class ActiveRecord::DatabaseConfigurations

def resolve(config) # :nodoc:

:nodoc:
# => DatabaseConfigurations::UrlConfig.new(config: {"adapter" => "postgresql", "host" => "localhost", "database" => "foo"})
DatabaseConfigurations.new({}).resolve("postgresql://localhost/foo")

Connection URL.

# => DatabaseConfigurations::HashConfig.new(config: {"adapter" => "sqlite3"})
DatabaseConfigurations.new({}).resolve("adapter" => "sqlite3")

One layer deep hash of connection values.

# => DatabaseConfigurations::HashConfig.new(env_name: "production", config: {})
DatabaseConfigurations.new("production" => {}).resolve(:production)

Symbol representing current environment.

== Examples

Always returns a DatabaseConfiguration::DatabaseConfig
Returns fully resolved connection, accepts hash, string or symbol. 
def resolve(config) # :nodoc:
  return config if DatabaseConfigurations::DatabaseConfig === config
  case config
  when Symbol
    resolve_symbol_connection(config)
  when Hash, String
    build_db_config_from_raw_config(default_env, "primary", config)
  else
    raise TypeError, "Invalid type for configuration. Expected Symbol, String, or Hash. Got #{config.inspect}"
  end
end