I m 在一项注册令引起怀疑期间通过账户记录保存一个无效用户记录。 我有办法让我有条件地ski弄某些用户特性。 当我通过协会检查数据的有效性时,如果我自己检查数据的有效性,就会发现数据无效。
注
$ account = Account.new
$ account.users.new(:email => nil)
$ account.save
=> true
$ account.users.last.valid?
=> true
$ User.last == account.users.last
=> true
$ User.last.valid?
=> false
任何想法?
他们没有做同样的事,因为有人正在使用记忆,而另一个人正在使用数据库。
account.users.last.valid?
从账面上看,用户协会(记忆)获得最后一项内容,如果有效,即进行检查。
User.last == account.users.last
相比之下,数据库中最后用户的主要(:id field)和最后用户的核算。 如果主要钥匙相同,用户协会(记忆)和回报真实。
User.last.valid?
如果数据库中最后用户有效,则进行检查。
如下:
account.users(true).last.valid?
真正的论点将用户协会从数据库中转载。
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