NameError與has_many_through表

Question

class User < ActiveRecord::Base 
    has_many :ties, dependent: :destroy 
    has_many :albums, through: :ties 
end 

class Album < ActiveRecord::Base 
    has_many :ties, dependent: :destroy 
    has_many :users, through: :ties 
end 

class Tie < ActiveRecord::Base 
    belongs_to :user 
    belongs_to :album, dependent: :destroy 
end 

ķ......所以，當試圖創建相冊，從AlbumsController＃創建行動：

def create 
    @album = current_user.albums.build(params[:album]) #error is on this line 
    if @album.save 
    flash[:success] = "#{@album.description} created!" 
    redirect_to @album 
    else 
    flash[:error] = 'Looks like something was invalid with that album. Try again.' 
    redirect_to albums_path 
    end 
end 

我越來越uninitialized constant User::Ty。我認爲鐵軌Tie與Ty混淆。任何想法？我可以強制從en.yml某些名字？

Answer 1

這的確是因爲Rails試圖單數化ties來派生類名。最好的解決辦法是爲此定義一個新的變形規則。在Rails 4，你這樣做：

ActiveSupport::Inflector.inflections(:en) do |inflect| 
    inflect.singular /^ties$/i, 'tie' 
end 

但在Rails 3中你可以這樣做：

ActiveSupport::Inflector.inflections do |inflect| 
    inflect.singular /^ties$/i, 'tie' 
end