Download Agile Web Development with Rails (4th edition) Beta 13 by Sam Ruby, Dave Thomas, David Heinemeier Hansson PDF

By Sam Ruby, Dave Thomas, David Heinemeier Hansson

Ruby on Rails is helping you produce fine quality, beautiful-looking net functions speedy. you think about growing the appliance, and Rails looks after the main points. Tens of hundreds of thousands of builders have used this award-winning ebook to benefit Rails. it is a extensive, far-reaching educational and reference that is suggested through the Rails center staff. if you are new to Rails, you will get step by step suggestions. if you are an skilled developer, this booklet provide you with the excellent, insider info you would like. Rails has advanced through the years, and this ebook has developed in addition to it. We nonetheless commence with a step by step walkthrough of establishing a true program, and in-depth chapters examine the integrated Rails gains. This variation now supplies new Ruby and Rails clients additional information at the Ruby language and takes extra time to give an explanation for key suggestions all through. most sensible practices on how one can practice Rails proceed to alter, and this variation retains up. Examples use cookie subsidized periods, HTTP authentication, and energetic Record-based varieties, and the publication focuses all through at the correct option to use Rails. also, this version now displays Ruby 1.9, a brand new unencumber of Ruby with tremendous practical and function advancements.

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Spend a week or so trying alternatives before settling in. The Desktop We’re not going to tell you how to organize your desktop while working with Rails, but we will describe what we do. Most of the time, we’re writing code, running tests, and poking at an application in a browser. So, our main development desktop has an editor window and a browser window permanently open. We also want to keep an eye on the logging that’s generated by the application, so we keep a terminal window open. In it, we use tail -f to scroll the contents of the log file as it’s updated.

Now that we have used a few methods, let’s move on to how they are defined. Methods Let’s write a method that returns a cheery, personalized greeting. We’ll invoke that method a couple of times: def say_goodnight(name) result = 'Good night, ' + name return result end # Time for bed... puts say_goodnight('Mary-Ellen') puts say_goodnight('John-Boy') Having defined the method, we call it twice. In both cases, we pass the result to the method puts, which outputs to the console its argument followed by a newline (moving on to the next line of output).

Name completion. Names in Rails tend to be long. A nice editor will let you type the first few characters and then suggest possible completions to you at the touch of a key. We hesitate to recommend specific editors because we’ve used only a few in earnest and we’ll undoubtedly leave someone’s favorite editor off the list. com/). 0 on Mac OS X has an Organizer that provides much of what you might need. html. com/products/radrails) is an integrated Rails development environment that runs in Aptana Studio and Eclipse.

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