Contents

module Spina
  module ImagesHelper

    # We wrap some Rails logic inside our own helper method
    # because the resolve directive in ActiveStorage's routes
    # doesn't work outside the main app in 5.2.0.rc2
    def variant(image, options)
      if image.attached? && image.variable?
        variant = image.variant(options)
        main_app.rails_blob_representation_path(variant.blob.signed_id, variant.variation.key, variant.blob.filename)
      elsif image.image?
        # Allows SVGs to be displayed as they are not variable. Requires:
        # - https://github.com/Dreamersoul/administrate-field-active_storage/issues/36#issuecomment-608446819 to be applied
        #
        # Additionally, https://github.com/hopsoft/active_storage_svg_sanitizer/
        # should be added if users are able to upload their own SVG content due to:
        # https://github.com/rails/rails/issues/34665#issuecomment-445888009
        main_app.url_for(image)
      else
        "https://placehold.it/100x100.png"
      end
    end

    def thumbnail_url(image)
      return "" if image.nil?
      variant(image.file, resize: "400x300^", crop: "400x300+0+0")
    end

  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
spina-2.0.0.alpha	app/helpers/spina/images_helper.rb