sqlite: :adapter: sqlite :dbfile: db_populate_plugin.sqlite.db sqlite3: :adapter: sqlite3 :dbfile: db_populate_plugin.sqlite3.db postgresql: :adapter: postgresql :username: postgres :password: postgres :database: db_populate_plugin_test :min_messages: ERROR mysql: :adapter: mysql :host: localhost :username: rails :password: :database: db_populate_plugin_test