vendor/rails/activerecord/lib/active_record/query_cache.rb

   1 module ActiveRecord
   2   class QueryCache
   3     module ClassMethods
   4       # Enable the query cache within the block if Active Record is configured.
   5       def cache(&block)
   6         if ActiveRecord::Base.configurations.blank?
   7           yield
   8         else
   9           connection.cache(&block)
  10         end
  11       end
  12
  13       # Disable the query cache within the block if Active Record is configured.
  14       def uncached(&block)
  15         if ActiveRecord::Base.configurations.blank?
  16           yield
  17         else
  18           connection.uncached(&block)
  19         end
  20       end
  21     end
  22
  23     def initialize(app)
  24       @app = app
  25     end
  26
  27     def call(env)
  28       ActiveRecord::Base.cache do
  29         @app.call(env)
  30       end
  31     end
  32   end
  33 end