我正在寻找遵循指示的外键约束的种子数据。
我收到消息“nil:NilClass 的未定义方法‘创建’”
我的命令:
rails g model user login:string password:string
rails g model account gender:string age:integer first_name:string last_name:string user:references
种子.rb
User.delete_all
Account.delete_all
尝试 1 播种关联表
@Jared = User.create [{login: "Jared", password: "password2"}]
@Jared.first.account.create([{gender: "male", age: 99, first_name: "Irish", last_name: "Coder"}])
尝试 2 播种关联表
acct = Account.create [{gender: "male", age: 99, first_name: "Irish", last_name: "Coder"}]
@Jared.account = acct
用户.rb
class User < ActiveRecord::Base
has_one :account
end
帐号.rb
class Account < ActiveRecord::Base
belongs_to :user
end