Question

In some Rails model definitions, there is a comment block at the top that contains the schema information.

# == Schema Information                                    # Schema version: 20090122060318                           #                                                          # Table name: table_name #                                                          #  id            :integer(4)      not null, primary key    ... 

When does this get updated? Is it only generated once, when you use the generator script to create the model? Is there a way to update this block when migrations are performed?

Answer 1

Seems like output of the annotate_models plugin. Just install it and run annotate in your rails root and the schema information will update automatically. Ideally, run it after each migration.