Get Agile Web Development with Rails (4th edition) Beta 13 PDF

By Sam Ruby, Dave Thomas, David Heinemeier Hansson

ISBN-10: 1934356549

ISBN-13: 9781934356548

Ruby on Rails is helping you produce high quality, beautiful-looking net functions fast. you think about developing the appliance, and Rails looks after the main points. Tens of millions of builders have used this award-winning booklet to profit Rails. it is a vast, far-reaching instructional and reference that is instructed via the Rails middle group. in case you are new to Rails, you will get step by step counsel. in case you are an skilled developer, this e-book offers you the excellent, insider details you would like. Rails has advanced through the years, and this ebook has developed besides it. We nonetheless begin with a step by step walkthrough of creating a true software, and in-depth chapters examine the integrated Rails good points. This variation now offers new Ruby and Rails clients additional information at the Ruby language and takes extra time to give an explanation for key options all through. top practices on the best way to follow Rails proceed to alter, and this variation retains up. Examples use cookie sponsored classes, HTTP authentication, and energetic Record-based kinds, and the ebook focuses all through at the correct technique to use Rails. also, this variation now displays Ruby 1.9, a brand new unlock of Ruby with sizeable practical and function advancements.

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1 and ::1) and his LAN connection. We can access the application by pointing a browser at the URL http://localhost:3000. 1. If you look at the window where you started the server, you’ll see tracing showing you started the application. 0 printing, February 2, 2011) 39 H ELLO , R AILS ! 1: Newly created Rails application console window. Later, as we write application code and run it via our browser, we’ll be able to use this console window to trace the incoming requests. When the time comes to shut down your application, you can press Ctrl-C in this window to stop WEBrick.

Examples of symbols include :action, :line_items, and :id. You can think of symbols as string literals that are magically made into constants. ” Now that we have used a few methods, let’s move on to how they are defined. Methods Let’s write a method that returns a cheery, personalized greeting. We’ll invoke that method a couple of times: def say_goodnight(name) result = 'Good night, ' + name return result end # Time for bed... puts say_goodnight('Mary-Ellen') puts say_goodnight('John-Boy') Having defined the method, we call it twice.

Org/projects/sqlite-ruby A pure-Ruby version of the Postgres adapter is available. org/projects/postgres-pr. MySQL and SQLite adapters are also available for download as RubyGems (mysql and sqlite3-ruby, respectively). 7 What We Just Did • We installed (or upgraded) the Ruby language. • 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.

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Agile Web Development with Rails (4th edition) Beta 13 (2011) by Sam Ruby, Dave Thomas, David Heinemeier Hansson


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