Question

我有一个名为治疗的模型，需要“请求者”和“被请求者”的存在。在治疗模型中无法访问这些属性。这是模型：

class Treating < ActiveRecord::Base
  attr_accessible :intro, :proposed_date, :proposed_location

  validates :intro, presence: true, length: { maximum: 190 }
  validates :requestor_id, presence: true
  validates :requestee_id, presence: true

    belongs_to :requestor, class_name: "User"
    belongs_to :requestee, class_name: "User"

    default_scope order: 'treatings.created_at DESC'

end

我正在尝试使用此rake文件填充测试数据库，sample_data.rake：

namespace :db do
    desc "Fill database with sample data"
    task populate: :environment do
        ...

        requestors = User.all(limit: 6)
        50.times do
            intro = Faker::Lorem.sentence(5)
            requestors.each do |requestor|
                requestee = User.find(rand(1..6))
                requestor.sent_treatings.create!(intro: intro)
            end
        end
    end
end

除非我在处理模型中使用：requestor一个可访问的属性，并在我的rake文件的'requestor.sent_treatings.create！（intro：intro）'行中跟随'intro：intro'和'requestee：requestee'，当我运行rake db时会得到一个验证错误：填充说'被请求者是空的'：

rake aborted!
Validation failed: Requestee can't be blank

Tasks: TOP => db:populate

1）[更重要]如何在我的rake文件中设置'被请求者'而不必在模型中访问它？ 2）我有一个hacky方法在'50 .times.do'循环中声明'requestee'变量：'requestee = User.find（rand（1..6））'。什么是更好的方式来声明这与我在'requestors.each do | requestor |'中声明我的'requestor'变量的方式类似？

非常感谢！

Answer 1

namespace :db do
    desc "Fill database with sample data"
    task populate: :environment do
        ...

        requestors = User.all(limit: 6)
        requestees = User.find((1..6).to_a)
        50.times do
            intro = Faker::Lorem.sentence(5)
            requestors.each do |requestor|
                requestee = requestees.sample #random array member, Ruby 1.9+
                treating = requestor.sent_treatings.build(intro: intro)
                treating.requestee = requestee
                treating.save!
            end
        end
    end
end

在db rake中设置不可访问的属性：populate

1 个答案: