mongo

type MgoCmd interface {
	Insert(args interface{}) error
	Update(condition interface{}, args interface{}) error
	UpdateByID(id string, args interface{}) error
	UpdateAll(condition interface{}, args interface{}) (*mgo.ChangeInfo, error)
	Upsert(condition interface{}, args interface{}) (*mgo.ChangeInfo, error)
	FindByID(id string) Query
	Find(interface{}) Query
	Delete(condition interface{}) error
	DeleteAll(condition interface{}) (*mgo.ChangeInfo, error)
	DeleteByID(id string) error
}

type MgoSession interface {
	New() *mgo.Session
	DB(dbname, collection string) MgoCmd
	Status() string
	Close()
}

type Query interface {
	All(interface{}) error
	One(interface{}) error
	Sort(...string) Query
	Select(interface{}) Query
	Limit(int) Query
	Skip(int) Query
	Count() (int, error)
}