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Ruby on Rails Tutorial, 6th Edition

Name: Ruby on Rails Tutorial, 6th Edition
Author: Michael Hartl
ISBN: 9780136702726

by Michael Hartl

July 2020

Intermediate to advanced

848 pages

21h 34m

English

Addison-Wesley Professional

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Cover Page
About This eBook
Halftitle Page
Title Page
Copyright Page
Contents
Foreword
Acknowledgments
About the Author
Chapter 1. From Zero to Deploy
1.1 Up and Running1.1.1 Development Environment1.1.2 Installing Rails1.2 The First Application1.2.1 Bundler1.2.2 rails server1.2.3 Model-View-Controller (MVC)1.2.4 Hello, World!1.3 Version Control with Git1.3.1 Installation and Setup1.3.2 What Good Does Git Do for You?1.3.3 GitHub1.3.4 Branch, Edit, Commit, Merge1.4 Deploying1.4.1 Heroku Setup and Deployment1.4.2 Heroku Commands1.5 Conclusion1.5.1 What We Learned in this Chapter1.6 Conventions Used in this Book

Chapter 2. A Toy App
2.1 Planning the Application2.1.1 A Toy Model for Users2.1.2 A Toy Model for Microposts2.2 The Users Resource2.2.1 A User Tour2.2.2 MVC in Action2.2.3 Weaknesses of this Users Resource2.3 The Microposts Resource2.3.1 A Micropost Microtour2.3.2 Putting the Micro in Microposts2.3.3 A User has_many Microposts2.3.4 Inheritance Hierarchies2.3.5 Deploying the Toy App2.4 Conclusion2.4.1 What We Learned in this Chapter
Chapter 3. Mostly Static Pages
3.1 Sample App Setup3.2 Static Pages3.2.1 Generated Static Pages3.2.2 Custom Static Pages3.3 Getting Started with Testing3.3.1 Our First Test3.3.2 Red3.3.3 Green3.3.4 Refactor3.4 Slightly Dynamic Pages3.4.1 Testing Titles (Red)3.4.2 Adding Page Titles (Green)3.4.3 Layouts and Embedded Ruby (Refactor)3.4.4 Setting the Root Route3.5 Conclusion3.5.1 What We Learned in this Chapter3.6 Advanced Testing Setup3.6.1 Minitest Reporters3.6.2 Automated Tests with Guard
Chapter 4. Rails-Flavored Ruby
4.1 Motivation4.1.1 Built-in Helpers4.1.2 Custom Helpers4.2 Strings and Methods4.2.1 Strings4.2.2 Objects and Message Passing4.2.3 Method Definitions4.2.4 Back to the Title Helper4.3 Other Data Structures4.3.1 Arrays and Ranges4.3.2 Blocks4.3.3 Hashes and Symbols4.3.4 CSS Revisited4.4 Ruby Classes4.4.1 Constructors4.4.2 Class Inheritance4.4.3 Modifying Built-in Classes4.4.4 A Controller Class4.4.5 A User Class4.5 Conclusion4.5.1 What We Learned in this Chapter
Chapter 5. Filling in the Layout
5.1 Adding Some Structure5.1.1 Site Navigation5.1.2 Bootstrap and Custom CSS5.1.3 Partials5.2 Sass and the Asset Pipeline5.2.1 The Asset Pipeline5.2.2 Syntactically Awesome Stylesheets5.3 Layout Links5.3.1 Contact Page5.3.2 Rails Routes5.3.3 Using Named Routes5.3.4 Layout Link Tests5.4 User Signup: A First Step5.4.1 Users Controller5.4.2 Signup URL5.5 Conclusion5.5.1 What We Learned in this Chapter
Chapter 6. Modeling Users
6.1 User Model6.1.1 Database Migrations6.1.2 The Model File6.1.3 Creating User Objects6.1.4 Finding User Objects6.1.5 Updating User Objects6.2 User Validations6.2.1 A Validity Test6.2.2 Validating Presence6.2.3 Length Validation6.2.4 Format Validation6.2.5 Uniqueness Validation6.3 Adding a Secure Password6.3.1 A Hashed Password6.3.2 User Has Secure Password6.3.3 Minimum Password Standards6.3.4 Creating and Authenticating a User6.4 Conclusion6.4.1 What We Learned in this Chapter
Chapter 7. Sign Up
7.1 Showing Users7.1.1 Debug and Rails Environments7.1.2 A Users Resource7.1.3 Debugger7.1.4 A Gravatar Image and a Sidebar7.2 Signup Form7.2.1 Using form_with7.2.2 Signup Form HTML7.3 Unsuccessful Signups7.3.1 A Working Form7.3.2 Strong Parameters7.3.3 Signup Error Messages7.3.4 A Test for Invalid Submission7.4 Successful Signups7.4.1 The Finished Signup Form7.4.2 The Flash7.4.3 The First Signup7.4.4 A Test for Valid Submission7.5 Professional-Grade Deployment7.5.1 SSL in Production7.5.2 Production Webserver7.5.3 Production Database Configuration7.5.4 Production Deployment7.6 Conclusion7.6.1 What We Learned in this Chapter
Chapter 8. Basic Login
8.1 Sessions8.1.1 Sessions Controller8.1.2 Login Form8.1.3 Finding and Authenticating a User8.1.4 Rendering with a Flash Message8.1.5 A Flash Test8.2 Logging In8.2.1 The log_in Method8.2.2 Current User8.2.3 Changing the Layout Links8.2.4 Testing Layout Changes8.2.5 Login Upon Signup8.3 Logging Out8.4 Conclusion8.4.1 What We Learned in this Chapter
