Rails 4 - how to use sqlite3 in development and PostgreSQL in production w/Heroku

Question

I am trying to deploy to Heroku but can\'t because the default sqlite3 server is still in place.

Detected sqlite3 gem which is not supported on Heroku.

Answer 1

Try using this for your production DB

production:
  adapter: postgresql
  host: localhost
  encoding: unicode
  database: my_production_database
  pool: 5
  username:
  password:

You can leave username and password blank

Answer 2

Don't do it. You are just going to run into problems down the road. Use the same database in production and development. There are a lot of resources available in documenting the switch from a sqlite to postgres database.

Take the time and switch.

Have a look at this Rails Cast.

http://railscasts.com/episodes/342-migrating-to-postgresql?view=asciicast