Class: MarcIndexer

Inherits:
Blacklight::Marc::Indexer show all
Includes:
Blacklight::Marc::Indexer::Formats
Defined in:
lib/generators/blacklight/marc/templates/app/models/marc_indexer.rb

Constant Summary

Constants inherited from Blacklight::Marc::Indexer

Blacklight::Marc::Indexer::ATOU, Blacklight::Marc::Indexer::ATOZ

Instance Method Summary collapse

Methods included from Blacklight::Marc::Indexer::Formats

#get_format

Methods inherited from Blacklight::Marc::Indexer

#get_xml, #trim

Constructor Details

#initialize ⇒ MarcIndexer

Returns a new instance of MarcIndexer.



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# File 'lib/generators/blacklight/marc/templates/app/models/marc_indexer.rb', line 6

def initialize
  super

  settings do
    # type may be 'binary', 'xml', or 'json'
    provide "marc_source.type", "binary"
    # set this to be non-negative if threshold should be enforced
    provide 'solr_writer.max_skipped', -1
  end

  to_field "id", extract_marc("001"), trim, first_only
  to_field 'marc_ss', get_xml
  to_field "all_text_timv", extract_all_marc_values do |r, acc|
    acc.replace [acc.join(' ')] # turn it into a single string
  end

  to_field "language_ssim", marc_languages("008[35-37]:041a:041d:")
  to_field "format", get_format
  to_field "isbn_tsim",  extract_marc('020a', separator: nil) do |rec, acc|
       orig = acc.dup
       acc.map!{|x| StdNum::ISBN.allNormalizedValues(x)}
       acc << orig
       acc.flatten!
       acc.uniq!
  end

  to_field 'material_type_ssm', extract_marc('300a'), trim_punctuation

  # Title fields
  #    primary title 
  to_field 'title_tsim', extract_marc('245a')
  to_field 'title_ssm', extract_marc('245a', alternate_script: false), trim_punctuation
  to_field 'title_vern_ssm', extract_marc('245a', alternate_script: :only), trim_punctuation

  #    subtitle

  to_field 'subtitle_tsim', extract_marc('245b')
  to_field 'subtitle_ssm', extract_marc('245b', alternate_script: false), trim_punctuation
  to_field 'subtitle_vern_ssm', extract_marc('245b', alternate_script: :only), trim_punctuation

  #    additional title fields
  to_field 'title_addl_tsim',
    extract_marc(%W{
      245abnps
      130#{ATOZ}
      240abcdefgklmnopqrs
      210ab
      222ab
      242abnp
      243abcdefgklmnopqrs
      246abcdefgnp
      247abcdefgnp
    }.join(':'))

  to_field 'title_added_entry_tsim', extract_marc(%W{
    700gklmnoprst
    710fgklmnopqrst
    711fgklnpst
    730abcdefgklmnopqrst
    740anp
  }.join(':'))

  to_field 'title_series_tsim', extract_marc("440anpv:490av")

  to_field 'title_si', marc_sortable_title

  # Author fields

  to_field 'author_tsim', extract_marc("100abcegqu:110abcdegnu:111acdegjnqu")
  to_field 'author_addl_tsim', extract_marc("700abcegqu:710abcdegnu:711acdegjnqu")
  to_field 'author_ssm', extract_marc("100abcdq:110#{ATOZ}:111#{ATOZ}", alternate_script: false)
  to_field 'author_vern_ssm', extract_marc("100abcdq:110#{ATOZ}:111#{ATOZ}", alternate_script: :only)

  # JSTOR isn't an author. Try to not use it as one
  to_field 'author_si', marc_sortable_author

  # Subject fields
  to_field 'subject_tsim', extract_marc(%W(
    600#{ATOU}
    610#{ATOU}
    611#{ATOU}
    630#{ATOU}
    650abcde
    651ae
    653a:654abcde:655abc
  ).join(':'))
  to_field 'subject_addl_tsim', extract_marc("600vwxyz:610vwxyz:611vwxyz:630vwxyz:650vwxyz:651vwxyz:654vwxyz:655vwxyz")
  to_field 'subject_ssim', extract_marc("600abcdq:610ab:611ab:630aa:650aa:653aa:654ab:655ab"), trim_punctuation
  to_field 'subject_era_ssim',  extract_marc("650y:651y:654y:655y"), trim_punctuation
  to_field 'subject_geo_ssim',  extract_marc("651a:650z"), trim_punctuation

  # Publication fields
  to_field 'published_ssm', extract_marc('260a', alternate_script: false), trim_punctuation
  to_field 'published_vern_ssm', extract_marc('260a', alternate_script: :only), trim_punctuation
  to_field 'pub_date_si', marc_publication_date
  to_field 'pub_date_ssim', marc_publication_date

  # Call Number fields
  to_field 'lc_callnum_ssm', extract_marc('050ab'), first_only

  first_letter = lambda {|rec, acc| acc.map!{|x| x[0]} }
  to_field 'lc_1letter_ssim', extract_marc('050ab'), first_only, first_letter, translation_map('callnumber_map')

  alpha_pat = /\A([A-Z]{1,3})\d.*\Z/
  alpha_only = lambda do |rec, acc|
    acc.map! do |x|
      (m = alpha_pat.match(x)) ? m[1] : nil
    end
    acc.compact! # eliminate nils
  end
  to_field 'lc_alpha_ssim', extract_marc('050a'), alpha_only, first_only 

  to_field 'lc_b4cutter_ssim', extract_marc('050a'), first_only

  # URL Fields

  notfulltext = /abstract|description|sample text|table of contents|/i

  to_field('url_fulltext_ssm') do |rec, acc|
    rec.fields('856').each do |f|
      case f.indicator2
      when '0'
        f.find_all{|sf| sf.code == 'u'}.each do |url|
          acc << url.value
        end
      when '2'
        # do nothing
      else
        z3 = [f['z'], f['3']].join(' ')
        unless notfulltext.match(z3)
          acc << f['u'] unless f['u'].nil?
        end
      end
    end
  end

  # Very similar to url_fulltext_display. Should DRY up.
  to_field 'url_suppl_ssm' do |rec, acc|
    rec.fields('856').each do |f|
      case f.indicator2
      when '2'
        f.find_all{|sf| sf.code == 'u'}.each do |url|
          acc << url.value
        end
      when '0'
        # do nothing
      else
        z3 = [f['z'], f['3']].join(' ')
        if notfulltext.match(z3)
          acc << f['u'] unless f['u'].nil?
        end
      end
    end
  end
end