lib/pghero/methods/replica.rb in pghero-1.6.3 vs lib/pghero/methods/replica.rb in pghero-1.6.4

@@ -1,9 +1,12 @@
 module PgHero
   module Methods
     module Replica
       def replica?
-        select_all("SELECT setting FROM pg_settings WHERE name = 'hot_standby'").first["setting"] == "on"
+        unless defined?(@replica)
+          @replica = select_all("SELECT setting FROM pg_settings WHERE name = 'hot_standby'").first["setting"] == "on"
+        end
+        @replica
       end
 
       # http://www.postgresql.org/message-id/[e-mail]
       def replication_lag
         select_all(<<-SQL