<%= alert.update_type.upcase %>: <% case alert.update_type when "cleared" %><%= alert.cleared_at.to_s_relative %><% when "acknowledged" %><%= alert.acknowledged_at.to_s_relative %> by <%= alert.acknowledged_by%><% else %><%= alert.raised_at.to_s_relative %><% end %>: <%= alert.subject %>: <%= alert.summary %><% if alert.source != alert.subject %> -- from <%= alert.source %><% end %>.