Cannot search encrypted data bags

[halida]

In this code:
https://github.com/edelight/chef-solo-search/blob/master/libraries/search/parser.rb#L107

item could be a EncryptedDataBagItem, which don't have a keys method:
http://www.rubydoc.info/gems/chef/0.10.4/Chef/EncryptedDataBagItem

Then I cannot use it to search encrypted data bags, how can I fix it?

Error message:

Relevant File Content:
----------------------
/tmp/chef-solo/berks-cookbooks/chef-solo-search/libraries/search/parser.rb:

100:    class FieldName < Treetop::Runtime::SyntaxNode
101:      def match( item )
102:        if self.text_value.count("_") > 0
103:          item.merge!(build_flat_hash(item))
104:        end
105:        if self.text_value.end_with?("*")
106:          part = self.text_value.chomp("*")
107>>         item.keys.collect{ |key| key.start_with?(part)? key: nil}.compact
108:        else
109:          if item.has_key?(self.text_value)
110:            [self.text_value,]
111:          else
112:            nil
113:          end
114:        end
115:      end
116:    end

[2015-03-31T20:23:59+08:00] DEBUG: Re-raising exception: NoMethodError - undefined method `keys' for #<Chef::EncryptedDataBagItem:0x00000003fc2198>
/tmp/chef-solo/berks-cookbooks/chef-solo-search/libraries/search/parser.rb:107:in `match'

[jzubielik]

I had the same issue. Please check #71.