var mongoose = require('mongoose');
var journalSchema = mongoose.Schema({
  title : String,
  journalid: {type:String, index: { unique: true, dropDups: true }},
  articleCount : type:Number, default:1,
});
module.exports = mongoose.model('Journal', journalSchema);

function updateYear(journalid, year, callback) {
  Journal.findOneAndUpdate(
    {'journalid':journalid},
    {$inc : {'articleCount' : 1}}, // DO SOMETHING WITH year HERE
    function() {
      callback();
    });
}