The document discusses Rails model validations which ensure only valid objects are persisted to the database. It describes different validation methods like presence, length, numericality, and uniqueness that can be applied to model attributes. These validations are triggered during create, save, update, and update_attributes and allow specifying validation criteria like minimum or maximum length, numeric comparisons, and unique values within a scoped context.
6. Go Azure
• Windows Azure 2012 Spring Releaseの
日本語でのフォロー
• 1日目はMS社員、2日目はコミュニティーセッショ
ン
http://channel9.msdn.com/Events/Windows-Azure-DevCamps/Go-Azure-2012