module Elasticsearch::Extensions::Documents::Utils
Public Class Methods
sanitize_for_query_string_query(query_string)
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# File lib/elasticsearch/extensions/documents/utils.rb, line 6 def self.sanitize_for_query_string_query(query_string) # http://stackoverflow.com/questions/16205341/symbols-in-query-string-for-elasticse # Escape special characters # http://lucene.apache.org/core/old_versioned_docs/versions/2_9_1/queryparsersyntax escaped_characters = Regexp.escape('/\\+-&|!(){}[]^~*?:') query_string = query_string.gsub(/([#{escaped_characters}])/, '\\\\\1') # AND, OR and NOT are used by lucene as logical operators. We need # to escape them ['AND', 'OR', 'NOT'].each do |word| escaped_word = word.split('').map {|char| "\\#{char}" }.join('') query_string = query_string.gsub(/\s*\b(#{word.upcase})\b\s*/, " #{escaped_word} ") end # Escape odd quotes quote_count = query_string.count '"' query_string = query_string.gsub(/(.*)"(.*)/, '\1\"\2') if quote_count % 2 == 1 query_string end