Question

161

mongodb native driver get collection names without database name

rated 0 times [ 166] [ 5] / answers: 1 / hits: 6965 / 10 Years ago, sat, may 17, 2014, 12:00:00

How can I get collection names without database name from mongodb native driver for nodeJS?

db.collectionNames(function(err, collections) {

      if (err) {

        log.error(err);

      } else {

        log.info(collections);

      }

    });

This code returns something like this:

databaseName.collection1, databaseName.collection2, databaseName.collection3

But i want to get names: collection1, collection2, collection3

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jaelyn

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answered 10 Years ago mckinleyi · Accepted Answer

The exact structure of the response is a sub-document with the name key in an array:

[

  { name: 'test.cursors' },

  { name: 'test.episodes' },

  { name: 'test.zips' },

  { name: 'test.scripts' }

]

So just use map with a regex replace:

db.collectionNames(function(err, collections) {



  console.log(

    collections.map(function(x) {

      return x.name.replace(/^([^.]*)./,);

    })

  );



});

And that will strip out everything up to the first . which is the database prefix. Just in case you actually have collection names with a . in them.