Download e-book for iPad: Agile Web Development with Rails: A Pragmatic Guide by Dave Thomas

By Dave Thomas

ISBN-10: 097669400X

ISBN-13: 9780976694007

I purchased this one with 'Programming Ruby' considering that i'd want either to appreciate what RoR is all approximately, yet 'Programming Ruby' remains to be at the shelf and in a couple of days i used to be operating the purchasing cart instance. wonderful means to profit the way to use the framework. And from what I observed, the recent model is evolving on the comparable quickly speed as Rails. that is my subsequent purchase.

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Additional resources for Agile Web Development with Rails: A Pragmatic Guide (Pragmatic Programmers)

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Rhtml. rhtml? ) For now, let’s just put some basic HTML in there. rhtml, and refresh your browser window. You should see it display our friendly greeting. Notice that we didn’t have to restart the application to see the update. During development, Rails automatically integrates changes into the running application as you save files. So far, we’ve added code to two files in our Rails application tree. We added an action to the controller, and we created a template to display a page in the browser.

If we were to move our application to a different place on the web server, the URLs would no longer be valid. It also encodes assumptions about the Rails URL format into our code; it’s possible a future version of Rails might change this. Fortunately, these aren’t risks we have to take. Rails comes with a bunch of helper methods that can be used in view templates.

It is now <%= @time %>. %> sequence. This creates a link to a URL that will invoke the goodbye( ) action. The first parameter in the call to link_to( ) is the text to be displayed in the hyperlink, and the next parameter tells Rails to generate the link to the goodbye action.

When you’re done using the application, you can press control-C to stop WEBrick. At this point, we have a new application running, but it has none of our code in it. Let’s rectify this situation. 2 Hello, Rails! Dave speaking: I can’t help it—I just have to write a Hello, World! program to try out a new system. The equivalent in Rails would be an application that sends our cheery greeting to a browser. As we discussed in Chapter 2, The Architecture of Rails Applications, on page 9, Rails is a Model-View-Controller framework.

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Agile Web Development with Rails: A Pragmatic Guide (Pragmatic Programmers) by Dave Thomas


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