无法修改rails3中的冻结哈希值

Question

我收到以下错误,

can't modify frozen Hash
/home/.rvm/gems/ruby-1.9.3-p327@ui/gems/activerecord-3.2.6/lib/active_r
ecord/attribute_methods/write.rb:38:in `[]='
/home/.rvm/gems/ruby-1.9.3-p327@ui/gems/activerecord-3.2.6/lib/active_r
ecord/attribute_methods/write.rb:38:in `write_attribute'

从这条线

write_attribute(:value, new_value)

这可以在某些日子里正常运行.但是,现在它不断出现上述错误.我尝试了解决方案,但对我没什么用.

Answer 1

如注释中所述,您无法更新已销毁对象的属性.

检查以下内容:

write_attribute(:value, new_value) unless destroyed?