Function collection

lib/db.js:156–175

(store, fn)

}

function collection(store, fn) {
  var db = store._db;

  return getConnection(db).then(function (mdb) {
    return new Promise(function(resolve, reject) {
      mdb.collection(store.namespace, function (err, collection) {
        if(err || !collection) {
          error(err || new Error('Unable to get ' + store.namespace + ' collection'));
          process.exit(1);
        }

        if (fn) fn(null, collection);
        resolve(collection);
      });
    });
  }).catch(function (err) {
    if (fn) fn(err);
    throw err;
  });
}

/**
 * Returns a promise, or calls fn with the mongo collection served by this store