Class: RSolr::Ext::Response::Spelling::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/rsolr-ext/response/spelling.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(response) ⇒ Base

Returns a new instance of Base.



15
16
17
 
# File 'lib/rsolr-ext/response/spelling.rb', line 15

def initialize(response)
  @response = response
end

Instance Attribute Details

#response ⇒ Object (readonly)

Returns the value of attribute response.



13
14
15
 
# File 'lib/rsolr-ext/response/spelling.rb', line 13

def response
  @response
end

Instance Method Details

#words ⇒ Object

returns an array of spelling suggestion for specific query words, as provided in the solr response. Only includes words with higher frequency of occurrence than word in original query. can’t do a full query suggestion because we only get info for each word;

combination of words may not have results. Thanks to Naomi Dushay!



25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
 
# File 'lib/rsolr-ext/response/spelling.rb', line 25

def words
  @words ||= (
    word_suggestions = []
    spellcheck = self.response[:spellcheck]
    if spellcheck && spellcheck[:suggestions]
      suggestions = spellcheck[:suggestions]
      unless suggestions.nil?
        # suggestions is an array: 
        #    (query term)
        #    (hash of term info and term suggestion) 
        #    ...
        #    (query term)
        #    (hash of term info and term suggestion) 
        #    'correctlySpelled'
        #    true/false
        #    collation
        #    (suggestion for collation)
        i_stop = suggestions.index("correctlySpelled")
        # step through array in 2s to get info for each term
        0.step(i_stop-1, 2) do |i| 
          term = suggestions[i]
          term_info = suggestions[i+1]
          # term_info is a hash:
          #   numFound =>
          #   startOffset =>
          #   endOffset =>
          #   origFreq =>
          #   suggestion =>  { frequency =>, word => }
          origFreq = term_info['origFreq']
          suggFreq = term_info['suggestion']['frequency'] 
          word_suggestions << term_info['suggestion']['word'] if suggFreq > origFreq
        end
      end
    end
    word_suggestions.uniq
  )
end