The Rails 3 Way, 2nd Edition (Addison-Wesley Professional by Obie Fernandez

By Obie Fernandez

The Rails™ three manner is a entire source that digs into the recent gains in Rails three and maybe extra importantly, the reason in the back of them.—Yehuda Katz, Rails center The Bible for Ruby on Rails software improvement   Ruby on Rails strips complexity from the advance approach, permitting specialist builders to target what concerns such a lot: offering company price through fresh and maintainable code. The Rails™ three manner is the one entire, authoritative advisor to offering production-quality code with Rails three. Pioneering Rails specialist Obie Fernandez and a workforce of prime specialists light up the full Rails three API, in addition to the idioms, layout techniques, and libraries that make constructing functions with Rails so strong. Drawing on their unsurpassed adventure and song list, they deal with  the true demanding situations improvement groups face, displaying the right way to use Rails three to maximise your productiveness.   utilizing a number of targeted code examples, the writer systematically covers Rails three key functions and subsystems, making this booklet a reference that you'll flip to repeatedly. He provides complicated Rails programming options which were confirmed potent in day by day utilization on dozens of construction Rails platforms and provides very important insights into behavior-driven improvement and creation issues akin to scalability. Dive deep into the Rails three codebase and become aware of why Rails is designed how it is—and how you can make it do what you will have it to do. This ebook may also help you examine what’s new in Rails three elevate your productiveness as an internet program developer become aware of the general pleasure in programming with Rails Leverage Rails’ strong functions for development REST-compliant APIs force implementation and safeguard long term maintainability utilizing RSpec layout and control your area layer utilizing energetic list comprehend and application complicated application flows utilizing motion Controller grasp refined URL routing strategies Use Ajax suggestions through Rails three aid for unobtrusive JavaScript discover ways to expand Rails with renowned gemstones and plugins, and the way to write down your individual expand Rails with the easiest third-party plug-ins and write your individual combine e-mail providers into your functions with motion Mailer enhance program responsiveness with heritage processing Create your personal non-Active list area periods utilizing lively version grasp Rails’ application periods and extensions in lively aid

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About 20 lines of output 18 Chapter 1: Rails Environments and Configuration The bottom line is that you should rarely need to explicitly load Ruby code in your Rails applications (using require) if you follow the naming conventions. 2 Whiny Nils Rails attempts to help newbie developers figure out what’s wrong with their code with extensions to Ruby’s NilClass. whiny_nils determines whether this feature is enabled. By default it is on in development and test modes, and it is off in production mode.

RVM by Wayne Seguin allows you to easily install, manage and work with multiple Ruby environments from interpreters to sets of gems and it’s a must-have tool for modern Rails developers. http://rvm. 0) Your bundle is complete! Use `bundle show [gemname]` to see where a bundled gem is installed. The install command updates all dependencies named in your Gemfile to the latest versions that do not conflict with other dependencies. You can opt to install dependencies, except those in specified groups using the --without option.

We just need to use the Rails console, which by the way is one of the best things about working in Rails. You fire up the console from your terminal with the rails console command. pluralize # Inflector features are mixed into String by default => "pensums" As you can see in the example, Inflector tries to be smart, pluralizing virus as viri; but if you know your Latin you have already noticed that the plural pensum should actually be pensa. 6 However, you can teach the inflector new tricks by adding new pattern rules, by pointing out an exception, or by declaring certain words unpluralizable.

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