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Nested Model Form (revised)
Episode #196Apr 19, 2012228 comments

Nested Model Form (revised)

Handling multiple models in a single form is easy with accepts_nested_attributes_for. Here you will also learn how to add and remove nested records through JavaScript. (11 minutes)
Nested Model Form Part 1
Episode #196Jan 11, 2010184 comments

Nested Model Form Part 1

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. (11 minutes)
Tree-Based Navigation (revised)
Episode #162Dec 01, 201293 comments

Tree-Based Navigation (revised)

If your Rails app is content-heavy, consider organizing it in a tree menu structure. Here I show how to add top-level tabs, nested links in a side bar, and breadcrumbs to go up the hierarchy. (10 minutes)
Model Name in URL (revised)
Episode #63Dec 16, 201285 comments

Model Name in URL (revised)

A model's ID in the URL is not very helpful to the user. Consider adding the name which can also improve SEO. Learn how to override to_param, add a slug attribute, and make a catch all route for deep nesting. (9 minutes)
Polymorphic Association
Episode #154Mar 23, 2009125 comments

Polymorphic Association

Polymorphic associations can be perplexing. In this episode I show you how to set it up in Active Record and then move to the controller and view layer. (8 minutes)