我有三个模型,全部用于has_many:through关系。他们看起来像这样:使用has_many:通过并构建
class Company < ActiveRecord::Base
has_many :company_users, dependent: :destroy
has_many :users, through: :company_users
accepts_nested_attributes_for :company_users, :users
end
class CompanyUser < ActiveRecord::Base
self.table_name = :companies_users #this is because this was originally a habtm relationship
belongs_to :company
belongs_to :user
end
class User < ActiveRecord::Base
# this is a devise model, if that matters
has_many :company_users, dependent: :destroy
has_many :companies, through: :company_users
accepts_nested_attributes_for :company_users, :companies
end
这个加载正常,并且连接为查询建立好。然而,每当我这样做
@company = Company.last
@user = @company.users.build(params[:user])
@user.save #=> true
@company.save #=> true
两个User
记录和CompanyUser
记录生成,但在CompanyUser
记录company_id
字段设置为NULL
INSERT INTO `companies_users` (`company_id`, `created_at`,`updated_at`, `user_id`)
VALUES (NULL, '2012-02-19 02:09:04', '2012-02-19 02:09:04', 18)
它当一回事你@company.users << @user
我敢肯定,我在这里做一些愚蠢的事情,我只是不知道是什么。
所以,如果你想允许某人编辑公司,让他们增加与用户的复选框我需要的user_ids阵列拉出params哈希表,并创建一个CompanyUser纪录为每一个? – 2012-02-19 04:29:52
补充上面的答案。 – 2012-02-19 04:54:01
谢谢!那是我错过的。我甚至没有考虑过制作那样的表格。称我为愚蠢。 – 2012-02-19 05:01:55