On Friday, February 20, 2015 at 11:50:50 PM UTC, Jason Hsu, Rubyist wrote: > As you know, Heroku uses the PostgreSQL database by default. > > However, when you deploy an app that you created with the use of SQLite in > the development environment, the config/database.yml file on the Heroku > server is still configured for SQLite. > > Exactly how does Heroku make the config/database.yml file relevant? How does > the app get the database name, username, and password in the Heroku > environment?
On older rails versions heroku entirely rewrites the database.yml file. On rails 4.2 it doesn't need to because rails will use a DATABASE_URL environment variable if it is set. See https://devcenter.heroku.com/articles/heroku-postgresql#connecting-in-ruby for more details Fred -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-talk@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/3d627354-878c-410e-8197-d34335a0010b%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
