Ways to delete a document from Mongodb depends on the existence of a more recent document

Is there a way to automatically delete previous database insertions in my meteor web app whenever a new document is inserted? I've attempted the following code, but it hasn't been successful:

if(SearchLobby.find({profile: Meteor.userId()}).count() > 1){

  var date1=SearchLobby.find().limit(1).sort({$natural:-1}).createdAt;

  if(SearchLobby.find({profile: Meteor.userId()}).createdAt != date1)
    SearchLobby.remove({profile: Meteor.userId()});
}

I'm unsure of alternative approaches to tackle this issue. My initial attempt didn't yield the expected results.

javascriptmongodbmeteordatabase

Answer №1

If I were to choose, I'd recommend using Meteor Collection Hooks specifically with the before.insert hook. To implement this on the server side, you can use the following code:

SearchLobby.before.insert(function(userId, doc) {
    SearchLobby.remove({profile:Meteor.userId()});
});

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