Merge pull request #380 from IU-Libraries-Joint-Development/essi-1552…

…_cache_holding_loc

Cache data from holding location service

app/services/holding_location_service.rb

@@ -7,10 +7,15 @@ def self.select_options
   end
 
   def self.select_all_options
-    authority.all.map { |element| [element[:label], element[:code]] }
+    results = Rails.cache.fetch('HoldLoc-v1-_ALL_', expires_in: 1.hour, race_condition_ttl: 1.hour) do
+      authority.all
+    end
+    results.map { |element| [element[:label], element[:code]] }
   end
 
   def self.find(id)
-    authority.find(id)
+    Rails.cache.fetch("HoldLoc-v1-#{id}", expires_in: 1.hour, race_condition_ttl: 1.hour) do
+      authority.find(id)
+    end
   end
 end