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Ruby on Rails Tutorial: Learn Web Development with Rails, Third Edition

Name: Ruby on Rails Tutorial: Learn Web Development with Rails, Third Edition
Author: Michael Hartl
ISBN: 9780134077734

by Michael Hartl

April 2015

Beginner

744 pages

18h 19m

English

Addison-Wesley Professional

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About This eBook
Title Page
Copyright Page
Praise for Michael Hartl’s Books and Videos on Ruby on Rails
Contents
Foreword to the First Edition
Foreword to the Third Edition
Acknowledgments
About the Author
Chapter 1. From Zero to Deploy
1.1 Introduction1.1.1 Prerequisites1.1.2 Conventions in This Book1.2 Up and Running1.2.1 Development Environment1.2.2 Installing Rails1.3 The First Application1.3.1 Bundler1.3.2 rails server1.3.3 Model–View–Controller1.3.4 Hello, World!1.4 Version Control with Git1.4.1 Installation and Setup1.4.2 What Are the Benefits of Using Git?1.4.3 Bitbucket1.4.4 Branch, Edit, Commit, Merge1.5 Deploying1.5.1 Heroku Setup1.5.2 Heroku Deployment, Step 11.5.3 Heroku Deployment, Step 21.5.4 Heroku Commands1.6 Conclusion1.6.1 What We Learned in This Chapter1.7 Exercises

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 Chapter2.5 Exercises
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 Exercises3.7 Advanced Testing Setup3.7.1 MiniTest Reporters3.7.2 Backtrace Silencer3.7.3 Automated Tests with Guard
Chapter 4. Rails-Flavored Ruby
4.1 Motivation4.2 Strings and Methods4.2.1 Comments4.2.2 Strings4.2.3 Objects and Message Passing4.2.4 Method Definitions4.2.5 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 Chapter4.6 Exercises
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 Style Sheets5.3 Layout Links5.3.1 Contact Page5.3.2 Rails Routes5.3.3 Using Named Routes5.3.4 Layout Link Tests5.4 User Sign-up: A First Step5.4.1 Users Controller5.4.2 Sign-up URL5.5 Conclusion5.5.1 What We Learned in This Chapter5.6 Exercises
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 Length6.3.4 Creating and Authenticating a User6.4 Conclusion6.4.1 What We Learned in This Chapter6.5 Exercises
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 Sign-up Form7.2.1 Using form_for7.2.2 Sign-up Form HTML7.3 Unsuccessful Sign-ups7.3.1 A Working Form7.3.2 Strong Parameters7.3.3 Sign-up Error Messages7.3.4 A Test for Invalid Submission7.4 Successful Sign-ups7.4.1 The Finished Sign-up Form7.4.2 The Flash7.4.3 The First Sign-up7.4.4 A Test for Valid Submission7.5 Professional-Grade Deployment7.5.1 SSL in Production7.5.2 Production Web Server7.5.3 Ruby Version Number7.6 Conclusion7.6.1 What We Learned in This Chapter7.7 Exercises
Chapter 8. Log In, Log Out
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 Sign-up8.3 Logging Out
8.4 Remember Me
8.4.1 Remember Token and Digest8.4.2 Login with Remembering8.4.3 Forgetting Users8.4.4 Two Subtle Bugs8.4.5 “Remember Me” Check Box8.4.6 Remember Tests8.5 Conclusion8.5.1 What We Learned in This Chapter8.6 Exercises
Chapter 9. Updating, Showing, and Deleting Users
9.1 Updating Users9.1.1 Edit Form9.1.2 Unsuccessful Edits9.1.3 Testing Unsuccessful Edits9.1.4 Successful Edits (with TDD)9.2 Authorization9.2.1 Requiring Logged-in Users9.2.2 Requiring the Right User9.2.3 Friendly Forwarding9.3 Showing All Users9.3.1 Users Index9.3.2 Sample Users9.3.3 Pagination9.3.4 Users Index Test9.3.5 Partial Refactoring9.4 Deleting Users9.4.1 Administrative Users9.4.2 The destroy Action9.4.3 User Destroy Tests9.5 Conclusion9.5.1 What We Learned in This Chapter9.6 Exercises
Chapter 10. Account Activation and Password Reset
10.1 Account Activation10.1.1 Account Activations Resource10.1.2 Account Activation Mailer Method10.1.3 Activating the Account10.1.4 Activation Test and Refactoring
10.2 Password Reset
10.2.1 Password Resets Resource10.2.2 Password Resets Controller and Form10.2.3 Password Reset Mailer Method10.2.4 Resetting the Password10.2.5 Password Reset Test10.3 Email in Production10.4 Conclusion10.4.1 What We Learned in This Chapter10.5 Exercises10.6 Proof of Expiration Comparison
Chapter 11. User Microposts
11.1 A Micropost Model11.1.1 The Basic Model11.1.2 Micropost Validations11.1.3 User/Micropost Associations11.1.4 Micropost Refinements11.2 Showing Microposts11.2.1 Rendering Microposts11.2.2 Sample Microposts11.2.3 Profile Micropost Tests11.3 Manipulating Microposts11.3.1 Micropost Access Control11.3.2 Creating Microposts11.3.3 A Proto-feed11.3.4 Destroying Microposts11.3.5 Micropost Tests11.4 Micropost Images11.4.1 Basic Image Upload11.4.2 Image Validation11.4.3 Image Resizing11.4.4 Image Upload in Production11.5 Conclusion11.5.1 What We Learned in This Chapter11.6 Exercises
Chapter 12. Following Users
12.1 The Relationship Model12.1.1 A Problem with the Data Model (and a Solution)12.1.2 User/Relationship Associations12.1.3 Relationship Validations12.1.4 Followed Users12.1.5 Followers12.2 A Web Interface for Following Users12.2.1 Sample Following Data12.2.2 Stats and a Follow Form12.2.3 Following and Followers Pages12.2.4 A Working Follow Button the Standard Way12.2.5 A Working Follow Button Created with Ajax12.2.6 Following Tests12.3 The Status Feed12.3.1 Motivation and Strategy12.3.2 A First Feed Implementation12.3.3 Subselects12.4 Conclusion12.4.1 Guide to Further Resources12.4.2 What We Learned in This Chapter12.5 Exercises
Index
Code Snippets

Content preview from Ruby on Rails Tutorial: Learn Web Development with Rails, Third Edition

Chapter 12. Following Users

In this chapter, we will complete the 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 12.1, and we’ll build the corresponding web interface in Section 12.2 (including an introduction to Ajax). We’ll end by developing a fully functional status feed in Section 12.3.

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 data models, which ...

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The Ruby on Rails Tutorial: Learn Web Development With Rails, Fourth Edition

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Ruby on Rails Tutorial: Learn Web Development with Rails, Third Edition

by Michael Hartl

Chapter 12. Following Users

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