ruby-on-rails - rails : One-to-many association fails due to foreign key validation

Question

我已经在 rails 中设置了一对多关联，但是由于外键设置不正确，我的测试一直失败。我想知道是否有人有任何建议。

我有两个模型 - rota 和 user。我想要一个由用户“创建”的轮播。一个用户可以创建多个轮播。

测试失败

*在rota_spec中:*

it {should belong_to :creator}
Expected Rota to have a belongs_to association called creator (Rota does not have a creator_id foreign key.)

*在用户规范中:*

it {should have_many :created_rotas}
Expected User to have a has_many association called created_rotas (Rota does not have a creator_id foreign key.)

Rota.rb

  belongs_to :creator, :class_name => "User"

用户.rb

  has_many :created_rotas, :class_name => "Rota", :foreign_key => "creator_id"

迁移

class AddCreatorToRotas < ActiveRecord::Migration
  def change
    add_column :rotas, :creator_id, :string
  end
end

Answer 1

你必须跑

rake db:test:prepare