Question

我正在使用faker来生成样本数据。我有以下内容：

require 'faker'

namespace :db do 
  desc "Fill database with sample data" 
  task :populate => :environment do
    Rake::Task['db:reset'].invoke 
    User.create!(:name => "rails",
    :email => "example@railstutorial.org", 
    :password => "foobar", 
    :password_confirmation => "foobar")

    99.times do |n| 
      #name = Faker::Name.name
      name = "rails#{n+1}"
      email = "example-#{n+1}@railstutorial.org" 
      password = "password" 
      user = User.create!(:name => name,
      :email => email, 
      :password => password, 
      :password_confirmation => password)

    end 
  end
end

问题是我有几个在创建用户时没有被调用的after_save回调。这是为什么？感谢

方法：

  after_save :create_profile
def create_profile
    self.build_profile()
  end

Answer 1

在我的所有阅读中，似乎save!绕过了您定义的所有自定义before_save，on_save或after_save过滤器。 create!的源代码显示它调用了save!。除非你绝对需要爆炸版，你为什么要使用它？尝试删除所有爆炸方法，只需调用非爆炸版本：

[1..100].each do |n| 
  name = "rails#{n+1}"
  email = "example-#{n+1}@railstutorial.org" 
  password = "password" 
  user = User.new(:name => name, :email => email, :password => password, :password_confirmation => password)

  if !user.save
    puts "There was an error while making #{user.inspect}"
  end
end

Rails 3：生成假数据以填充DB

1 个答案: