Class: Cocina::Models::Mapping::FromMods::Purl

Inherits:
Object
  • Object
show all
Defined in:
lib/cocina/models/mapping/from_mods/purl.rb

Overview

Support for mapping PURLs.

Class Method Summary collapse

Class Method Details

.primary_purl_node(resource_element, purl) ⇒ Object 



9
10
11
12
13
14
15
16
17
18
19
20
21
 
# File 'lib/cocina/models/mapping/from_mods/purl.rb', line 9

def self.primary_purl_node(resource_element, purl)
  purl_nodes = resource_element.xpath('mods:location/mods:url',
                                      mods: Description::DESC_METADATA_NS).select do |url_node|
    Cocina::Models::Mapping::Purl.purl?(url_node.text)
  end

  return purl_nodes.find { |purl_node| purl_value(purl_node) == purl } if purl

  # Prefer a primary PURL node
  primary_purl_node = purl_nodes.find { |purl_node| purl_node[:usage] == 'primary display' }

  primary_purl_node || purl_nodes.first
end

.primary_purl_value(resource_element, purl) ⇒ Object 



41
42
43
 
# File 'lib/cocina/models/mapping/from_mods/purl.rb', line 41

def self.primary_purl_value(resource_element, purl)
  purl_value(primary_purl_node(resource_element, purl))
end

.purl_note(purl_node) ⇒ Object 



23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
 
# File 'lib/cocina/models/mapping/from_mods/purl.rb', line 23

def self.purl_note(purl_node)
  notes = []
  if purl_node[:note]
    notes << {
      value: purl_node['note'],
      appliesTo: [{ value: 'purl' }]
    }
  end
  if purl_node['displayLabel']
    notes << {
      value: purl_node['displayLabel'],
      type: 'display label',
      appliesTo: [{ value: 'purl' }]
    }
  end
  notes
end

.purl_value(purl_node) ⇒ Object 



45
46
47
48
 
# File 'lib/cocina/models/mapping/from_mods/purl.rb', line 45

def self.purl_value(purl_node)
  # Note that normalizing http to https
  purl_node&.content&.sub(/^https?/, 'https')&.presence
end