Class: ActiveStorageValidations::Analyzer::ImageAnalyzer

Inherits:
ActiveStorageValidations::Analyzer show all
Defined in:
lib/active_storage_validations/analyzer/image_analyzer.rb

Overview

Active Storage Image Analyzer

This is an abstract base class for image analyzers, which extract width and height from an image attachable.

If the image contains EXIF data indicating its angle is 90 or 270 degrees, its width and height are swapped for convenience.

Example:

ActiveStorage::Analyzer::ImageAnalyzer::ImageMagick.new(attachable).metadata
# => { width: 4104, height: 2736 }

Direct Known Subclasses

ImageMagick, Vips

Defined Under Namespace

Classes: ImageMagick, Vips

Instance Attribute Summary

Attributes inherited from ActiveStorageValidations::Analyzer

#attachable

Instance Method Summary collapse

Methods inherited from ActiveStorageValidations::Analyzer

#initialize

Methods included from ActiveStorageValidations::ASVLoggable

#logger

Constructor Details

This class inherits a constructor from ActiveStorageValidations::Analyzer

Instance Method Details

#metadata ⇒ Object 



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# File 'lib/active_storage_validations/analyzer/image_analyzer.rb', line 15

def metadata
  read_image do |image|
    if rotated_image?(image)
      { width: image.height, height: image.width }
    else
      { width: image.width, height: image.height }
    end
  end
end