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mongodb將無值視爲-1?下面的代碼只顯示值爲1的數據,其中我也有0或null或none值。mongodb將-1視爲無值-1
case Some("hideUrX") => q = q ++ MongoDBObject("$and" -> List(MongoDBObject("ratings.rating" -> MongoDBObject("$ne" -> -1)), MongoDBObject("ratings.userId" -> userId)))