DataMapper ã§ã® Associations ã« Hook ã‚’ã‹ã‚‰ã¾ã›ã‚‹ - daily dayflowerDataMapper ã§ã® One-To-Many-Through - daily dayflower ã®ç¶šã。 下記ã¯ã‚ãã¾ã§èª¬æ˜Žã®ãŸã‚ã®ã‚µãƒ³ãƒ—ル((ã¾ã˜ã‚ã«ã‚¢ãƒ—リã¨ã—ã¦ã‚¤ãƒ³ãƒ—リメントã™ã‚‹ãªã‚‰ï¼Œå˜ã« User ã‚„ Mail モデルã«å‰Šé™¤ãƒ•ãƒ©ã‚°ï¼ˆã¨ã„ã†ã‹ available フィールド？）を用æ„ã—ã¦ãã“ã‚’æ“作ã™ã‚‹ã ã‘ã«ã™ã‚‹ã¨æ€ã†ã€‚))。 å˜ç´”㪠One-To-Many (belongs_to 㨠has n) ã®å ´åˆ require 'rubygems' require 'dm-core' require 'dm-aggregates' # Collection ã® count() ç‰ã‚’ã‚ã¨ã§ä½¿ã†ãŸã‚ ### モデルã®å®šç¾© class User include DataMapper::Resource property :id, Serial property :name, String
DataMapper ã§ã® One-To-Many-Through - daily dayflower
{{#tags}}- {{label}}
{{/tags}}