class ActiveRecord::NoDatabaseError

def db_error(db_name)
  NoDatabaseError.new(<<~MSG)
    We could not find your database: #{db_name}. Available database configurations can be found in config/database.yml.
    To resolve this error:
    - Did you not create the database, or did you delete it? To create the database, run:
        bin/rails db:create
    - Has the database name changed? Verify that config/database.yml contains the correct database name.
  MSG
end

def initialize(message = nil, connection_pool: nil)
  super(message || "Database not found", connection_pool: connection_pool)
end