Method: DissertationCatch#filter

Defined in:
app/referent_filters/dissertation_catch.rb

#filter(referent) ⇒ Object

input: Umlaut Referent object Is this a citation to a Dissertation Abstracts issn, or do we otherwise think it’s a dissertation citation? Then change it to a dissertation citation.



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# File 'app/referent_filters/dissertation_catch.rb', line 32

def filter(referent)
  issn = get_identifier(:urn, "issn", referent)
  return unless issn

  # normalize removing hyphen
  issn.gsub!('-', '')
  
  if ( @@da_issns.find { |i| i == issn } )
    # || lc($jtitle) =~ /dissertation/i || lc($jtitle2) =~ /dissertation/i)

    referent.enhance_referent("genre", "dissertation")

    metadata = referent.metadata

    # Reset it's title to the dissertation title
    title = if metadata['atitle'].present?
      metadata['atitle']
    elsif metadata['title'].present?
      metadata['title']
    end
    referent.enhance_referent("btitle", title) if title.present?
    referent.enhance_referent("title", title, true, false, :overwrite => true) if title.present?

    # Now erase titles that do not apply 
    referent.remove_value("atitle")
    referent.remove_value("jtitle")
    referent.remove_value("stitle")
    # issn or isbn are wrong, probably point to Dissertation Abstracts
    referent.remove_value("issn")
    referent.remove_value("isbn")
    # Same with all article level metadata
    referent.remove_value("volume")
    referent.remove_value("issue")
    referent.remove_value("issue_start")
    referent.remove_value("spage")
    referent.remove_value("epage")
    referent.remove_value("pages")
  end

end