Quickly adding some simple client-side caching for images. [concerto#121

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wtg · Nov 24, 2010 · 2089fb6 · 2089fb6
1 parent d26f1d8
commit 2089fb6
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/app/controllers/contents_controller.rb b/app/controllers/contents_controller.rb
@@ -131,8 +131,10 @@ def destroy
   # along for processing.  Should send an inline result of the processing.
   def display
     @content = Content.find(params[:id])
-    @file = @content.render(params)
-    send_data @file.file_data, :filename => @file.file_name, :type => @file.file_type, :disposition => 'inline'
+    if stale?(:etag => params, :last_modified => @content.updated_at.utc, :public => true)
+      @file = @content.render(params)
+      send_data @file.file_data, :filename => @file.file_name, :type => @file.file_type, :disposition => 'inline'
+    end
   end
 
 end