Module: Hydra::Works::Derivatives

Extended by:
ActiveSupport::Concern
Includes:
Derivatives
Defined in:
lib/hydra/works/models/concerns/file_set/derivatives.rb

Instance Method Summary collapse

Instance Method Details

#create_derivatives ⇒ Object

Note, these derivatives are being fetched from Fedora, so there may be more network traffic than necessary. If you want to avoid this, set up a source_file_service that fetches the files locally, as is done in CurationConcerns.



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# File 'lib/hydra/works/models/concerns/file_set/derivatives.rb', line 14

def create_derivatives
  case original_file.mime_type
  when *self.class.pdf_mime_types
    Hydra::Derivatives::PdfDerivatives.create(self, source: :original_file, outputs: [{ label: :thumbnail, format: 'jpg', size: '338x493', object: self }])
  when *self.class.office_document_mime_types
    Hydra::Derivatives::DocumentDerivatives.create(self, source: :original_file, outputs: [{ label: :thumbnail, format: 'jpg', size: '200x150>', object: self }])
  when *self.class.video_mime_types
    Hydra::Derivatives::VideoDerivatives.create(self, source: :original_file, outputs: [{ label: :thumbnail, format: 'jpg', object: self }])
  when *self.class.image_mime_types
    Hydra::Derivatives::ImageDerivatives.create(self, source: :original_file, outputs: [{ label: :thumbnail, format: 'jpg', size: '200x150>', object: self }])
  end
end