Good notes posted by arronwashington

Careful with this method.

Despite the name and description, it will actually update any changed fields on the model rather than just the desired attribute.

def update_attribute(name, value)
  send(name.to_s + '=', value)
  save(false)
end

See? Use update_all and pass in the model ID as a condition, instead.

Used to get current Rails environment

Rails#env returns a string representing the current Rails environment.

Code example

>> Rails.env # in development mode
Rails.env
=> "development"