Where can i read more about Rails 3.2's Data Store with key-value in textfield?

问题

Where can i read more about Rails 3.2's Data Store feature, in which there's the option to store key-value in a textfield mentioned here:

Is there a best practices/coherent way to update a database field that contains a hash key-value store?

This is a seperate question because i was not able to comment on previous question.

回答1:

Here is a nice blog post on the subject: http://rawonrails.blogspot.com/2012/02/using-activerecordstore-with-rails-32.html

来源：https://stackoverflow.com/questions/9563282/where-can-i-read-more-about-rails-3-2s-data-store-with-key-value-in-textfield