1

I am using Node.js with Helenus to connect to a Cassandra DB.

I have a query: SELECT score FROM team_scores WHERE team_name = 'foo'

When run from cqlsh, I get results that look like this:

score
-------
10

I then move the query over to Node and Helenus using cqlVersion 3.0.0. When I run this code:

pool.cql("SELECT score FROM team_scores WHERE team_name = 'foo'", function(err, results){
    console.log(results);
  });

The console reports:

[ <Row: Key: 'foo', ColumnCount: 1, Columns: [ 'score' ]> ]

What am I missing to get Helenus to return me the actual value of score rather than whatever it seems to be returning?

4

2 に答える 2

2

results is actually a list of row objects. You are probably seeing the result of a toString implementation.

Here is some good code to log out the results of a select:

results.forEach(function(row){
  //all row of result
  row.forEach(function(name,value,ts,ttl){
    //all column of row
    console.log(name,value,ts,ttl);
  });

});

you can read more at the helenus github. See the stuff on the bottom about the row object.

于 2012-12-04T01:46:09.663 に答える
2 
results.forEach(function(row){
  var score = row.get('score').value;
  console.log(score); //will give you 10
});
于 2012-12-27T17:10:57.830 に答える