helper

gistfile1.rb

    def mmagick_container(model, relation, media_types = {upload: true, reference: false}, options = {})
      data    = data_attributes(model, relation, options)
      id      = "#{model.class.to_s.downcase}-#{relation.to_s}"
      classes = "mmagick-wrapper #{relation.to_s}"
      
      content_tag 'div', id: id, class: classes, data: data do
        if block_given?
          yield
        else
          render '/wrapper_content', partial_attributes(model, relation, media_types, options)
        end
      end
    end