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我有一个用改革构建的表单对象,我想使用来自表单的两个值填充一个属性,它们不包含在模型中。

我的表格:

  div.form-item.form-item--near
    = f.input :employment_contract_type, collection: @presenter.employment_contract_codes_collection
    = f.input :employment_contract_time, collection: ["Partial", "Complete"], as: :radio_buttons

我的表单对象:

  class FinancingRequestForm < Reform::Form
    property :employment_contract_code
    property :employment_contract_time, virtual: true
    property :employment_contract_type, virtual: true
  end

该模型:

# Table name: purchase_financing_customers
#
#  id                       :integer          not null, primary key
#  employment_contract_code :string

module Purchase
  class FinancingCustomer < ApplicationRecord
  end
end

我想要这样的东西:

  class FinancingRequestForm < Reform::Form
    ContractCodePopulator = lambda do |_|
      time = employment_contract_type == "Complete" ? "C" : "P"
      self.employment_contract_code  = "#{send("employment_contract_type")}#{time}"
    end

    property :employment_contract_code, populator: ContractCodePopulator
    property :employment_contract_time, virtual: true
    property :employment_contract_type, virtual: true
  end

但问题是当我运行 form.validate(request_params) 时 de Populator 不会触发。

我只想要由其他两个虚拟值组成的就业合同代码。

谢谢!

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