# Born\_at(1i) ?!?

**URL:** <https://www.ruby-forum.com/t/born-at-1i/168328>\
**Category:** IT\
**Created:** [May 19, 2009, 5:40pm UTC](https://www.ruby-forum.com/t/born-at-1i/168328 "2009-05-19T17:40:10Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![spitfire](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/a5b964/32.png) [@spitfire](https://www.ruby-forum.com/u/spitfire)\
**Post date:** [May 19, 2009, 5:40pm UTC](https://www.ruby-forum.com/t/born-at-1i/168328/1 "2009-05-19T17:40:10Z")

</div>

When I use scaffold,  
if I have a datetime field in the model, in the view there is some combo  
to set the date and time.

The HTML source has the combos with the names  
name=“user[born\_at(1i)]”  
name=“user[born\_at(2i)]”  
name=“user[born\_at(3i)]”  
…

someone can explain how work "born\_at(?i) " ? or suggest some page page  
who explain than

thank you,  
Alessandro

---

<div class="post-metadata">

**Author:** ![spitfire](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/a5b964/32.png) [@spitfire](https://www.ruby-forum.com/u/spitfire)\
**Post date:** [May 19, 2009, 7:44pm UTC](https://www.ruby-forum.com/t/born-at-1i/168328/2 "2009-05-19T19:44:31Z")

</div>

It’s one of (IMHO) the most hidden rails feature 😃  
You can find the method (and some info) by looking directly in the rails  
source file (  
[rails/activerecord/lib/active\_record/base.rb at ee5520a0a5ea83843ce88f6b9550e3c36b8cdd49 · rails/rails · GitHub](http://github.com/rails/rails/blob/ee5520a0a5ea83843ce88f6b9550e3c36b8cdd49/activerecord/lib/active_record/base.rb#L3029))

Sandro

---

<div class="post-metadata">

**Author:** ![spitfire](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/a5b964/32.png) [@spitfire](https://www.ruby-forum.com/u/spitfire)\
**Post date:** [May 20, 2009, 5:43pm UTC](https://www.ruby-forum.com/t/born-at-1i/168328/3 "2009-05-20T17:43:13Z")

</div>

You’re right ! ruby code is the best documentation 😃

Thank you,  
Alessandro

Sandro P. wrote:

> It’s one of (IMHO) the most hidden rails feature 😃  
> You can find the method (and some info) by looking directly in the rails  
> source file (  
> [rails/activerecord/lib/active\_record/base.rb at ee5520a0a5ea83843ce88f6b9550e3c36b8cdd49 · rails/rails · GitHub](http://github.com/rails/rails/blob/ee5520a0a5ea83843ce88f6b9550e3c36b8cdd49/activerecord/lib/active_record/base.rb#L3029))
> 
> Sandro