Can I write PostgreSQL functions on Ruby on Rails?

Question

We are starting a project based on Ruby on Rails. We used to work with Perl and PostgreSQL functions, and with Rails and Active Record I\'ve not seen how we are supposed to

Answer 1

If your only requirement is creating them somewhere in your Rails app, this is possible through ActiveRecord::Base.connection.execute, which you can use to execute raw SQL queries.

stmt = 'CREATE FUNCTION...'
ActiveRecord::Base.connection.execute stmt

You would then call the function using ActiveRecord::Base.connection.execute as well (I'd imagine you'd have methods in your model to handle this).