CouchDB Map / Reduce for Answers to Straw Poll Questions

map

function(doc) {
  emit(doc.constituency, doc);
}

reduce

function(key, values){
  var total = 0;
  var voting = 0;
  var votes = {
    libdems: 0,
    conservatives: 0,
    labour: 0,
    green: 0,
    ukip: 0,
    bnp: 0,
    other: 0
  }

  for(var i=0; i < values.length; i++){
     total++;
     if(values[i].voting==1){
       var party = values[i].party.toLowerCase();
       party = party.replace(/ /g,"");
       votes[party]++;
     }
  }
  return {total: total, parties: votes};
}