devise_invitable 1.7.0
It adds support for send invitations by email (it requires to be authenticated) and accept the invitation by setting a password.
Gemfile:
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installation:
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Dépendances de Runtime (2):
actionmailer
>= 4.0.0
devise
>= 4.0.0
Dépendances de Development (1):
bundler
>= 1.1.0