[{"toystore":22,"toystore_name":"Toystore A","toys":[{"toy":"buzz","code":17001,"price":500},{"toy":"woddy","code":17002,"price":1000},{"toy":"pope","code":17003,"price":300}]},{"toystore":11,"toystore_name":"Toystore B","toys":[{"toy":"jessie","code":17005,"price":500},{"toy":"rex","code":17006,"price":2000}]}]

db.collection.aggregate([{$unwind:"$toys"},{$match:{$or:[{"toys.code":17001},{"toys.code":17003},{"toys.code":17005},{"toys.code":17005}],}},{$group:{_id:"$toystore_name",toy_array:{$push:{price_original:"$toys.price",toy:"$toys.toy"},},},},])