我有一个模式（称为事件），其数据如下所示：
{ "_id" : ObjectId( "4f8dcb06ee21783d7400003c" ),
"venue" : ObjectId( "4f8dcb06ee21783d7400003b" ),
"name" : "Some event",
"webite: "www.whatever.com",
"attendees" : [
{ "_id" : ObjectId( "4f8dfb06ee21783d7134503a" ), "firstName" : "Joe", "lastName" : "Blogs", "emailAddress" : "some@thing1.com" },
{ "_id" : ObjectId( "4f8dfb06ee21783d7134503b" ), "firstName" : "John", "lastName" : "West", "emailAddress" : "some@thing2.com" }
{ "_id" : ObjectId( "4f8dfb06ee21783d7134503c" ), "firstName" : "Simon", "lastName" : "Green", "emailAddress" : "some@thing3.com" }
{ "_id" : ObjectId( "4f8dfb06ee21783d7134503d" ), "firstName" : "Harry", "lastName" : "Smith", "emailAddress" : "some@thing4.com" }
],
"eventType" : "Party"
}
如何“删除” ID 为 4f8dfb06ee21783d7134503c 的参加者对象？
基本上像......
Event.findOne('attendees._id' : ObjectId('4f8dfb06ee21783d7134503c'), function(err, eventItem){
//delete the attendee embedded doc with id 4f8dfb06ee21783d7134503c
});