Latest Screencasts (page 5)

See how to use Javascript and RJS to add and remove form fields dynamically. This episode will build upon the previous episode allowing you to create any number of tasks in one form the same time a project is created.

Complex forms often lead to complex controllers, but that doesn't have to be the case. In this episode see how you can create multiple models through a single form while keeping the controller clean.

Do you ever need to generate HTML code in a helper method? Placing it directly in Ruby strings is not very pretty. Learn a great way to generate HTML through Markaby in this episode.

Rails designates one helper module per controller, but that shouldn't stop you from making custom helper modules to help structure the code. Learn how in this episode.

By default, Rails uses the model's id in the URL. What if you want to use the name of the model instead? You can change this behavior by overriding the to_param method in the model. Watch this episode for details.

Let's say you provide a select menu for setting which category a given product belongs to, but you also want the option of creating a new category by typing the name in a text field. See a great way to do that in this episode.

This episode starts off with a big, messy template. Watch as this code shrinks and becomes more readable while the interface stays the same.

See how to select multiple items using checkboxes and perform an action on the selected items in this episode.

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.

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.