Question

创建具有地址的新用户时遇到问题。我在用户和地址表中创建记录，但在用户中寻址的外键仍为零。

class User < ActiveRecord::Base
  belongs_to :address
  accepts_nested_attributes_for :address
end

class Address < ActiveRecord::Base
  has_one :user
end

def new
    @user = User.new
    @user.build_address
  end

  def create
    @user = User.new(user_params)
    if @user.save
      flash[:notice] = "Your account has been created."
      redirect_to signup_url
    else
      flash[:notice] = "There was a problem creating you."
      render :action => :new
    end
  end

private
  def user_params
    params.require(:user).permit(
      :first_name, 
      :last_name, 
      :email, 
      :password, 
      :password_confirmation,
      address_attributes: [:id, :city]
    )
  end
end

谢谢。

Answer 1

你混淆了关系类型。试试这个：

class User < ActiveRecord::Base
  has_one :address
end

class Address < ActiveRecord::Base
  belongs_to :user
end

此外，您的代码结构有趣，两个模型，然后是其背景下的一些方法。我希望这只是一个错误的印刷品。如果没有，请将除Address模型之外的所有内容放入User模型中。

关系建立后，外键仍为零

1 个答案: