task.rb in paperdragon-0.0.9

- old
+ new

@@ -1,7 +1,10 @@
 module Paperdragon
   # Gives a simple API for processing multiple versions of a single attachment.
+  #
+  # Each processing method will return the updated metadata hash. You still have
+  # to save that hash back to the model.
   class Task
     def initialize(attachment, upload=nil)
       @attachment = attachment
       @upload     = upload
       @metadata   = attachment.metadata.dup # DISCUSS: keep this dependency?
@@ -38,9 +41,20 @@
     def rename!(style, fingerprint, &block)
       version = file(style)
       new_uid = @attachment.rebuild_uid(version, fingerprint)
 
       @metadata.merge!(style => version.rename!(new_uid, &block))
+    end
+
+    def delete!(*styles)
+      styles = @attachment.metadata.keys if styles.size == 0
+
+      styles.each do |style|
+        file(style).delete!
+        @metadata.delete(style)
+      end
+
+      @metadata
     end
 
   private
     def file(style, upload=nil)
       @attachment[style, upload]
\ No newline at end of file