Ruby on rails Rails获取在控制器中创建的新记录的id

我有工作计划，有很多工作任务。这些类似于模板。我想从中创建工作顺序和任务

这是jobplans控制器中的代码：

def copy_to_workorder
  @jobplan = Jobplan.find(params[:id]) # find original jobplan
  wo_attrs =  @jobplan.attributes
  wo_attrs.delete('woschedule_id')
  Workorder.create(wo_attrs)

  @jobplan.jobtasks.each do |jobtask|
    jobtask_attrs = jobtask.attributes
    jobtask_attrs.delete('jobplan_id')
    jobtask_attrs.merge!({ workorder_id: @workorder.id })
    Task.create(jobtask_attrs)
  end

  redirect_to @jobplan, notice: 'Project was successfully created.'
end

我的问题是@workorder为零。我需要每项新任务都参考工作顺序。如何访问新创建的工单的id

谢谢你的帮助

这样做：

def copy_to_workorder
  @jobplan = Jobplan.find(params[:id]) # find original jobplan
  wo_attrs =  @jobplan.attributes
  wo_attrs.delete('woschedule_id')
  workorder = Workorder.create(wo_attrs)
  # ^^^^^ saving the newly created record in a local variable
  #       so we can refer to it later

  @jobplan.jobtasks.each do |jobtask|
    jobtask_attrs = jobtask.attributes
    jobtask_attrs.delete('jobplan_id')
    jobtask_attrs.merge!(workorder_id: workorder.id)
    #                                  ^^^^^^ now fetch its id
    Task.create(jobtask_attrs)
  end

  redirect_to @jobplan, notice: 'Project was successfully created.'
end

这样做：

def copy_to_workorder
  @jobplan = Jobplan.find(params[:id]) # find original jobplan
  wo_attrs =  @jobplan.attributes
  wo_attrs.delete('woschedule_id')
  workorder = Workorder.create(wo_attrs)
  # ^^^^^ saving the newly created record in a local variable
  #       so we can refer to it later

  @jobplan.jobtasks.each do |jobtask|
    jobtask_attrs = jobtask.attributes
    jobtask_attrs.delete('jobplan_id')
    jobtask_attrs.merge!(workorder_id: workorder.id)
    #                                  ^^^^^^ now fetch its id
    Task.create(jobtask_attrs)
  end

  redirect_to @jobplan, notice: 'Project was successfully created.'
end

---

您从未实例化@workorder，也不需要实例变量。只要改变一下：

 Workorder.create(wo_attrs)

到

然后

jobtask_attrs.merge!({ workorder_id: workorder.id })

---

GL&HF

您永远不会实例化@workorder，也不需要实例变量。只要改变一下：

 Workorder.create(wo_attrs)

到

然后

jobtask_attrs.merge!({ workorder_id: workorder.id })

---

GL&HF

哇，你赢了我@Agis.哇，你赢了我@Agis.谢谢你的回答！谢谢你的回答！