By Sam Ruby, Dave Thomas, David Heinemeier Hansson
It is a reliable textual content, however it may be urged that an Agile improvement particular booklet be learn, both previously or at the same time, whereas evolving the data imparted in those pages. "The paintings of Agile improvement" by means of James Shore is an effective praise to this interpreting. Agile in fact, doesn't in simple terms practice to Ruby and Rails, yet Ruby and Rails are uniquely formed to advertise Agile thoughts. earlier Rails books don't light up this connection so good as this one does, if in any respect. As such, it may be extra hugely advised to benefit rails through this e-book because it exposes this connection through-out. As a context delicate framework, rails may be discovered to the measure of revealing simply that a lot, or ... one may methods to use rails in an totally iterative and collaborative improvement atmosphere. That assertion should still make clear the import of this ebook. One may perhaps declare that there's a correct option to examine Rails and good then too, the outdated approach. examine it the best means, utilizing Agile improvement practices. One speedy notes that Agile isn't just a administration device, yet a programmer's improvement method. actually it transcends many improvement capabilities, from product administration to checking out, ultimate unlock and persisted upkeep and aid. Rails as a framework, is more suitable via an knowing of the way it suits 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
But the instance data of the controller object is private to that object. How does ERb get hold of this private data to use in the template? The answer is both simple and subtle. Rails does some Ruby magic so that the instance variables of the controller object are injected into the template object. As a consequence, the view template can access any instance variables set in the controller as if they were its own. ” These folks clearly don’t believe in magic. Avoid spending Christmas with them.
Let’s stop for a minute to consider how we generated the link. " , :action => "goodbye" First, link_to is a method call. ) If you come from a language such as Java, you 10. The link_to method can do a lot more than this, but let’s take it gently for now.... 9 printing, January 7, 2009) 59 W HAT W E J UST D ID might be surprised that Ruby doesn’t insist on parentheses around method parameters. You can always add them if you like. The :action part is a Ruby symbol. 11 The => "goodbye" associates the string goodbye with the name action.
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