By Dave Thomas
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Extra resources for Agile Web Development with Rails: A Pragmatic Guide
Good file navigation. 6 You need an environment that helps you navigate quickly between these: you’ll add a line to a controller to load up a value, switch to the view to add a line to display it, and then switch to the test to verify you did it all right. Something like Notepad, where you traverse a File Open dialog to select each file to edit, just won’t cut it. I personally prefer a combination of a tree view of files in a sidebar, a small set of keystrokes that’ll let me find a file (or files) in a directory tree by name, and some built-in smarts that knows how to navigate (say) between a controller action and the corresponding view.
Org/): A fully featured editor with support for Ruby. It has extensive plugin support. com/Products/Komodo/): ActiveState’s IDE for dynamic languages, including Ruby. php): A commercial IDE for Ruby. Ask experienced developers who use your kind of operating system which editor they use. Spend a week or so trying alternatives before settling in. And, once you’ve chosen an editor, make it a point of pride to learn some new feature every day. 6. A newly created Rails application enters the world containing 44 files spread across 36 directo- ries.
What gives? It turns out that the WEBrick-based Rails dispatcher is pretty clever. In development mode (as opposed to testing or production), it automatically reloads application source files when a new request comes along. That way, when we edit our application, the dispatcher makes sure it’s running the most recent changes. This is great for development. However, this flexibility comes at a cost—it causes a short pause after you enter a URL before the application responds. That’s caused by the dispatcher reloading stuff.