我正在使用mongoose中间件连接到mongodb。
我有MongoDB集合:
{ "_id" : ObjectId("54801a4def32fe8c2bc642a6"), "name" : "Cyber KOK", "serial" : null }
{ "_id" : ObjectId("54801a4def32fe8c2bc642a5"), "name" : "Cyber KOK", "serial" : "" }
{ "_id" : ObjectId("54801a4def32fe8c2bc642a7"), "name" : "Cyber KOK", "serial" : " " }
{ "_id" : ObjectId("54801a4def32fe8c2bc642a8"), "name" : "Cyber KOK", "serial" : "14A16" }
{ "_id" : ObjectId("54801a4def32fe8c2bc642a9"), "name" : "Cyber KOK", "serial" : "19B20" }
如何使用mongoose在一个命令中查询mongodb集合?
{ "_id" : ObjectId("54801a4def32fe8c2bc642a6"), "name" : "Cyber KOK", "serial" : null }
{ "_id" : ObjectId("54801a4def32fe8c2bc642a5"), "name" : "Cyber KOK", "serial" : "" }
{ "_id" : ObjectId("54801a4def32fe8c2bc642a7"), "name" : "Cyber KOK", "serial" : " " }
谢谢。 WJ。
答案 0 :(得分:0)
尝试类似
的内容Model.find({$or : [{serial: ""}, {serial: " "}, {serial: null}]}, function(){...});