func UpdateItemHandler(params martini.Params, item types.Item, r render.Render, db *mgo.Database) {
DB.Update(params["id"], item, db)
r.JSON(200, DB.GetAll(db))
}
func PostItemHandler(item types.Item, r render.Render, db *mgo.Database) {
DB.AddNew(item, db)
r.JSON(200, DB.GetAll(db))
}
func DeleteItemHandler(params martini.Params, r render.Render, db *mgo.Database) {
DB.Remove(params["id"], db)
r.JSON(200, DB.GetAll(db))
}
func GetItemsHandler(r render.Render, db *mgo.Database) {
r.JSON(200, DB.GetAll(db))
}