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铁路3 如何按方法找到_或_create_by,如何在新物体上确定更多的属性
原标题:rails 3 how to find_or_create_by method, how to set additional attributes on the new object

正在采用一种批准模式。 核准有:电子邮箱。 所以说自己。 email is calls an Object of the ratification category with its email Depende.enter Code here

def associate_correct_user
    new_user = User.find_or_create_by_email self.email do |u|
      u.invite!
end

If I am creating a user here I need to pass two other attributes (first_name and last_name). Those attributes need to be pulled from another model Email, for which self.email as already been validated against.

这是我所领导的意思:

def associate_correct_user
    new_user = User.find_or_create_by_email self.email do |u|
       user = Email.find_by_email(self.email)
       u.first_name = user.first_name
       u.last_name = user.last_name
      u.invite!
end

这为用户创造了条件,但并没有为这一新用户确定第一个名称和最后名称特征。

最佳回答

Show me the lines of your log/development.log when the user is created. May be first_name and last_name are protected attributes. Here you have an example of find_or_create_by http://api.rubyonrails.org/classes/ActiveRecord/Base.html#label-Dynamic+attribute-based+finders It uses a different syntax.

User.find_or_create_by_name( Bob , :age => 40) { |u| u.admin = true }
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