Textmate ruby on rails tutorial code#
Paste your HTML or ERB code into a text field, click convert, and you'll have clean Haml code, ready to paste in your app views. But it is easy to convert ERB to Haml using this website:
Most Rails examples and tutorials use ERB. If you are using vim, you can "install vim plugins for Haml". TextMate bundles will work with the popular Sublime Text 2 editor as well. The most current is the "haml-textmate-bundle": from Philippe Huibonhoa. There are several versions of TextMate bundles for Haml. You'll want to add Haml syntax highlighting to your text editor. And when your Rails application loads, Haml will be loaded and initialized. Any time you generate a controller or scaffold, you'll get Haml instead of ERB templates.
With the haml-rails gem, there is no need to modify the *application.rb* file to accommodate Haml. You'll need extra gems in the *Gemfile* for Haml: Here are instructions for adding Haml to an existing Rails project.
Textmate ruby on rails tutorial how to#
And Haml will break if everyone on the team is not using tabs or spaces for indentation consistently.įinally, for someone new to Rails, Haml is one more new thing to learn, which may not be welcome when there's so much to learn already.ĭespite these drawbacks, I like to use Haml because it eliminates superfluous markup and makes view code much easier to read.īefore you start a project with Haml, read "advice from Chris Eppstein": about how to use Haml.įor more, see a discussion about Haml's advantages and drawbacks, titled "HAML: the unforgivable sin". If you're working on a team, you may find designers are more comfortable with ERB as it more closely resembles familiar HTML. An IDE that provides auto-indenting can make Haml easier to use (see "HAML in RubyMine":). Indentation is significant in Haml, which makes for well-structured code, but failures resulting from indentation errors are annoying when using Haml. Haml is intended for "elegant" markup, eliminating the repetitive tags of HTML and integrating conditional logic succinctly. Haml eliminates the delimiters and uses indentation to mark the beginning and end of markup so that closing tags are not required. It preserves the syntax of HTML and allows Ruby code to be embedded within a pair of delimiters. "ERB": is a templating system that embeds Ruby into an HTML document, similar to ASP, JSP and PHP. "Haml": is a popular alternative to the default Rails templating language ("ERB"). Please accept our invitation to "join the RailsApps project". Support for the project comes from subscribers. Rails changes frequently each application is known to work and serves as your personal "reference implementation." Each application is accompanied by a tutorial so there is no mystery code. Hundreds of developers use the apps, report problems as they arise, and propose solutions. The "RailsApps project": provides example applications that developers use as starter apps.
This is an article from the RailsApps project. If you're new to Rails, see "What is Ruby on Rails?":, the book "Learn Ruby on Rails":, and recommendations for a "Rails tutorial". A guide for developers using the example apps from the "RailsApps": project. 🚨 github-wiki-see.page does not render Textile.
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