Ruby on Rails

This particular point is not well documented.

The best thing to do is to read the source and experiment: https://github.com/rails/rails/blob/52fddcc653458456f98b3683dffd781cf00b35fe/actionview/lib/action_view/helpers/tag_helper.rb

I conclude that:

- boolean attributes must receive true or false and work as expected
- the only keys that treat hashes magically are are `data` and `aria`, others just return `inspect` on the Hash which is not what we want
- Array values are space joined
- anything else just generates a a="b" attribute after string conversions

Then as you noticed, helpers may add more keys which are treated specially. Those are well documented on a per-helper basis.

On Wednesday, October 6, 2010 4:54:42 PM UTC+2, Ruby-Forum.com User wrote:

I've noticed lots of people online complain about not good documentation
for Rails. I'm a PHP programmer but I'm a newbie on Rails.

I'm creating a form with a drop-down menu. I finally got to do it. I
noticed there is a html_options parameter for select. I was curious as
to what other html_options are available but couldn't find a list of
options. I have been looking for it at the api
http://api.rubyonrails.org but can't seem to find it. Maybe I'm not
looking in the right places.

Can somebody please point me to a place in a documentation where I can
find a complete list for the different options for html_options
parameter?
--
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