Method update_all

* Updates records using set in $options * * Does not instantiate models and therefore does not invoke callbacks * * Update all using a hash: * * * YourModel::update_all(array('set' => array('name' => "Bob"))); * * * Update all using a string: * * * YourModel::update_all(array('set' => 'name = "Bob"')); * * * An options array takes the f

($options=array())