By Sam Ruby
Ruby on Rails is helping you produce fine quality, beautiful-looking net functions fast. you consider developing the applying, and Rails looks after the main points. Tens of hundreds of thousands of builders have used this award-winning publication to benefit Rails. it is a extensive, far-reaching educational and reference that is instructed through the Rails middle staff. in case you are new to Rails, you will get step by step advice. in case you are an skilled developer, this ebook provides you with the excellent, insider details you wish. Rails has advanced through the years, and this booklet has developed in addition to it. We nonetheless begin with a step by step walkthrough of establishing a true software, and in-depth chapters examine the integrated Rails good points. This variation now provides new Ruby and Rails clients additional info at the Ruby language and takes extra time to provide an explanation for key innovations all through. top practices on tips on how to practice Rails proceed to alter, and this variation retains up. Examples use cookie subsidized periods, HTTP authentication, and lively Record-based kinds, and the publication focuses all through at the correct option to use Rails. also, this variation now displays Ruby 1.9, a brand new unencumber of Ruby with big practical and function advancements.
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Additional info for Agile Web Development with Rails (Pragmatic Programmers)
These files live in standard locations in the Rails hierarchy: controllers go into app/controllers, and views go into subdirectories of app/views. See Figure 3, Standard locations for controllers and views, on page 21. Making It Dynamic So far, our Rails application is pretty boring—it just displays a static page. To make it more dynamic, let’s have it show the current time each time it displays the page. To do this, we need to make a change to the template file in the view—it now needs to include the time as a string.
We installed (or upgraded) the Rails framework. • We installed (or upgraded) the SQLite3 database. • We selected an editor. Now that we have Rails installed, let’s use it. It’s time to move on to the next chapter where we create our first application. report erratum • discuss In this chapter, we’ll see • creating a new application, • starting the server, • accessing the server from a browser, • producing dynamic content, • adding hypertext links, and • passing data from the controller to the view.
4. Rails looks for a template to display the result. erb). 5. Rails processes this file through the ERB templating system, executing any embedded Ruby and substituting in values set up by the controller . 6. The result is returned to the browser, and Rails finishes processing this request. This isn’t the whole story—Rails gives you lots of opportunities to override this basic workflow (and we’ll be taking advantage of them shortly). As it stands, our story illustrates convention over configuration, one of the fundamental parts of the philosophy of Rails.
Agile Web Development with Rails (Pragmatic Programmers) by Sam Ruby