考虑本守则
class User < ActiveRecord::Base
has_many :views
has_many :posts, :through => :views, :uniq => true
has_many :favorites
has_many :posts, :through => :favorites, :uniq => true
has_many :votes
has_many :posts, :through => :votes, :uniq => true
end
# controller code
user = User.find(3)
posts = user.posts # ??
也就是说,通过
你们可以给每个协会一个不同的名称,但用“阶级-名称”选择将其放在同一个模式上。 与此类似:
class User < ActiveRecord::Base
has_many :views
has_many :view_posts, :through => :views, :class_name => Post , :uniq => true,
has_many :favorites
has_many :favorite_posts, :through => :favorites, :class_name => Post , :uniq => true
has_many :votes
has_many :vote_posts, :through => :votes, :class_name => Post , :uniq => true
end
# Then...
User.find(3).favorite_posts
你们必须向协会提供不同的名称。 第2版和第3版<代码>has_many :posts 只是凌驾于前几条。 你们需要的是<代码>has_many :view_posts、has_many :favorite_posts等。
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