ruby-on-rails – 调用rake任务时无法加载命名空间模型

2019年7月20日 153次阅读

我有一个rake任务调用其他rake任务,所以我的开发数据可以很容易地重置.

第一个rake任务(lib / tasks / populate.rake)

# Rake task to populate development database with test data
# Run it with "rake db:populate"
namespace :db do
  desc 'Erase and fill database'
  task populate: :environment do
    ...
    Rake::Task['test_data:create_company_plans'].invoke
    Rake::Task['test_data:create_companies'].invoke
    Rake::Task['test_data:create_users'].invoke
   ...
  end
end

第二个rake任务(lib / tasks / populate_sub_scripts / create_company_plans.rake)

namespace :test_data do
  desc 'Create Company Plans'
  task create_company_plans: :environment do
    Company::ProfilePlan.create!(name: 'Basic', trial_period_days: 30, price_monthly_cents: 4000)
    Company::ProfilePlan.create!(name: 'Professional', trial_period_days: 30, price_monthly_cents: 27_500)
    Company::ProfilePlan.create!(name: 'Enterprise', trial_period_days: 30, price_monthly_cents: 78_500)
  end
end

当我运行bin / rake db：populate然后我得到这个错误

rake aborted! LoadError: Unable to autoload constant
Company::ProfilePlan, expected
/home/…/app/models/company/profile_plan.rb to define it

但是当我独立运行第二个rake任务时,它运行良好.

模型(路径：/home/…/app/models/company/profile_plan.rb)

class Company::ProfilePlan < ActiveRecord::Base
  # == Constants ============================================================

  # == Attributes ===========================================================

  # == Extensions ===========================================================
  monetize :price_monthly_cents

  # == Relationships ========================================================
  has_many :profile_subscriptions

  # == Validations ==========================================================

  # == Scopes ===============================================================

  # == Callbacks ============================================================

  # == Class Methods ========================================================

  # == Instance Methods =====================================================
end

Rails 5.0.1
Ruby 2.4.0

该应用程序刚刚从4.2升级到5

它在我需要整个路径时起作用：

require "#{Rails.root}/app/models/company/profile_plan.rb"

但这对我来说似乎很奇怪,因为在错误消息中,rails具有到Model的正确路径.有人知道为什么我从另一个rake任务调用时需要该文件吗？

非常感谢你

最佳答案 好吧,看起来rake并不急于加载,所以当你单独调用create_company_plans.rake它会加载引用的对象,但是当你从另一个rake调用它时,它不知道你需要它们所以它们不是加载.

您可以看一下与您类似的其他QA.

我想也许你不需要整条路径,只需：

require 'models/company/profile_plan'
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