Add display of currently cached values

app/logical/scraper/base.rb

@@ -49,6 +49,9 @@ def fetch_api_identifier
     def self.cache(method_name, expires_in)
       raise ArgumentError, "#{method_name} must have arity == 0" unless instance_method(method_name).arity == 0
 
+      @_cached_methods ||= []
+      @_cached_methods << method_name
+
       alias_method "#{method_name}_old", method_name
       define_method(method_name) do
         key = self.class.cache_key(method_name)
@@ -69,6 +72,10 @@ def self.cache_key(method_name)
       "#{name}.#{method_name}/#{config_checksum}"
     end
 
+    def self.cached_methods
+      @_cached_methods || []
+    end
+
     protected
 
     def end_reached

app/logical/sites/manual_definition.rb

@@ -14,6 +14,10 @@ def missing_config_keys
       []
     end
 
+    def cached_values
+      {}
+    end
+
     def manually_disabled?
       false
     end

app/logical/sites/scraper_definition.rb

@@ -23,6 +23,15 @@ def missing_config_keys
       @scraper.required_config_keys.select { |key| Config.send(key).blank? }
     end
 
+    def cached_values
+      @scraper.cached_methods.filter_map do |method|
+        key = @scraper.cache_key(method)
+        next unless Rails.cache.exist?(key)
+
+        [method, Rails.cache.fetch(key)]
+      end.to_h
+    end
+
     def manually_disabled?
       Config.send("#{enum_value}_disabled?")
     end

app/views/stats/index.html.erb

@@ -8,6 +8,7 @@
       <th>Submission Count</th>
       <th>File Count</th>
       <th>Status</th>
+      <th>Cache</th>
     </tr>
   </thead>
   <tbody>
@@ -27,6 +28,15 @@
             Enabled
           <% end %>
         </td>
+        <td>
+          <% cached = definition.cached_values %>
+          <% if cached.any? %>
+            <details>
+              <summary><%= cached.size %> <%= "value".pluralize(cached.size) %></summary>
+              <pre><%= cached.to_json %></pre>
+            </details>
+          <% end %>
+        </td>
       </tr>
     <% end %>
   </tbody>