我有两个型号:(专辑和产品)
1)内部模型
在album.rb里面:
class Album < ActiveRecord::Base attr_accessible :name has_many :products end
内部product.rb:
class Product < ActiveRecord::Base attr_accessible :img,:name,:price,:quantity belongs_to :album end
2)使用“rails console”,如何设置关联(所以我可以使用“<%= Product.first.album.name%>”)?
例如
a = Album.create( :name => "My Album" ) p = Product.create( :name => "Shampoo X" ) # what's next? how can i set the album and the product together?
解决方法
你可以这样做:
a = Album.create( name: "My Album" ) p = Product.create( name: "Shampoo X" ) # OR p = Product.create( name: "Shampoo X",album_id: a.id ) # OR p.album = a # OR p.album_id = a.id # OR a.products << a # finish with a save of the object: p.save
您可能必须在Product模型上设置album_id可访问的属性(不确定).
检查@bdares的评论.