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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.



TABLE OF CONTENTS show full
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