Latest Screencasts

MetaWhere provides a way to do complex find conditions without SQL in Active Record. MetaSearch makes it easy to create search forms with many find options.

The new Active Record query methods in Rails 3 might seem like magic at first. But in this episode I unravel how it works by browsing the Rails 3 source code.

See how to create a multistep (wizard) form from scratch in this episode.

Learn some advanced techniques regarding named scopes and get an introduction to Arel in this episode.

Learn how to refactor a set of conditional Active Record queries using a Dynamic Delegator.

Rails 3 offers several new additions to validations. Here learn how to make a custom error_messages partial, reflect on validations, and clean up complex validations in a model.

Rails 3 introduces a new query interface for performing finds in Active Record. See how it works along with the changes in named scopes.

Handling multiple models in a single form is much easier with the accepts_nested_attributes_for method. See how to use this method to handle nested model fields.

If you want to create a model without a database backend, you simply need to define a couple methods in the model like I show in this episode.

Learn how to set up a one-to-many or many-to-many association which is entirely embedded into a single column through a string or bitmask.