扶手：在活动记录未初始化的固定误差破坏 [英] Rails : uninitialized constant error on Active Record destroy

问题描述

我有试图摧毁一个活跃的记录实例时的问题。

I am having an issue when trying to destroy an active record instance.

这涉及到以下AR

class Client < ActiveRecord::Base
    has_many :phone_numbers, :dependent => :destroy
    has_many :email_addresses, :dependent => :destroy
    has_many :user_clients , :dependent => :destroy
    has_many :users, :through => :user_clients 
end

class UserClient  < ActiveRecord::Base
belongs_to :user
belongs_to :client , :dependent => :destroy
has_many :instructions, :dependent => :destroy
end

当执行摧毁一个Client实例，我给下面的错误

When performing a destroy on a Client instance I am given the following error

@dead_man = Client.find(params[:id])
@dead_man.destroy => uninitialized constant UserClient::Instruction

我真的不知道在这个错误的来源。任何帮助是极大AP preciated！

I am really not sure where this error is coming from. Any help is greatly appreciated!

推荐答案

这不是找你的教学模式。请确保它在车型目录，适当命名，延长的ActiveRecord :: Base的等。

It's not finding your Instruction model. Make sure it's in the models directory, appropriately named, extends ActiveRecord::Base, etc.

此外，你应该删除：依赖=＆GT; ：从 belongs_to的破坏：在UserClient模型客户行，除非你真的想删除的user_client的导致删除客户端。这听起来像它应该是周围的其他方式，而这已经设立在客户端模式。

Also, you should remove the :dependent => :destroy from the belongs_to :client line in the UserClient model, unless you really want deletion of a user_client to result in deletion of the client. It sounds like it should be the other way around, and that's already set up in the Client model.

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