app/views/user_mailer/stale_shift.text.erb
Hello <%= @user.name %>,
The following shift has not been updated in the past hour:
Location: <%= @stale_shift.location.name %>
Date: <%= @stale_shift.start.to_s(:just_date) %>
Time: <%= @stale_shift.start.to_s(:am_pm) %>
Please update your shift report or sign out if you had forgotten to do so at the end of your shift.