validates_overlap 1.0.0
It can be useful when you you are developing some app where you will work with meetings, events etc.
Gemfile:
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インストール:
=
Runtime依存関係 (1):
rails
>= 6.0.0
Development依存関係 (8):
bundler
>= 0
database_cleaner
>= 0
factory_girl_rails
>= 0
pry
>= 0
rb-readline
>= 0
rspec-rails
>= 0
rubocop
>= 0
sqlite3
>= 0