Ruby on Rails Tutorial Learn Web Development with Rails

by Hartl, Michael

• ISBN13: 9780321832054
• ISBN10: 0321832051
• Edition: 2nd
• Format: Paperback
• Copyright: 2012-07-27
• Publisher: Addison-Wesley Professional

Summary

Rails has rapidly become one of the world's most popular web development frameworks. But Rails can be challenging - and, until now, there's been no good way to learn modern Rails development from the ground up. Ruby on Rails 3 Tutorial 2/e fills that enormous gap. Leading expert Michael Hartl teaches today's Rails best practices by walking readers through the construction of a complete application - from start to finish. Ruby on Rails 3 Tutorial 2/e is the first book to show developers how to take full advantage of the latest Rails 3.2 innovations - including techniques that make Rails development easier and more accessible. Hartl covers all facets of application design and implementation, addressing issues ranging from content management and e-commerce to CRM and Railscasts. Developers see each technique in real-world context, motivated by realistic problems. Hartl introduces new concepts at just the right pace, moving from the basics through advanced topics. The new edition has been updated to include: * Fully updated for Rails 3.2 and Ruby 1.9 * Coverage of the new asset pipeline * Behavior-driven development (BDD) with Capybara and RSpec * Introduction to Sass (Syntactically Awesome Stylesheets) * Better automated testing with Guard and Spork * Rolling your own authentication system with has_secure_password * An introduction to writing client-friendly tests with Cucumber

Author Biography

Michael Hartl is a programmer, educator, and entrepreneur. He wrote the first edition of Ruby on Rails Tutorial (Addison-Wesley, 2011), coauthored RailsSpace (Addison-Wesley, 2008), and was cofounder and lead developer of Insoshi, a popular social networking platform based on Rails. He previously taught theoretical and computational physics at the California Institute of Technology, earning the Caltech Lifetime Achievement Award for Excellence in Teaching. Michael is a graduate of Harvard College, holds a Ph.D. in physics from Caltech, and is an alumnus of the Y Combinator entrepreneur program.

