By Dave Thomas, David Heinemeier Hansson, Sam Ruby
Rails simply retains on altering. either Rails three and four, in addition to Ruby 1.9 and 2.0, convey thousands of advancements, together with new APIs and tremendous functionality improvements. The fourth version of this award-winning vintage has been reorganized and refocused so it's extra valuable than ever sooner than for builders new to Ruby and Rails.
Rails four introduces a couple of user-facing adjustments, and the publication has been up-to-date to check all of the most modern alterations and new top practices in Rails. This contains complete help for Ruby 2.0, controller issues, Russian Doll caching, robust parameters, Turbolinks, new try out and bin listing layouts, and masses more.
Ruby on Rails is helping you produce high quality, beautiful-looking internet functions speedy. you think about growing the appliance, and Rails looks after the details.
Tens of millions of builders have used this award-winning publication to profit Rails. It's a extensive, far-reaching instructional and reference that's suggested by means of the Rails center crew. If you're new to Rails, you'll get step by step counsel. If you're an skilled developer, this ebook offers you the great, insider details you need.
Rails has developed through the years, and this booklet has developed besides it. We nonetheless commence with a step by step walkthrough of establishing a true program, and in-depth chapters examine the integrated Rails gains. This version now supplies new Ruby and Rails clients additional info at the Ruby language and takes extra time to give an explanation for key options all through. top practices on easy methods to observe Rails proceed to alter, and this variation retains up. Examples use matters, Russian Doll caching, and Turbolinks, and the ebook focuses all through at the correct option to use Rails. also, this version now works on Ruby 2.0, a brand new free up of Ruby with big practical and function improvements.
This version is for Rails4.0 and beyond.
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Additional resources for Agile Web Development with Rails 4 (Facets of Ruby)
P> ... erb would point the other way. report erratum • discuss Chapter 2. Instant Gratification • 26 ...
... This approach would certainly work, but it’s a bit fragile. If we were to move our application to a different place on the web server, the URLs would no longer be valid. It also encodes assumptions about the Rails URL format into our code; it’s possible a future version of Rails might change this. Fortunately, these aren’t risks we have to take.
We already know that Rails uses a convention to parse the URL into a target controller and an action within that controller. So, a simple approach would be to adopt this URL convention for our links. erb would contain the following: ...
... erb would point the other way. report erratum • discuss Chapter 2. Instant Gratification • 26 ...
... This approach would certainly work, but it’s a bit fragile. If we were to move our application to a different place on the web server, the URLs would no longer be valid.
Rails also provides XML Builder to construct XML documents using Ruby code—the structure of the generated XML will automatically follow the structure of the code. 1, Generating XML with Builder, on page 393. And the Controller! The Rails controller is the logical center of your application. It coordinates the interaction between the user, the views, and the model. However, Rails handles most of this interaction behind the scenes; the code you write concentrates on application-level functionality.