Module: Serializers::MODS

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# File 'lib/serializers/mods.rb', line 8

def self.included(base)
  base.register_serializer(:mods, 'MODS', lambda { |doc|
      xml = doc.to_mods
      ret = ''
      xml.write(ret, 2)
      ret }, 'http://www.loc.gov/standards/mods/')
end

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# File 'lib/serializers/mods.rb', line 31

def to_mods(include_namespace = true)
  mods = REXML::Element.new 'mods'
  if include_namespace
    mods.add_namespace "xlink", "http://www.w3.org/1999/xlink"
    mods.add_namespace "xsi", "http://www.w3.org/2001/XMLSchema-instance"
    mods.add_namespace "http://www.loc.gov/mods/v3"
    mods.attributes['xsi:schemaLocation'] = "http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-0.xsd"
  end
  
  mods.attributes['version'] = '3.0'
  mods.attributes['ID'] = 'rletters_' + shasum
  
  unless title.blank?
    title_info = mods.add_element 'titleInfo'
    title_elt = title_info.add_element 'title'
    title_elt.text = title
  end
  
  unless formatted_author_list.nil? || formatted_author_list.count == 0
    formatted_author_list.each do |a|
      name = mods.add_element 'name'
      name.attributes['type'] = 'personal'
      
      first_name_elt = name.add_element 'namePart'
      first_name_elt.text = a.first
      first_name_elt.attributes['type'] = 'given'
      
      last_name = ''
      last_name << " #{a.von}" unless a.von.blank?
      last_name << a.last
      last_name << ", #{a.suffix}" unless a.suffix.blank?
      last_name_elt = name.add_element 'namePart'
      last_name_elt.text = last_name
      last_name_elt.attributes['type'] = 'family'
      
      role = name.add_element 'role'
      roleTerm = role.add_element 'roleTerm'
      roleTerm.text = 'author'
      roleTerm.attributes['type'] = 'text'
      roleTerm.attributes['authority'] = 'marcrelator'
    end
  end
  
  type_of_resource = mods.add_element 'typeOfResource'
  type_of_resource.text = 'text'
  
  article_genre = mods.add_element 'genre'
  article_genre.text = 'article'
  
  article_origin_info = mods.add_element 'originInfo'
  article_issuance = article_origin_info.add_element 'issuance'
  article_issuance.text = 'monographic'
  unless year.blank?
    date_issued = article_origin_info.add_element 'dateIssued'
    date_issued.text = year
  end
  
  related_item = mods.add_element 'relatedItem'
  related_item.attributes['type'] = 'host'
  
  unless journal.blank?
    title_info = related_item.add_element 'titleInfo'
    title_info.attributes['type'] = 'abbreviated'
    
    title_elt = title_info.add_element 'title'
    title_elt.text = journal
  end
  
  journal_origin_info = related_item.add_element 'originInfo'
  journal_issuance = journal_origin_info.add_element 'issuance'
  journal_issuance.text = 'continuing'
  unless year.blank?
    date_issued = journal_origin_info.add_element 'dateIssued'
    date_issued.text = year
  end
  
  journal_genre_1 = related_item.add_element 'genre'
  journal_genre_1.text = 'periodical'
  journal_genre_1.attributes['authority'] = 'marcgt'
  journal_genre_2 = related_item.add_element 'genre'
  journal_genre_2.text = 'academic journal'
  
  part = related_item.add_element 'part'
  unless volume.blank?
    detail = part.add_element 'detail'
    detail.attributes['type'] = 'volume'
    number_elt = detail.add_element 'number'
    number_elt.text = volume
  end
  
  unless number.blank?
    detail = part.add_element 'detail'
    detail.attributes['type'] = 'issue'
    number_elt = detail.add_element 'number'
    number_elt.text = number
    caption = detail.add_element 'caption'
    caption.text = 'no.'
  end
  
  unless pages.blank?
    extent = part.add_element 'extent'
    extent.attributes['unit'] = 'page'
    unless start_page.blank?
      start = extent.add_element 'start'
      start.text = start_page
    end
    unless end_page.blank?
      end_elt = extent.add_element 'end'
      end_elt.text = end_page
    end
  end
  
  unless year.blank?
    date = part.add_element 'date'
    date.text = year
  end
  
  unless doi.blank?
    identifier = mods.add_element 'identifier'
    identifier.attributes['type'] = 'doi'
    identifier.text = doi
  end
  
  doc = REXML::Document.new
  doc << REXML::XMLDecl.new
  doc << mods
  doc
end