app/views/invitations/show.html.haml
.alert.alert-info.container
%strong Hello #{@invitation.email}!
You have been invited to be a speaker for the talk outlined below.
Would you like to participate?
.pull-right
= @invitation.accept_button
= @invitation.decline_button
= render template: 'proposals/show', locals: { proposal: @proposal,
event: @event , invitations: @proposal.invitations.not_accepted.decorate }