Class: Qa::Authorities::Getty::Ulan

Inherits:
Base
  • Object
show all
Includes:
WebServiceBase
Defined in:
lib/qa/authorities/getty/ulan.rb

Instance Attribute Summary

Attributes included from WebServiceBase

#raw_response

Instance Method Summary collapse

Methods included from WebServiceBase

#json, #response

Methods inherited from Base

#all

Instance Method Details

#build_query_url(q) ⇒ Object

Replace ampersands, otherwise the query will fail



10
11
12
 
# File 'lib/qa/authorities/getty/ulan.rb', line 10

def build_query_url(q)
  "http://vocab.getty.edu/sparql.json?query=#{ERB::Util.url_encode(sparql(q)).gsub('&', '%26')}&_implicit=false&implicit=true&_equivalent=false&_form=%2Fsparql"
end

#find(id) ⇒ Object 



40
41
42
 
# File 'lib/qa/authorities/getty/ulan.rb', line 40

def find(id)
  json(find_url(id))
end

#find_url(id) ⇒ Object 



44
45
46
 
# File 'lib/qa/authorities/getty/ulan.rb', line 44

def find_url(id)
  "http://vocab.getty.edu/download/json?uri=http://vocab.getty.edu/ulan/#{id}.json"
end

#request_options ⇒ Object 



48
49
50
 
# File 'lib/qa/authorities/getty/ulan.rb', line 48

def request_options
  { accept: 'application/sparql-results+json' }
end

#search(q) ⇒ Object 



5
6
7
 
# File 'lib/qa/authorities/getty/ulan.rb', line 5

def search(q)
  parse_authority_response(json(build_query_url(q)))
end

#sparql(q) ⇒ Object

rubocop:disable Metrics/MethodLength



14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
 
# File 'lib/qa/authorities/getty/ulan.rb', line 14

def sparql(q) # rubocop:disable Metrics/MethodLength
  search = untaint(q)
  # if more than one term is supplied, check both preferred and alt labels
  if search.include?(' ')
    clauses = search.split(' ').collect do |i|
      %((regex(?name, "#{i}", "i") || regex(?alt, "#{i}", "i")))
    end
    ex = "(#{clauses.join(' && ')})"
  else
    ex = %(regex(?name, "#{search}", "i"))
  end
  # The full text index matches on fields besides the term, so we filter to ensure the match is in the term.
  %(SELECT DISTINCT ?s ?name ?bio {
    ?s a skos:Concept; luc:term "#{search}";
        skos:inScheme <http://vocab.getty.edu/ulan/> ;
        gvp:prefLabelGVP [skosxl:literalForm ?name] ;
        foaf:focus/gvp:biographyPreferred [schema:description ?bio] ;
        skos:altLabel ?alt .
    FILTER #{ex} .
  } ORDER BY ?name).gsub(/[\s\n]+/, " ")
end

#untaint(q) ⇒ Object 



36
37
38
 
# File 'lib/qa/authorities/getty/ulan.rb', line 36

def untaint(q)
  q.gsub(/[^\w\s-]/, '')
end