... 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 ... học Rails. Sau khi học xong chapter "Getting Start" là có thể bắt đầu quen Rails và làm đượchttp://guides.rubyonrails.org/getting_started.html SáchAgile Web Development with Rails ... 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...
... comments below contain some suggestions for approaching the Rails Tutorial depending on your background.All readers: One common question when learning Rails is whether to learn Ruby first. The ... version control system is a required skill for every softwaredeveloper.There are many options for version control, but the Rails community has largelystandardized on Git, a distributed version ... libsqlite3-dev # Linux only1.2.3 The First ApplicationVirtually all Rails applications start the same way, with the rails command. Thishandy program creates a skeleton Rails application in a directory...
... 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...
... Rails educational ecosystem. Finally,since RubyonRails Tutorial 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 ... don’t have to dig into the C source to use Ruby. ) Ifyou’re a confirmed pull-back-the-curtain kind of person, I recommend The Rails 3 Wayby Obie Fernandez as a companion volume to RubyonRails ... minority.www.it-ebooks.info RUBYON RAILS ™3 TUTORIALwww.it-ebooks.info Acknowledgments Ruby on Rails ™Tutorial owes a lot to my previous Rails book, RailsSpace, and henceto my coauthor on that book,...
... Associations 270One-to-one Relationships 270One-to-many Relationships 271Many-to-many Relationships 271Auto-generated Methods 273Association Extensions 280ActiveRecord Validations 281Validation ... 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 ... 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...
... 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...
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... 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 ... and it’s easy to get it on JRuby. When installingMongrel on the regular Ruby distribution, you need to compile it during the installation process,but when running on JRuby everything will work...
... 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...