Class: PennMARC::Access

Inherits:
Helper
  • Object
show all
Defined in:
lib/pennmarc/helpers/access.rb

Overview

Methods for extracting how a record can be accessed

Constant Summary collapse

ONLINE = 
'Online'
AT_THE_LIBRARY = 
'At the library'
'hdl.library.upenn.edu'

Constants included from Util

Util::TRAILING_PUNCTUATIONS_PATTERNS

Class Method Summary collapse

Methods included from Util

#append_relator, #append_trailing, #datafield_and_linked_alternate, #field_defined?, #field_or_its_linked_alternate?, #join_and_squish, #join_subfields, #linked_alternate, #linked_alternate_not_6_or_8, #no_subfield_value_matches?, #prefixed_subject_and_alternate, #relator, #relator_join_separator, #relator_term_subfield, #remove_paren_value_from_subfield_i, #subfield_defined?, #subfield_in?, #subfield_not_in?, #subfield_undefined?, #subfield_value?, #subfield_value_in?, #subfield_value_not_in?, #subfield_values, #subfield_values_for, #substring_after, #substring_before, #translate_relator, #trim_punctuation, #trim_trailing, #trim_trailing!, #valid_subject_genre_source_code?

Class Method Details

.facet(record) ⇒ Array

Based on enhanced metadata fields added by Alma publishing process or API, determine if the record has electronic access or has physical holdings, and is therefore “Online” or “At the library”. If a record is “At the library”, but has a link to a finding aid in the 856 field (matching certain criteria), also add ‘Online’ as an access method.

Parameters:

  • record (MARC::Record)

Returns:

  • (Array) 


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# File 'lib/pennmarc/helpers/access.rb', line 17

def facet(record)
  values = record.filter_map do |field|
    next AT_THE_LIBRARY if physical_holding_tag?(field)
    next ONLINE if electronic_holding_tag?(field)
  end

  return values if values.size == 2 # return early if all values are already present

  # only check if ONLINE isn't already there
  values << ONLINE if values.exclude?(ONLINE) && resource_link?(record)
  values.uniq
end