A Simplified Query Interface for Relationships in Active Record 4 10 Mar 2013 # Rails 4 now lets you simplify "belongs_to" association queries: # Before Post.where(author_id: @author) Image.where(imageable_id: @cat, imageable_type: 'Cat') # After Post.where(author: @author) Image.where(imageable: @cat) About six months ago I added a new feature to Active Record that allows you to write simpler que