New PDF release: Agile Web Development with Rails, Third Edition

By Sam Ruby, Dave Thomas, David Heinemeier Hansson

ISBN-10: 1934356166

ISBN-13: 9781934356166

It is a reliable textual content, however it may be instructed that an Agile improvement particular e-book be learn, both previously or at the same time, whereas evolving the data imparted in those pages. "The artwork of Agile improvement" by means of James Shore is an effective praise to this analyzing. Agile in fact, doesn't in simple terms practice to Ruby and Rails, yet Ruby and Rails are uniquely formed to advertise Agile concepts. earlier 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 steered to profit rails through this publication because it exposes this connection through-out. As a context delicate framework, rails might be realized to the measure of disclosing simply that a lot, or ... one may possibly use rails in an absolutely iterative and collaborative improvement surroundings. That assertion should still make clear the import of this publication. One may well declare that there's a correct solution to examine Rails and good then too, the outdated means. study it the fitting approach, utilizing Agile improvement practices. One speedy notes that Agile isn't just a administration instrument, yet a programmer's improvement method. in truth it transcends many improvement capabilities, from product administration to trying out, ultimate free up and persevered upkeep and help. Rails as a framework, is more desirable by means of an realizing of ways it suits with Agile. This e-book is going miles towards making that transparent.

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... This approach would certainly work, but it’s a bit fragile. If we were to move our application to a different place on the web server, the URLs would no longer be valid. It also encodes assumptions about the Rails URL format into our code; it’s possible a future version of Rails might change this.

But what should it do? For now, it doesn’t have to do anything. Remember that a controller’s job is to set up things so that the view knows what to display. In our first application, there’s nothing to set up, so an empty action will work fine. 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.

To start this, click the I button in the top-left corner of the InstantRails window (the button has a black I with a red dot in the lower right). , followed by Open Ruby Console Window. 1, on the following page. You can verify your versions of Ruby and Rails by typing the commands ruby -v and rails -v, respectively. At this point, you’re up and running. But, before you skip to the start of the next chapter you should know three important facts. First, and most important, whenever you want to enter commands in a console window, you must use a console started from the InstantRails menu.

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Agile Web Development with Rails, Third Edition by Sam Ruby, Dave Thomas, David Heinemeier Hansson

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