virtus

https://github.com/solnic/virtus

Ruby

Attributes on Steroids for Plain Old Ruby Objects

Virtus::Attribute::DefaultValue::FromSymbol#call

Evaluates the value via instance#public_send(value)

Symbol value is returned if the instance doesn't respond to value

Source | Google | Stack overflow

Edit

git clone [email protected]:solnic/virtus.git
cd virtus
open lib/virtus/attribute/default_value/from_symbol.rb

Contribute

# Make a new branch
git checkout -b -your-name--update-docs-Virtus--Attribute--DefaultValue--FromSymbol-call-for-pr

# Commit to git
git add lib/virtus/attribute/default_value/from_symbol.rbgit commit -m "better docs for Virtus::Attribute::DefaultValue::FromSymbol#call"

# Open pull request
gem install hub # on a mac you can `brew install hub`
hub fork
git push <your name> -your-name--update-docs-Virtus--Attribute--DefaultValue--FromSymbol-call-for-pr
hub pull-request

# Celebrate!