Class: Ddr::Derivatives::MultiresImage

Inherits:
Derivative
  • Object
show all
Defined in:
lib/ddr/derivatives/multires_image.rb

Instance Attribute Summary

Attributes inherited from Derivative

#generator, #workdir

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Derivative

#generate!, #initialize

Constructor Details

This class inherits a constructor from Ddr::Derivatives::Derivative

Class Method Details

.generatable?(object) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ddr/derivatives/multires_image.rb', line 4

def self.generatable?(object)
  object.can_have_multires_image? &&
      object.has_content? &&
      (object.content_type == "image/tiff" || object.content_type == "image/jpeg")
end

.has_derivative?(object) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ddr/derivatives/multires_image.rb', line 10

def self.has_derivative?(object)
  object.has_multires_image?
end

Instance Method Details

#delete!(object) ⇒ Object 



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# File 'lib/ddr/derivatives/multires_image.rb', line 14

def delete!(object)
  object.multires_image_file_path = nil
  object.save
end