Praffesor's Gems

#	Total Rank	Daily Rank	Name	Summary
1	41,777	80,049	mongoid_sortable_relation	It adds possibility for sorting relation
2	46,186	46,897	activerecord_sortable	It adds possibility for sorting relation
3	48,716	80,049	mongoid_criteria_filter	It adds possibility for criteria callbacks (data filters)