We'll go over what this means Saturday.
This installer will install postgresql in such a way that you'll need to adjust your database.yml file to look like this in each of the three sections. When editing this file, note: you'll need to add the port part and the host and remove the username and password parts. Also be sure to adjust the database section to fill in your application name where there are all caps. NOTE: indentation is super important - make sure they line up and rather than copy & pasting this, type this in):
development:
adapter: postgresql
encoding: unicode
database: appname-dev
pool: 5
host: localhost
username: action
password:
test:
adapter: postgresql
encoding: unicode
database: appname-test
pool: 5
host: localhost
username: action
password:
production:
adapter: postgresql
encoding: unicode
database: appname-prod
pool: 5
host: localhost
username: action
password: