By Sam Ruby, Dave Thomas, David Heinemeier Hansson
It is a strong textual content, however it should be prompt that an Agile improvement particular publication be learn, both previously or at the same time, whereas evolving the information imparted in those pages. "The artwork of Agile improvement" by means of James Shore is an effective praise to this examining. Agile after all, doesn't in basic terms practice to Ruby and Rails, yet Ruby and Rails are uniquely shaped to advertise Agile options. previous Rails books don't remove darkness from this connection so good as this one does, if in any respect. As such, it may be extra hugely suggested to benefit rails through this booklet because it exposes this connection through-out. As a context delicate framework, rails will be realized to the measure of disclosing simply that a lot, or ... one may well how one can use rails in an totally iterative and collaborative improvement atmosphere. That assertion may still make clear the import of this booklet. One may possibly declare that there's a correct option to research Rails and good then too, the previous method. study it the correct manner, utilizing Agile improvement practices. One fast notes that Agile isn't just a administration software, yet a programmer's improvement technique. in truth it transcends many improvement services, from product administration to trying out, ultimate unlock and endured upkeep and aid. Rails as a framework, is more suitable through an realizing of the way it matches with Agile. This booklet is going miles towards making that transparent.
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Extra resources for Agile Web Development with Rails, Third Edition
First, how do we add dynamic content to a template? Second, where do we get the time from? 1, Builder Templates, on page 514. The second way, which we’ll use here, is to embed Ruby code in the template itself. erb suffix tells Rails to expand the content in the file using a system called ERb (for Embedded Ruby). erb file and outputs a transformed version. The output file is often HTML in Rails, but it can be anything. Normal content is passed through without being changed. However, content between <%= and %> is interpreted as Ruby code and executed.
There’s a lot to Rails. Rather than attack it component by component, let’s roll up our sleeves and write a couple of working applications. In the next chapter we’ll install Rails. After that we’ll write something simple, just to make sure we have everything installed correctly. In Chapter 5, The Depot Application, on page 63 we’ll start writing something more substantial—a simple online store application. 1 Your Shopping List To get Rails running on your system, you’ll need the following. • A Ruby interpreter.
Rb in the app/controllers directory, adding the hello method as shown, then saving the file. rb class SayController < ApplicationController def hello end end 5. Rails is fairly flexible when it comes to parsing incoming URLs. In this chapter, we describe the default mechanism. 2, Routing Requests, on page 432. 9 printing, January 7, 2009) 48 H ELLO , R AILS ! com/say/hello Create an instance of SayController class UserController def hello class SayController # code for o action def hello end class ProductController # code for hello action end def hello end class LoginController # code for hello action end def login end # code .
Agile Web Development with Rails, Third Edition by Sam Ruby, Dave Thomas, David Heinemeier Hansson