Question

我问了之前的question，这个跟着......

我有3种型号：合同，附录和预约

Contract.rb
  has_many :addendums
  accepts_nested_attributes_for :addendums

Addendum.rb
  belongs_to :contract
  has_many :appointments

Appointment.rb
  belongs_to :addendum

创建附录时，会自动创建一些约会。我做了这项工作在Addendum's Controller这样添加了一个函数

def createNewAppointments
  appointment = Appointment.new(params[:appointment]);
  appointment.dataprovavel = @addendum.data
  appointment.addendum_id = @addendum.id
  appointment.appointment_state = AppointmentState.where(descricao:'Pendente').first
  appointment.save 
  ...
end

这个函数在这里调用

Addendum Controller
def create
  respond_to do |format|
  if @addendum.save
    format.html { redirect_to @addendum, notice: 'Addendum was successfully created.' }
    format.json { render action: 'show', status: :created, location: @addendum }
    createNewAppointments
  else
  ...
end

现在，因为我开始在合同和附录之间使用nested_attributes，所以使用build方法创建新附录，因此不调用函数createNewAppointments ...我该怎么做？

我尝试在模型after_create createNewAppointments上使用Addendum，但它不起作用。它会出现错误Uninitialized constant Contract::Addendum

Answer 1

您必须将方法从控制器移动到合同模型。模型无法访问控制器方法。

用自己取代@addendum。然后从控制器调用它：

@addendum.createNewAppointments(params[:appointment], 'pendente')

请注意，您需要将参数从控制器传递到模型以使其正常工作。

def createNewAppointments(appointment, descricao)
  appointment = Appointment.new(params[:appointment]);
  appointment.dataprovavel = self.data
  appointment.addendum_id = self.addendum.id
  appointment.appointment_state = AppointmentState.where(descricao: descricao).first
  appointment.save 
  ...
end

您的另一个选择是将方法移动到现在正在进行工作的合同控制器。只要附录控制器似乎没有交互。

做类似的事情：

@addendum = contract.build....
create_new_appointments

提示：在命名方法上使用rails约定。用户小写下划线。不要做JAVA命名。

Ruby on Rails - 嵌套属性和自动对象创建

1 个答案: