factory.js

Factory = function() {
  var factoryName;
  var factories = {};

  this.define = function(name, collection, attributes) {
    factoryName = name;
    factories[name] = {
      name: name,
      collection: collection,
      attributes: attributes,
      has: []
    };
    return this;
  };
  this.has = function(name) {
    console.log(factoryName + ' has ' + name);

    factories[factoryName].has.push(name);
    return this;
  };
  this.build = function(name) {
    console.log('build: ' + name);

    var insertId = this._insert(name);
    return factories[name].collection.findOne(insertId);
  };
  this._insert = function(name) {
    var self = this;
    var factory = factories[name];
    var insertId = factory.collection.insert(factory.attributes);
    _.each(factory.has, function(n) {
      var update = {};
      var relId = self._insert(n);
      update[n + 'Id'] = relId;
      factory.collection.update(insertId, { $set: update });
    });
    return insertId;
  };
  this.debug = function() {
    console.log('factories: ', factories);
  };
};