Class: Paperclip::MetadataExtractor

Inherits:
Processor
  • Object
show all
Defined in:
lib/paperclip_processors/metadata_extractor.rb

Instance Method Summary collapse

Instance Method Details

#make ⇒ Object 



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# File 'lib/paperclip_processors/metadata_extractor.rb', line 16

def make
  # get the metadata from Yamdi
  metadata = Yamdi.new(file.path)
  
  # add values to the attachment instance (for db persistence, etc)
  # assumes duration is a column in the table this attachment is being
  # added to.
  
  # a simple assignment works if you are not background processing your 
  # paperclip processing
  attachment.instance.duration = metadata.duration

  # if you are background processing your paperclip processing which is 
  # common when working with videos you'll want to ensure the instance gets
  # saved at some point in the processor chain, use:
  # attachment.instance.update_attribute(:duration, metadata.duration)
  
  # always return a reference to the file when done
  file
end