database_for_postgresqlapp.yml

<% branch_name = `git symbolic-ref HEAD 2>/dev/null`.chomp.sub('refs/heads/', '') %>
<% repository_name = `git rev-parse --show-toplevel`.split('/').last.strip %>

# Check https://gist.github.com/neerajdotname/b9d53f8a234da9d8c007de5e3d98bc21 to see
# details about the restriction on database name

# If you prefer to have branch name in the database name then use following
# database: <%= "#{repository_name}_development_#{branch_name}"[0...63] %>

development:
  adapter: postgresql
  database: <%= "#{repository_name}_development"[0...63] %>
  host: localhost
  pool: 5

test:
  adapter: postgresql
  database: <%= "#{repository_name}_test"[0...63] %>
  host: localhost
  pool: 5