ActsAsKv is a key-value simulate under relational db
Example
Suppose your model name is KvDB
You can do:
KvDb.set(:key_a, { :a => 1})
KvDb.get(:key_a) # { :a => 1}
KvDb.drop(:key_a) #
Copyright (c) 2010 [rociiu.yu@gmail.com, yanguango@gmail.com], released under the MIT license