicy … again
8.4.2. Applying the authorization
8.5. Ticket-updating permission
8.5.1. Testing the TicketPolicy … turbocharged
8.5.2. Implementing controller authorization
8.6. Ensuring authorization for all actions
8.7. Assigning roles to users
8.7.1. Planning the permission screen with a feature spec
8.7.2. The roles screen
8.7.3. Building a list of projects in a select box
8.7.4. Processing the submitted role data
8.7.5. Saving roles of new users
8.8. Summary
9. File uploading
9.1. Attaching a file
9.1.1. A feature featuring files
9.1.2. Enter, stage right: CarrierWave
9.1.3. Using CarrierWave
9.1.4. Persisting uploads when redisplaying a form
9.2. Attaching many files
9.2.1. Testing multiple-file upload
9.2.2. Implementing multiple-file upload
9.2.3. Using nested attributes
9.3. Serving files through a controller
9.3.1. Testing existing functionality
9.3.2. Protecting attachments
9.3.3. Showing your attachments
9.3.4. Public attachments
9.3.5. Privatizing attachments
9.4. Using JavaScript
9.4.1. JavaScript testing
9.4.2. Cleaning the database
9.4.3. Introducing jQuery
9.4.4. Adding more files with JavaScript
9.5. Responding to an asynchronous request
9.5.1. Appending new content to the form
9.5.2. Sending parameters for an asynchronous request
9.6. Summary
10. Tracking state
10.1. Leaving a comment
10.1.1. The comment form
10.1.2. The comments controller
10.2. Changing a ticket’s state
10.2.1. Creating the State model
10.2.2. Selecting states
10.2.3. Setting a default state for a comment
10.2.4. Seeding your app with states
10.3. Tracking changes
10.3.1. Ch-ch-changes
10.3.2. Another c-c-callback
10.3.3. Displaying changes
10.3.4. Styling states
10.4. Managing states
10.4.1. Adding additional states
10.4.2. Defining a default state
10.4.3. Applying the default state
10.4.4. Setting a default state in seed states
10.5. Locking down states
10.5.1. Hiding a select box
10.5.2. Defining the change_state permission
10.5.3. Hacking a form
10.5.4. Ignoring a parameter
10.6. Summary
11. Tagging
11.1. Creating tags
11.1.1. The tag-creation feature
11.1.2. Showing tags
11.1.3. Defining the tags association
11.1.4. The Tag model
11.1.5. Displaying a ticket’s tags
11.2. Adding more tags
11.2.1. Adding tags through a comment
11.3. Tag restriction
11.3.1. Testing tag restriction
11.3.2. Tags are allowed, for some
11.4. Deleting a tag
11.4.1. Testing tag deletion
11.4.2. Adding a link to delete the tag
11.4.3. Removing a tag from the page
11.5. Finding tags
11.5.1. Testing search
11.5.2. Searching by tags
11.5.3. Searching by state
11.5.4. Search, but without the search
11.6. Summary
12. Sending email
12.1. Sending ticket notifications
12.1.1. Automatically watching a ticket
12.1.2. Using service classes
12.1.3. Defining the watchers association
12.1.4. Introducing Action Mailer
12.1.5. An Action Mailer template
12.1.6. Testing with mailer specs
12.2. Subscribing to updates
12.2.1. Testing comment subscription
12.2.2. Automatically adding the commenter to the watchers list
12.2.3. Unsubscribing from ticket notifications
12.3. Summary
13. Deployment
13.1. What is deployment?
13.2. Simple deployment from Heroku
13.2.1. Signing up
13.2.2. Provisioning an app
13.3. Twelve-factor apps
13.3.1. Configuration
13.3.2. Processes
13.3.3. Combining Heroku and S3
13.4. Deploying Ticketee
13.4.1. Fixing deployment issues
13.4.2. Fixing CarrierWave file uploads
13.4.3. Deploying is hard
13.5. Continuous deployment with Travis CI
13.5.1. Configuring Travis
13.5.2. Deployment
13.6. Sending emails
13.7. Summary
14. Designing an API
14.1. An overview of APIs
14.1.1. A practical examples
14.2. Using ActiveModel::Serializers
14.2.1. Getting your hands dirty
14.3. API authentication and authorization
14.3.1. The API namespace
14.3.2. A small tangent on inflections
14.3.3. Getting back to your API
14.4. It’s not a party without … HTTParty
14.5. Handling errors
14.5.1. Authenticating with a blank token
14.5.2. Permission denied
14.5.3. Validation errors
14.6. A small refactoring
14.7. Summary
15. Rack-based applications
15.1. Building Rack applications
15.1.1. A basic Rack application
15.1.2. Let’s increase the heartbeat
15.1.3. You’re not done yet
15.2. Building bigger Rack applications
15.2.1. You’re breaking up
15.2.2. Running a combined Rack application
15.3. Mounting a Rack application with Rails
15.3.1. Mounting Heartbeat
15.3.2. Introducing Sinatra
15.3.3. The API, by Sinatra
15.3.4. Basic error-checking
15.4. Middleware
15.4.1. Middleware in Rails
15.4.2. Crafting middleware
15.4.3. Using middleware
15.5. Summary
Appendixes
Appendix A: Installation guide
A.1. Windows
A.2. Mac OS X
A.3. Linux
Appendix B: Why Rails?
B.1. The sense of community
B.2. The speed and ease of development
B.3. RubyGems
B.4. The emphasis on testing
What's inside
- Creating your own APIs
- Using RSpec and Capybara
- Emphasis on test-first development
- Fully updated for Rails 4
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