Chapter 9. Advanced Login
9.1 Remember Me9.1.1 Remember Token and Digest9.1.2 Login with Remembering9.1.3 Forgetting Users9.1.4 Two Subtle Bugs9.2 “Remember Me” Checkbox9.3 Remember Tests9.3.1 Testing the “Remember Me” Checkbox9.3.2 Testing the Remember Branch9.4 Conclusion9.4.1 What We Learned in this Chapter
Chapter 10. Updating, Showing, and Deleting Users
10.1 Updating Users10.1.1 Edit Form10.1.2 Unsuccessful Edits10.1.3 Testing Unsuccessful Edits10.1.4 Successful Edits (with TDD)10.2 Authorization10.2.1 Requiring Logged-in Users10.2.2 Requiring the Right User10.2.3 Friendly Forwarding10.3 Showing All Users10.3.1 Users Index10.3.2 Sample Users10.3.3 Pagination10.3.4 Users Index Test10.3.5 Partial Refactoring10.4 Deleting Users10.4.1 Administrative Users10.4.2 The destroy Action10.4.3 User Destroy Tests10.5 Conclusion10.5.1 What We Learned in this Chapter
Chapter 11. Account Activation
11.1 Account Activations Resource11.1.1 Account Activations Controller11.1.2 Account Activation Data Model11.2 Account Activation Emails11.2.1 Mailer Templates11.2.2 Email Previews11.2.3 Email Tests11.2.4 Updating the Users create Action11.3 Activating the Account11.3.1 Generalizing the authenticated? Method11.3.2 Activation edit Action11.3.3 Activation Test and Refactoring11.4 Email in Production11.5 Conclusion11.5.1 What We Learned in this Chapter
Chapter 12. Password Reset
12.1 Password Resets Resource12.1.1 Password Resets Controller12.1.2 New Password Resets12.1.3 Password Reset create Action12.2 Password Reset Emails12.2.1 Password Reset Mailer and Templates12.2.2 Email Tests12.3 Resetting the Password12.3.1 Reset edit Action12.3.2 Updating the Reset12.3.3 Password Reset Test12.4 Email in Production (Take Two)12.5 Conclusion12.5.1 What We Learned in this Chapter12.6 Proof of Expiration Comparison
Chapter 13. User Microposts
13.1 A Micropost Model13.1.1 The Basic Model13.1.2 Micropost Validations13.1.3 User/Micropost Associations13.1.4 Micropost Refinements13.2 Showing Microposts13.2.1 Rendering Microposts13.2.2 Sample Microposts13.2.3 Profile Micropost Tests13.3 Manipulating Microposts13.3.1 Micropost Access Control13.3.2 Creating Microposts13.3.3 A Proto-Feed13.3.4 Destroying Microposts13.3.5 Micropost Tests13.4 Micropost Images13.4.1 Basic Image Upload13.4.2 Image Validation13.4.3 Image Resizing13.4.4 Image Upload in Production13.5 Conclusion13.5.1 What We Learned in this Chapter
Chapter 14. Following Users
14.1 The Relationship Model14.1.1 A Problem with the Data Model (and a Solution)14.1.2 User/Relationship Associations14.1.3 Relationship Validations14.1.4 Followed Users14.1.5 Followers14.2 A Web Interface for Following Users14.2.1 Sample Following Data14.2.2 Stats and a Follow Form14.2.3 Following and Followers Pages14.2.4 A Working Follow Button the Standard Way14.2.5 A Working Follow Button with Ajax14.2.6 Following Tests14.3 The Status Feed14.3.1 Motivation and Strategy14.3.2 A First Feed Implementation14.3.3 Subselects14.4 Conclusion14.4.1 Guide to Further Resources14.4.2 What We Learned in this Chapter
Index
Credits
Code Snippets

Content preview from Ruby on Rails Tutorial, 6th Edition

Chapter 14 Following Users

In this chapter, we will complete the Rails Tutorial sample application by adding a social layer that allows users to follow (and unfollow) other users, resulting in each user’s Home page displaying a status feed of the followed users’ microposts. We’ll start by learning how to model relationships between users in Section 14.1, and we’ll build the corresponding web interface in Section 14.2 (including an introduction to Ajax). We’ll end by developing a fully functional status feed in Section 14.3.

This final chapter contains some of the most challenging material in the tutorial, including some Ruby/SQL trickery to make the status feed. Through these examples, you will see how Rails can handle even rather intricate ...

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Ruby on Rails Tutorial, 6th Edition

by Michael Hartl

Chapter 14

Following Users

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