... up-to-dateversion of the RailsTutorial can be found on the book s website at http://railstutorial.org;if you are reading this book offline, be sure to check the online version of the Rails Tutorialbook ... ptg8286261 RUBY ON RAILS TMTUTORIALSecond Editionwww.it-ebooks.info ptg82862611.3 Version Control with Git 27the context of the demo app. Finally, the sample ... these video tutorials should be a great resource for anyone new to Rails. ’’—Michael Morin, ruby. about.com‘‘Hands-down, I would recommend this book to anyone wanting to get into Ruby onRails development.’’—Michael...
... quen với Migrations, cách truy vấn database, và xử lý formChú ý: khi viết tránh để bị XSS hay SQL injection! Chương Trình Training Rubyon Rails 2. Tài liệuhttp://guides.rubyonrails.org/Đây ... http://code.google.com/p/msysgit/ Rubyon Rails - www.RubyOnRails.org- Web framework, tương tự như Zend, nhưng "full stack", hoàn chỉnh từ lớp presentation tới logging. - Full stack: ... Tại Sao Cần Biết Rubyon Rails? - Ruby Là một ngôn ngữ "thời thượng", dễ học và dễ viết (nhưng khó master!)- So sánh với các ngôn ngữ và framework khác, RubyonRails như xe đua...
... http:/ /rails- tutorial. org/. If you are reading this book offline, be sure to check the online version of the RailsTutorialbook athttp://railstutorial.org /book for the latest updates. In addition, ... Rails educational ecosystem. Finally,since RubyonRailsTutorial uses Rails 3.0, the knowledge you gain here will be fully upto date with the latest and greatest version of Rails. 1 Ruby on ... theworld.1.1.3 Conventions in This Book The conventions in this book are mostly self-explanatory; in this section, I’ll mentionsome that may not be. First, both the HTML and PDF editions of this book are...
... if you want, but you won’t useit for the remainder of this chapter.Creating a New RubyonRails ProjectRadRails is an integrated development environment for Rubyon Rails. (SeeChapter 2.) ... your database connection. Fortunately, trou-bleshooting the connection is the topic of the next section.Troubleshooting your database connectionWhat do you do if you can’t connect to your ... environment (IDE) for Ruby on Rails. In the name RadRails, the Rad stands for “Rapid application devel-opment” (and, of course, Rails stands for Rails ). RadRails is based on theEclipse platform...
... Associations 270One-to-one Relationships 270One-to-many Relationships 271Many-to-many Relationships 271Auto-generated Methods 273Association Extensions 280ActiveRecord Validations 281Validation ... mastery of web application development with Rails. Beginning RubyonRails 978-0-470-06915-8This book is for anyone who wants to develop online applications using Ruby and Rails. A basic understanding ... it’s ready to work with Rails. What’s in a Name?The name RubyonRails is often shortened to Rails. Another common abbreviation is the acronym RoR (pronounced like a lion’s “roar”). I feel it...
... Google. Rails Solutions: RubyonRails Made Easy is anintroduction to RubyonRails with the web designer inmind. Instead of focusing on the intricate syntax of eachmethod, the book focuses on ... bug-tracking system was built using RubyonRails in three months.Figure 1-6. Odeo is a podcasting creation-and-sharing tool built on Rails. INTRODUCTION TO RUBYON RAILS 1317524ch01.qxd 12/13/06 ... 11/30/06 11:18 AM Page 23 Components of Rails A RubyonRails application consists of several components, as you can see in Figure 1-3. Figure 1-3. A generic Rails applicationA simple web request...
... on Rails Beginning Ruby on Rails E-CommerceBeginning Ruby Beginning Rubyon Rails Companion eBookSee last page for details on $10 eBook versionJarkko LaineCompanioneBook AvailableBeginning ... next-generation onlineshops using Rubyon Rails www.apress.comSOURCE CODE ONLINEforums.apress.comFOR PROFESSIONALSBY PROFESSIONALS™Join online discussions:THE APRESS ROADMAPPro Ruby Pro Rubyon Rails Beginning ... compatible with Rails. ■Note Before downloading Ruby, check which version is required by the RubyonRails version that you want to use by reading the online documentation found at www.rubyonrails.org....
... Microsoft’s IronRuby.With JRuby running on the JVM, Ruby is better able to get into some enterprise environ-ments. Even at my day job, where I’ve been pushing Ruby from day one, JRuby is making Ruby solutions ... important is “Convention overConfiguration,” which means that you need to do extremely small amounts of configurationand coding if your application follows the conventions of Rails. It also ... DEVELOPERPractical JRuby onRails Web 2.0 Projects: Bringing RubyonRails to the Java™ PlatformDear Reader,The book you’re holding in your hand right now introduces JRuby onRails in a practical...
... Microsoft’s IronRuby.With JRuby running on the JVM, Ruby is better able to get into some enterprise environ-ments. Even at my day job, where I’ve been pushing Ruby from day one, JRuby is making Ruby solutions ... important is “Convention overConfiguration,” which means that you need to do extremely small amounts of configurationand coding if your application follows the conventions of Rails. It also ... process). JRuby doesn’t support continuations. Continuations are one of those features that areincredibly hard to implement on a system running on a virtual machine, such as Java. Anotherreason for...
... the class Exception. Ruby has a wholefamily tree of exceptions, all of them going back eventually to Exception. Some common exceptionsTable 8.1 shows some common exceptions (each of which ... techniques. Control flow techniques include the following:■Conditional execution—Execution depends on the truth of an expression.■Looping—A single segment of code is executed repeatedly.■Iteration—A ... in Ruby. Finally, we’ll look at Ruby s extensivemechanism for handling error conditions through exceptions. Exceptions stopthe flow of a program, either completely or until the error condition...
... of these opera-tions, and similar ones, depend on objects being accessible in collections. Ruby represents collections of objects by putting them inside container objects.In Ruby, two built-in ... 2Addition10/5 2Integer division10/3 3Integer division (no automatic floating-point conversion)10.0/3.0 3.3333333333Floating-point division1.2 + 3.4 4.6Floating-point addition-12 - ... play at least two huge roles in Ruby and Rails. Some of the founda-tional Ruby libraries upon which Rails is built use hashes to pass data around; inparticular, the Ruby CGI library makes your...