explorer_app/config/database.yml
# SQLite. Versions 3.8.0 and up are supported.
# gem install sqlite3
#
# Ensure the SQLite 3 gem is defined in your Gemfile
# gem "sqlite3"
#
default: &default
pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
timeout: 5000
development:
<<: *default
url: <%= ENV.fetch("DATABASE_URL", "sqlite3:db/development.sqlite3").inspect %>