rails rake 任务是否提供对 ActiveRecord 模型的访问? [英] Do rails rake tasks provide access to ActiveRecord models?

问题描述

我正在尝试创建自定义 rake 任务，但我似乎无权访问我的模型.我认为这是 rails 任务中隐含的内容.

I am trying to create a custom rake task, but it seems I dont have access to my models. I thought this was something implicitly included with rails task.

我在 lib/tasks/test.rake 中有以下代码:

I have the following code in lib/tasks/test.rake:

namespace :test do
  task :new_task do
    puts Parent.all.inspect
  end
end

这是我的父模型的样子:

And here is what my parent model looks like:

class Parent < ActiveRecord::Base
  has_many :children
end

这是一个非常简单的示例，但我收到以下错误:

It's a pretty simple example, but I get the following error:

/> rake test:new_task
(in /Users/arash/Documents/dev/soft_deletes)
rake aborted!
uninitialized constant Parent

(See full trace by running task with --trace)

有什么想法吗?谢谢

推荐答案

想通了，任务应该是这样的:

Figured it out, the task should look like:

namespace :test do
  task :new_task => :environment do
    puts Parent.all.inspect
  end
end

注意 =>:environment 依赖添加到任务中

Notice the => :environment dependency added to the task

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