Question

我有使用Devise生成的用户模型。此用户模型有两种类型（买方或卖方）使用多态关联创建。

class Buyer < ActiveRecord::Base

has_one :user, as: :owner, dependent: :destroy
accepts_nested_attributes_for :user
validates_presence_of :user
validates_associated :user


class User < ActiveRecord::Base

after_commit :transaction_success
after_rollback :transaction_failed

devise :database_authenticatable, :registerable,
        :recoverable, :rememberable, :trackable, :validatable


belongs_to :owner, polymorphic: true

validates :email, presence: true
validates :first_name, presence: true

private
  def transaction_success
    logger.info "Transfer succeed for Account #{self.to_param}"
  end

  def transaction_failed
    logger.warn "Transfer failed for Account #{self.to_param}"
  end

端当用户注册时，他从特定的注册链接（/ buyer / new或/ seller / new）执行，从控制器调用create方法：

 def create
@buyer = Buyer.new(buyer_params)
@user = User.new(user_params)
respond_to do |format|
  begin
    User.transaction do 
      @buyer.save
      @user.owner_id = @buyer.id
      @user.owner_type = "Buyer"
      @user.save
    end
  format.html { sign_in_and_redirect @user, notice: 'User was successfully created.' }
  format.json { render :show, status: :created, location: @user }
  rescue ActiveRecord::Rollback
  format.html { render :new }
  format.json { render json: @user.errors, status: :unprocessable_entity }
  end
end
end

问题在于，有时交易失败但是在没有用户的情况下保存了买方。此外，设计验证或我在用户模型中包含的任何验证都没有任何区别，允许用户在没有任何电子邮件，密码等的情况下创建。

如何修复事务并确保验证有效？

使用关联设计验证

0 个答案: