* Implement Graphql Aggregation Feature for Bookshelf
Signed-off-by: Long Nguyen <olragon@gmail.com>
* Fix no-unused-vars
Signed-off-by: Long Nguyen <olragon@gmail.com>
* Fix code to use `model.get()` instead of internal structure
Signed-off-by: Long Nguyen <olragon@gmail.com>