carrierwave

https://github.com/carrierwaveuploader/carrierwave

Ruby

Classier solution for file uploads for Rails, Sinatra and other Ruby web frameworks

Mail::Utilities#underscoreize

Swaps out all hyphens (-) for underscores (_) good for stringing to symbols
a field name.

Example:

 string = :resent_from_field
 underscoreize ( string ) #=> 'resent_from_field'

Source | Google | Stack overflow

Edit

git clone [email protected]:carrierwaveuploader/carrierwave.git

cd carrierwave

open

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Mail--Utilities-underscoreize-for-pr

# Commit to git

git add git commit -m "better docs for Mail::Utilities#underscoreize"

# Open pull request

gem install hub # on a mac you can `brew install hub`

hub fork

git push <your name> -your-name--update-docs-Mail--Utilities-underscoreize-for-pr

hub pull-request

# Celebrate!