lib/mongoid/contextual/aggregable/mongo.rb in mongoid-3.1.6 vs lib/mongoid/contextual/aggregable/mongo.rb in mongoid-3.1.7

@@ -127,9 +127,11 @@
         # @since 3.1.0
         def pipeline(field)
           db_field = "$#{database_field_name(field)}"
           pipeline = []
           pipeline << { "$match" => criteria.nin(field => nil).selector }
+          pipeline << { "$sort" => criteria.options[:sort] } if criteria.options[:sort]
+          pipeline << { "$skip" => criteria.options[:skip] } if criteria.options[:skip]
           pipeline << { "$limit" => criteria.options[:limit] } if criteria.options[:limit]
           pipeline << {
             "$group"  => {
               "_id"   => field.to_s,
               "count" => { "$sum" => 1 },