validates_overlap 0.8.5
It can be useful when you you are developing some app where you will work with meetings, events etc.
Gemfile:
=
install:
=
Runtime Dependencies (1):
rails
>= 3.0.0
Development Dependencies (9):
bundler
~> 1.2
database_cleaner
>= 0
factory_girl_rails
~> 4.2
pry
>= 0
rb-readline
>= 0
rspec-rails
~> 2.12
rubocop
>= 0
sqlite3
>= 0
test-unit
>= 0