To add to that, here is the scale_image_tag helper method:
def scale_image_tag(picture, options = {})
if picture
# raise options.to_yaml
image_tag(picture.url(options[:width], options[:height]),
options.merge({:alt => picture.image_alt, :title => picture.image_alt}))
else
image_tag("clear.gif", options)
end
end
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