Table of Contents

Foreword to the First Edition	p. xv
Foreword to the First Edition	p. xvii
Acknowledgments	p. xix
About the Author	p. xxi
From Zero to Deploy	p. 1
Introduction	p. 3
Comments for Various Readers	p. 4
"Scaling" Rails	p. 7
Conventions in This Book	p. 7
Up and Running	p. 9
Development Environments	p. 10
Ruby, RubyGems, Rails, and Git	p. 12
The First Application	p. 17
Bundler	p. 19
rails server	p. 23
Model-view-controller (MVC)	p. 25
Version Control with Git	p. 27
Installation and Setup	p. 27
Adding and Committing	p. 30
What Good Does Git Do You?	p. 31
GitHub	p. 32
Branch, Edit, Commit, Merge	p. 34
Deploying	p. 39
Heroku Setup	p. 39
Heroku Deployment, Step One	p. 40
Heroku Deployment, Step Two	p. 40
Heroku Commands	p. 41
Conclusion	p. 43
A Demo App	p. 45
Planning the Application	p. 45
Modeling Demo Users	p. 47
Modeling Demo Microposts	p. 48
The Users Resource	p. 49
A User Tour	p. 51
MVC in Action	p. 56
Weaknesses of this Users Resource	p. 62
The Microposts Resource	p. 63
A Micropost Microtour	p. 63
Putting the micro in Microposts	p. 66
A User has_many Microposts	p. 68
Inheritance Hierarchies	p. 70
Deploying the Demo App	p. 73
Conclusion	p. 74
Mostly Static Pages	p. 77
Static Pages	p. 82
Truly Static Pages	p. 82
Static Pages with Rails	p. 85
Our First Tests	p. 93
Test-driven Development	p. 93
Adding a Page	p. 99
Slightly Dynamic Pages	p. 103
Testing a Tide Change	p. 103
Passing Tide Tests	p. 106
Embedded Ruby	p. 108
Eliminating Duplication with Layouts	p. 111
Conclusion	p. 114
Exercises	p. 114
Advanced Setup	p. 117
Eliminating bundle exec	p. 118
Automated Tests with Guard	p. 120
Speeding up Tests with Spork	p. 123
Tests inside Sublime Text	p. 127
Rails-Flavored Ruby	p. 129
Motivation	p. 129
Strings and Methods	p. 134
Comments	p. 134
Strings	p. 135
Objects and Message Passing	p. 138
Method Definitions	p. 141
Back to the Title Helper	p. 142
Other Data Structures	p. 142
Arrays and Ranges	p. 142
Blocks	p. 146
Hashes and Symbols	p. 148
CSS revisited	p. 152
Ruby Classes	p. 153
Constructors	p. 153
Class Inheritance	p. 155
Modifying Built-in Classes	p. 158
A Controller Class	p. 159
A User Class	p. 161
Conclusion	p. 164
Exercises	p. 164
Filling in the Layout	p. 167
Adding Some Structure	p. 167
Site Navigation	p. 169
Bootstrap and Custom CSS	p. 175
Partials	p. 181
Sass and the Asset Pipeline	p. 187
The Asset Pipeline	p. 187
Syntactically Awesome Stylesheets	p. 190
Layout Links	p. 197
Route Tests	p. 200
Rails Routes	p. 202
Named Routes	p. 205
Pretty RSpec	p. 207
User Signup: A First Step	p. 211
Users Controller	p. 212
Signup URI	p. 213
Conclusion	p. 215
Exercises	p. 217
Modeling Users	p. 221
User Model	p. 222
Database Migrations	p. 223
The Model File	p. 228
Creating User Objects	p. 230
Finding User Objects	p. 233
Updating User Objects	p. 235
User Validations	p. 236
Initial User Tests	p. 236
Validating Presence	p. 239
Length Validation	p. 243
Format Validation	p. 245
Uniqueness Validation	p. 249
Adding a Secure Password	p. 254
An Encrypted Password	p. 255
Password and Confirmation	p. 257
User Authentication	p. 260
User Has Secure Password	p. 263
Creating a User	p. 265
Conclusion	p. 267
Exercises	p. 268
Sign Up	p. 271
Showing Users	p. 271
Debug and Rails Environments	p. 272
A Users Resource	p. 278
Testing the User Show Page (with Factories)	p. 282
A Gravatar Image and a Sidebar	p. 286
Signup Form	p. 292
Tests for User Signup	p. 293
Using form_for	p. 297
The Form HTML	p. 301
Signup Failure	p. 303
A Working Form	p. 303
Signup Error Messages	p. 308
Signup Success	p. 312
The Finished Signup Form	p. 313
The Flash	p. 315
The First Signup	p. 317
Deploying to Production with SSL	p. 317
Conclusion	p. 321
Exercises	p. 321
Sign In, Sign Out	p. 325
Sessions and Signin Failure	p. 325
Sessions Controller	p. 326
Signin Tests	p. 330
Signin Form	p. 333
Reviewing Form Submission	p. 336
Rendering with a Flash Message	p. 339
Signin Success	p. 343
Remember Me	p. 343
A Working sign_in Method	p. 349
Current User	p. 351
Changing the Layout Links	p. 355
Signin upon Signup	p. 359
Signing Out	p. 361
Introduction to Cucumber (Optional)	p. 363
Installation and Setup	p. 364
Features and Steps	p. 365
Counterpoint: RSpec Custom Matchers	p. 368
Conclusion	p. 371
Exercises	p. 372
Updating, Showing, and Deleting Users	p. 373
Updating Users	p. 373
Edit Form	p. 374
Unsuccessful Edits	p. 380
Successful Edits	p. 382
Authorization	p. 385
Requiring Signed-in Users	p. 386
Requiring the Right User	p. 390
Friendly Forwarding	p. 392
Showing All Users	p. 396
User Index	p. 396
Sample Users	p. 403
Pagination	p. 404
Partial Refactoring	p. 410
Deleting Users	p. 413
Administrative Users	p. 413
The destroy Action	p. 417
Conclusion	p. 422
Exercises	p. 424
User Microposts	p. 429
A Micropost Model	p. 429
The Basic Model	p. 430
Accessible Attributes and the First Validation	p. 432
User/Micropost Associations	p. 433
Micropost Refinements	p. 439
Content Validations	p. 443
Showing Microposts	p. 445
Augmenting the User Show Page	p. 446
Sample Microposts	p. 450
Manipulating Microposts	p. 454
Access Control	p. 456
Creating Microposts	p. 459
A Proto-feed	p. 467
Destroying Microposts	p. 475
Conclusion	p. 479
Exercises	p. 480
Following Users	p. 483
The Relationship Model	p. 484
A Problem with the Data Model (and a Solution)	p. 485
User/Relationship Associations	p. 491
Validations	p. 495
Followed users	p. 495
Followers	p. 500
A Web Interface for Following Users	p. 503
Sample Following Data	p. 503
Stats and a Follow Form	p. 505
Following and Followers Pages	p. 515
A Working Follow Button the Standard Way	p. 519
A Working Follow Button with Ajax	p. 524
The Status Feed	p. 529
Motivation and Strategy	p. 530
A First Feed Implementation	p. 532
Subselects	p. 535
The New Status Feed	p. 538
Conclusion	p. 539
Extensions to the Sample Application	p. 540
Guide to Further Resources	p. 542
Exercises	p. 543
Index	p. 545
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