Class: Dor::DescribableIndexer

Inherits:
Object
  • Object
show all
Defined in:
lib/dor/indexers/describable_indexer.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(resource:) ⇒ DescribableIndexer

Returns a new instance of DescribableIndexer.



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# File 'lib/dor/indexers/describable_indexer.rb', line 6

def initialize(resource:)
  @resource = resource
end

Instance Attribute Details

#resource ⇒ Object (readonly)

Returns the value of attribute resource.



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# File 'lib/dor/indexers/describable_indexer.rb', line 5

def resource
  @resource
end

Instance Method Details

#add_metadata_format_to_solr_doc ⇒ Object 



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# File 'lib/dor/indexers/describable_indexer.rb', line 15

def add_metadata_format_to_solr_doc
  { 'metadata_format_ssim' => 'mods' }
end

#add_mods_to_solr_doc ⇒ Object 



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# File 'lib/dor/indexers/describable_indexer.rb', line 19

def add_mods_to_solr_doc
  solr_doc = {}
  mods_sources = {
    sw_title_display: %w(sw_display_title_tesim),
    main_author_w_date: %w(sw_author_ssim sw_author_tesim),
    sw_sort_author: %w(sw_author_sort_ssi),
    sw_language_facet: %w(sw_language_ssim sw_language_tesim),
    sw_genre: %w(sw_genre_ssim sw_genre_tesim),
    format_main: %w(sw_format_ssim sw_format_tesim),
    topic_facet: %w(sw_topic_ssim sw_topic_tesim),
    era_facet: %w(sw_subject_temporal_ssim sw_subject_temporal_tesim),
    geographic_facet: %w(sw_subject_geographic_ssim sw_subject_geographic_tesim),
    %i[term_values typeOfResource] => %w(mods_typeOfResource_ssim mods_typeOfResource_tesim),
    pub_year_sort_str: %w(sw_pub_date_sort_ssi),
    pub_year_int: %w(sw_pub_date_sort_isi),
    pub_year_display_str: %w(sw_pub_date_facet_ssi)
  }

  mods_sources.each_pair do |meth, solr_keys|
    vals = meth.is_a?(Array) ? resource.stanford_mods.send(meth.shift, *meth) : resource.stanford_mods.send(meth)

    next if vals.nil? || (vals.respond_to?(:empty?) && vals.empty?)

    solr_keys.each do |key|
      solr_doc[key] ||= []
      solr_doc[key].push(*vals)
    end
    # asterisk to avoid multi-dimensional array: push values, not the array
  end

  # convert multivalued fields to single value
  %w(sw_pub_date_sort_ssi sw_pub_date_sort_isi sw_pub_date_facet_ssi).each do |key|
    solr_doc[key] = solr_doc[key].first unless solr_doc[key].nil?
  end
  # some fields get explicit "(none)" placeholder values, mostly for faceting
  %w(sw_language_tesim sw_genre_tesim sw_format_tesim).each do |key|
    solr_doc[key] = ['(none)'] if solr_doc[key].nil? || solr_doc[key].empty?
  end
  solr_doc
end

#to_solr ⇒ Hash

Returns the partial solr document for describable concerns.

Returns:

  • (Hash) —

    the partial solr document for describable concerns



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# File 'lib/dor/indexers/describable_indexer.rb', line 11

def to_solr
  add_metadata_format_to_solr_doc.merge(add_mods_to_solr_doc)
end