Agile Web Development with Rails phần 6 docx

... describe Action Controller in the context of Rails. Let’s start by looking at the overall context of a Rails application. 16. 1 Context and Dependencies Rails handles many configuration dependencies ... is natural on the web, where static content is stored within folders (directories), which themselves may be within folders, and so on. Report erratum ADVANCED ATTRIBUTES 272 15 .6 Advan...

Ngày tải lên: 07/08/2014, 00:22

... Rails applications must have cookies enabled in their browsers.) Rather than have developers worry about protocols and cookies, Rails pro- vides a simple abstraction. Within the controller, Rails ... sys- tem, but unless you’re using Rails to work with legacy schemas that you can’t change, we recommend you just stick with using the name id. It’s all very well coming up with the...

Ngày tải lên: 07/08/2014, 00:22

... 257 after_create( ), 121, 265 after_destroy( ), 265 after_find( ), 267 , 269 after_initialize(), 267 after_save(), 265 after_update( ), 265 after_validation( ), 265 after_validation_on_create(), 265 after_validation_on_update(), ... 4 86 515 :descendent parameter, 155 Desktop application emulating on Web, 374 destroy() method, 215, 2 26, 241, 4 36 Destroy command, 1 76 see also Gene...

Ngày tải lên: 07/08/2014, 00:22

... erratum CONTENTS vii 16 Action Controller and Rails 278 16. 1 Context and Dependencies 278 16. 2 The Basics 279 16. 3 Routing Requests 280 16. 4 Action Methods 291 16. 5 Cookies and Sessions 301 16. 6 Flash—Communicating ... quickly. 10. No XML! 1.1 Rails Is Agile The title of this book is Agile Web Development with Rails. Youmaybe surprised, then, to discover that we d...

Ngày tải lên: 07/08/2014, 00:22

... etter software faster u sing agile practices. With an extensive back- ground in J2EE and test-driven development, he’s currently putting his experience to work on Rails projects. Chapter 12 Task ... ship things with the same style packaging and then move on to items with different packaging. So, our application shouldn’t enforce just one way of working. After chatting for a while,...

Ngày tải lên: 07/08/2014, 00:22

... name 68 .61 46. 44 46. 44 10 464 4.00 67 69.00 Product#search 8.55 52.23 5.79 100000 0. 06 0. 06 Fixnum#+ 8.15 57.75 5.52 100000 0. 06 0. 06 Math.sqrt 7.42 62 .77 5.02 100000 0.05 0.05 IO#gets 0.04 68 .95 ... controllers, mailers, models, scaffolds, and web services. You can also download addi- tional generator modules from the Rails web site. 1 1 http://wiki.rubyonrails.com /...

Ngày tải lên: 07/08/2014, 00:22

... 227. Report erratum Acts As 2 46 categories id parent_id . . . 1 null . . . 2 1 . . . 3 1 . . . 4 3 . . . 5 1 . . . 6 3 . . . 7 2 . . . 8 6 . . . 9 6 . . . 1 23 4 5 6 7 8 9 Figure 15.1: Representing ... do paul.deposit(350) peter.withdraw(350) end When we run this, we get an exception reported on the console. validations.rb :65 2:in ‘save!': ActiveRecord::RecordInvalid from tran...

Ngày tải lên: 07/08/2014, 00:22

... number_to_percentage (66 .66 666 ) %> 66 .66 7% <%= number_to_percentage (66 .66 666 , :precision => 1) %> 66 .7% <%= number_to_phone(2125551212) %> 212-555-1212 Report erratum LAYOUTS AND COMPONENTS 363 That’s ... RubyGems. Rails comes packaged with its own copy of Builder, so you won’t have to download anything to get started. Report erratum CACHING,PART TWO 367 Re...

Ngày tải lên: 07/08/2014, 00:22

... RFC 261 6 for possible status codes. It’s available online at http://www.w3.org/Protocols/rfc 261 6/rfc 261 6-sec10.html. Report erratum THE RAILS WAY 382 Figure 18.5: Build Real-Time Searches with ... an array, with nice highlighting of the search term in the result. File 1 86 WORDLIST = %w (Rails is a full-stack, open-source web framework in Ruby for writing real-world application...

Ngày tải lên: 07/08/2014, 00:22

... rate: 62 .87 [Kbytes/sec] received Connnection Times (ms) min mean[+/-sd] median max Connect: 0 0 0.0 0 0 Processing: 2 46 300 56. 6 298 60 8 Waiting: 2 46 300 56. 6 298 60 8 Total: 2 46 300 56. 6 298 60 8 Percentage ... 60 8 Percentage of the requests served within a certain time (ms) 50% 298 66 % 307 75% 312 80% 317 90% 340 95% 4 46 98% 512 99% 517 100% 60 8 (last request) On som...

Ngày tải lên: 07/08/2014, 00:22