uppercase convert_symbols_to formula

[cdinger]

Thanks, @rubiii for writing and maintaining Savon! It's the first SOAP tool that I've actually been able to use in a complex Oralce/PeopleSoft environment.

This change would dramatically clean up our code; all of the Oracle web services we use have uppercase keys. Right now, it's a pain because we have to convert ActiveRecord attributes to uppercase strings.

Please consider.... Thanks!

[rubiii]

looks good. i'll try to merge and release later today.

[cdinger]

@rubiii, I just realized that the README mentions the ability to define your own symbol conversion formula—it even uses upcase as an example:

Gyoku.convert_symbols_to { |key| key.upcase }
Gyoku.xml(:upcase => "key")
# => "<UPCASE>key</UPCASE>"

I hadn't realized this when I submitted this pull request! This feature probably isn't necessary. If you do want to merge, I can update the README with a less confusing custom formula example... Let me know.

Thanks again!

[rubiii]

yeah :) sorry, i should have mentioned that. but upcase seems to be a legitimate formula to support.
don't know if i need to release something today, now that you found this feature, but i'll include it in the next release.

[cdinger]

Perfect. I updated the commit with a README change for when you do release. Thanks!

[rubiii]

thank you very much!