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# File 'lib/mongoid_paperclip_image_dimension.rb', line 12
def save_image_dimensions_on(*args)
args.flatten.each do |attachment_field|
attachment_field = attachment_field.to_sym
dimension_field_name = "#{attachment_field}_dimensions".to_sym
perperclip_image_dimension_fields << attachment_field
field dimension_field_name, :type => Hash
class_eval " def \#{attachment_field}_dimension(style=:original)\n \#{attachment_field}_dimensions[style.to_s].map(&:to_i)\n end\n\n def \#{attachment_field}_dimension_str(style=:original)\n \#{attachment_field}_dimension(style).join('x')\n end\n\n after_\#{attachment_field}_post_process do\n save_dimensions_for(:\"\#{attachment_field}\")\n end\n END\n\n end\nend\n"
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