RailsCasts

Latest Episodes:

#46 Catch-all Route Jun 18, 2007

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Sometimes you need to add complex/dynamic routes. This is often impossible to do in routes.rb, but do not worry. It can be accomplished with a catch-all route. See how in this episode.

#45 RJS Tips Jun 15, 2007

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This episode is packed with little RJS goodies. Learn the different ways to access an element, how to add "if" conditions and how to apply an effect to multiple elements.

#44 Debugging RJS Jun 13, 2007

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RJS and AJAX can be difficult to debug. Many times you don't get any error message in the browser. Learn different techniques for solving these tricky problems in this episode.

#43 AJAX with RJS Jun 11, 2007

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This episode will walk you through adding AJAX functionality to a form using RJS. See how to easily update multiple elements on a page.

#42 with_options Jun 08, 2007

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Several methods in rails take a hash of options as the last argument. If you are passing the same options to several methods, you can remove this duplication by using with_options. Learn all about it in this episode.

#41 Conditional Validations Jun 06, 2007

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By default, validations will take place every time the model is saved. Sometimes you only want a validation to happen when certain conditions are met. See how to do that in this episode.

#40 Blocks in View Jun 04, 2007

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If you try to create a helper method which accepts a block, you will run into a few gotchas. Learn the secrets of blocks in views in this episode.

#39 Customize Field Error Jun 01, 2007

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When a validation error occurs, Rails helpfully wraps the field in a div tag so you can style it. But sometimes you don't want this behavior. In this episode you will see how to customize it.

#38 Multibutton Form May 30, 2007

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If you have a form with multiple buttons, you can detect which button was clicked by checking the passed parameters. Learn how in this episode.

#37 Simple Search Form May 28, 2007

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A search form is quite different than other forms, this is because it does not deal with model's attributes. See a good way to add a simple search form in this episode.

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