Pinned Loading

1. description.markdown description.markdown

   1

   Polymorphic Associations reversed

   2

   ---------------------------------

   3

   4

   It's pretty easy to do polymorphic associations in Rails: A Picture can belong to either a BlogPost or an Article. But what if you need the relationship the other way around? A Picture, a Text and a Video can belong to an Article, and that article can find all media by calling @article.media

   5