lifo/docrails — comment on commit 593a09d3b9aea53be5e56006c1be140091674db7
File:  line 0
By vijaydev:

I've made some [changes](https://github.com/lifo/docrails/commit/547e695551e223e4d92762d3c176187e6780e524) and moved this to a later section. It's also merged into rails and can be seen [here](http://edgeguides.rubyonrails.org/active_record_validations_callbacks.html#strict-validations). Thanks!