Object Oriented Design

Download Beginning Ruby on Rails E-Commerce: From Novice to by Jarkko Laine PDF

Posted On April 12, 2017 at 5:49 am by / Comments Off on Download Beginning Ruby on Rails E-Commerce: From Novice to by Jarkko Laine PDF

By Jarkko Laine

Beginning Ruby on Rails E-Commerce: From beginner to Professional is the 1st publication of its variety to lead you thru generating e-commerce purposes with Rails, the stacked net framework taking the area by way of typhoon. The publication dives correct into the method of constructing a production-level internet program utilizing agile methodologies and test-driven improvement mixed with Rails most sensible practices. you will make the most of the most recent crop of Rails plug-ins and helpers that would substantially enhance your programming agenda. you will additionally create a true software step by step, plus the e-book is pushed by means of real-world circumstances throughout.

You will commence through studying the right way to set up Rails and fast create a product catalog interfaced along with your collection of database applied sciences. Then you will find easy methods to construct smooth, Ajax-powered buying carts and upload important gains like shopper suggestions modules. subsequent you will the right way to combine your software with open resource applications just like the Ferret full-text seek engine, and the way to interface with back-end digital cost platforms. you are going to additionally the best way to make your software paintings perfectly with latest creation structures utilizing net companies, after which eventually install and song your software for creation use.

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We also want to make sure that a new Author object is created and that Rails sets the flash[:notice] variable correctly. However, the test code is not really beautiful. Instead of checking the exact amount of authors before and after running the create action, we only want to know that the amount was incremented by one. st/post/ 218#post-218). rb is a file where you can define helper methods that are available to all tests. A helper method can be a custom assertion like above, or any other method that makes writing actual tests easier and cleaner.

As the comment above the method suggests, we remove it and replace it with our own test, test_new, shown in Listing 2-1. 39 40 CHAPTER 2 ■ AUTHOR MANAGEMENT Listing 2-1. /test_helper' require 'admin/author_controller' # Re-raise errors caught by the controller. new end def test_new get :new assert_template 'admin/author/new' assert_tag 'h1', :content => 'Create new author' assert_tag 'form', :attributes => {:action => '/admin/author/create'} end end In the test, we first use the get test helper method to call the new action.

In later chapters, we will teach you how to use the test-driven development technique to write not only functional tests, but also unit and integration tests. 21 22 CHAPTER 1 ■ PROJECT SETUP AND PROOF OF CONCEPT ■Tip Helpers are useful for keeping your views clean and readable. Views shouldn’t contain complex logic and algorithms. Instead, you should refactor your view code and move the complex logic to a helper class. The methods in this class are automatically made available to the view. Using helpers will make your code easier to read and more maintainable.

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