Class: WORLDCATAPI::SruSearchResponse

Inherits:
Object
  • Object
show all
Defined in:
lib/worldcatapi/sru_search_response.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(doc) ⇒ SruSearchResponse

Returns a new instance of SruSearchResponse.



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# File 'lib/worldcatapi/sru_search_response.rb', line 6

def initialize(doc)
  @raw = doc
  @header = OpenStruct.new
  parse_marcxml(doc)      
end

Instance Attribute Details

#header ⇒ Object

Returns the value of attribute header.



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# File 'lib/worldcatapi/sru_search_response.rb', line 4

def header
  @header
end

#raw ⇒ Object

Returns the value of attribute raw.



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# File 'lib/worldcatapi/sru_search_response.rb', line 4

def raw
  @raw
end

#records ⇒ Object

Returns the value of attribute records.



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# File 'lib/worldcatapi/sru_search_response.rb', line 4

def records
  @records
end

Instance Method Details

#extract_multiple(record, field, tag) ⇒ Object

Extract Multiple fields for record



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# File 'lib/worldcatapi/sru_search_response.rb', line 60

def extract_multiple(record, field, tag)
  a = Array.new
  record.fields(field).each do |field|
    a.push field[tag]
  end
  return a
end

#parse_marcxml(xml) ⇒ Object 



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# File 'lib/worldcatapi/sru_search_response.rb', line 12

def parse_marcxml(xml)
   @header = OpenStruct.new
   @records = Array.new
  
   xml = xml.gsub('<?xml-stylesheet type="text/xsl" href="/webservices/catalog/xsl/searchRetrieveResponse.xsl"?>', "")

   doc = Nokogiri::XML(xml)
   doc.remove_namespaces!
   @header.numberOfRecords = doc.xpath("//numberOfRecords").text
   @header.recordSchema = doc.xpath("//recordSchema").text
   @header.nextRecordPosition = doc.xpath("//nextRecordPosition").text
   @header.maxiumumRecords = doc.xpath("//maximumRecords").text
   @header.startRecord = doc.xpath("//startRecord").text
 
 
   xml_records =  doc.xpath("//records/record/recordData/record").to_xml

   reader = MARC::XMLReader.new(StringIO.new(xml_records))
   
   reader.each do |r|
     record = OpenStruct.new
     record.id = r["001"].value
     record.title = r['245']['a']
     
     record.author = Array.new        
     if r['100']
       record.author.push r['100']['a'] if r['100']
     elsif
       record.author = extract_multiple(r, '700', 'a')
     end
     
     record.summary = extract_multiple(r,'500', 'a') if r['500']                        
     record.isbn = extract_multiple(r, '020', 'a')
     
     record.publisher = r['260'].value if r['260']
     record.published_date = r['260']['c'] if r['260']
     record.edition = r['250']['a'] if r['250']
     record.physical_description = r['300'].value if r['300']
     
     record.link = "http://www.worldcat.org/oclc/#{record.id}"  
     @records << record
   end
   
   @records
end