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Self-Referential Association
Creating a social networking site often requires a self-referential association on the User model to define friends/followers. In this episode I show how to do exactly that.
(14 minutes)
Feed Parsing
Learn two different techniques for parsing an RSS feed using Feedzirra in this episode!
(10 minutes)
Sortable Lists
Creating drag & drop sortable lists is fairly easy using Prototype and the built in helper methods. See how in this episode.
(8 minutes)
Beta Invitations
You know those invitation systems where a given user can invite a number of other people to join? That's what I show you how to make in this episode.
(22 minutes)
Two Many-to-Many
There are two different ways to set up a many-to-many association in Rails. In this episode you will see how to implement both ways along with some tips on choosing the right one for your project.
(9 minutes)
Counter Cache Column
If you need to display the record count for a has_many association, you can improve performance by caching that number in a column.
(7 minutes)