Cheat sheet for setting Rails attributes (from http://www.davidverhasselt.com/set-attributes-in-activerecord/)

setting_rails_attributes.md

Method	Saves to DB	Default Accessor	Validations	Callbacks	Touches updated_at	Readonly check
attribute=	❌	✅
write_attribute	❌	❌
update_attribute	✅	✅	❌	✅	✅	✅
attributes=	❌	✅
update	✅	✅	✅	✅	✅	✅
update_column	✅	❌	❌	❌	❌	✅
update_columns	✅	❌	❌	❌	❌	✅
::update	✅	✅	✅	✅	✅	✅
::update_all	✅	❌	❌	❌	❌	❌