28 lines
822 B
Ruby
28 lines
822 B
Ruby
# frozen_string_literal: true
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module Paperclip
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class LazyThumbnail < Paperclip::Thumbnail
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def make
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return File.open(@file.path) unless needs_convert?
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min_side = [@current_geometry.width, @current_geometry.height].min
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options[:geometry] = "#{min_side.to_i}x#{min_side.to_i}#" if @target_geometry.square? && min_side < @target_geometry.width
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Paperclip::Thumbnail.make(file, options, attachment)
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end
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private
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def needs_convert?
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needs_different_geometry? || needs_different_format?
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end
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def needs_different_geometry?
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!@target_geometry.nil? && @current_geometry.width != @target_geometry.width && @current_geometry.height != @target_geometry.height
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end
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def needs_different_format?
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@format.present? && @current_format != @format
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end
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end
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end
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