# File lib/puppet/indirector/request.rb, line 112
112:     def query_string
113:         return "" unless options and ! options.empty?
114:         "?" + options.collect do |key, value|
115:             case value
116:             when nil; next
117:             when true, false; value = value.to_s
118:             when Fixnum, Bignum, Float; value = value # nothing
119:             when String; value = CGI.escape(value)
120:             when Symbol; value = CGI.escape(value.to_s)
121:             when Array; value = CGI.escape(YAML.dump(value))
122:             else
123:                 raise ArgumentError, "HTTP REST queries cannot handle values of type '%s'" % value.class
124:             end
125: 
126:             "%s=%s" % [key, value]
127:         end.join("&")
128:     end