Sam Ruby, Dave Thomas, David Heinemeier Hansson's Agile Web Development with Rails (4th Edition - final) PDF

By Sam Ruby, Dave Thomas, David Heinemeier Hansson

ISBN-10: 1934356549

ISBN-13: 9781934356548

Ruby on Rails is helping you produce high quality, beautiful-looking internet functions fast. you think about growing the applying, and Rails looks after the main points. Tens of millions of builders have used this award-winning e-book to benefit Rails. it is a huge, far-reaching instructional and reference that is instructed through the Rails middle group. if you are new to Rails, you will get step by step suggestions. in case you are an skilled developer, this e-book provides you with the excellent, insider details you wish. Rails has developed through the years, and this e-book has advanced besides it. We nonetheless commence with a step by step walkthrough of establishing a true program, and in-depth chapters examine the integrated Rails positive aspects. This version now provides new Ruby and Rails clients additional info at the Ruby language and takes extra time to give an explanation for key thoughts all through. top practices on find out how to practice Rails proceed to alter, and this variation retains up. Examples use cookie subsidized classes, HTTP authentication, and energetic Record-based varieties, and the publication focuses all through at the correct solution to use Rails. also, this version now displays Ruby 1.9, a brand new liberate of Ruby with large useful and function advancements.

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Additional info for Agile Web Development with Rails (4th Edition - final)

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7 What We Just Did • We installed (or upgraded) the Ruby language. • We installed (or upgraded) the Rails framework. • We installed (or upgraded) the SQLite3 database. • We selected an editor. Now that we have Rails installed, let’s use it. It’s time to move on to the next chapter where we create our first application. 0 printing, March 2011) 34 In this chapter, we’ll see • • • • • • creating a new application, starting the server, accessing the server from a browser, producing dynamic content, adding hypertext links, and passing data from the controller to the view.

This experience will continue as we move on to the next chapter and build a much bigger application. glob('*') Use it to set an instance variable in a controller action, and then write the corresponding template that displays the filenames in a list on the browser. Hint: you can iterate over a collection using something like this: <% for file in @files %> file name is: <%= file %> <% end %> You might want to use a

    for the list. ) Cleaning Up Maybe you’ve been following along and writing the code in this chapter.

    In our case, we created a controller named say, so the views will be in the directory app/views/say. By default, Rails looks for templates in a file with the same name as the action it’s handling. erb in the directory app/views/say. erb? 0 printing, March 2011) 39 H ELLO , R AILS ! erb, and refresh your browser window. You should see it display our friendly greeting: In total, we’ve looked at two files in our Rails application tree. We looked at the controller, and we modified a template to display a page in the browser.

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    Agile Web Development with Rails (4th Edition - final) by Sam Ruby, Dave Thomas, David Heinemeier Hansson


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