dirac middleware success hook

dirac-middleware.js

m.update = function(collection, options){
  options = options || {};

  return function(req, res){
    collection = collection || req.collection;

    collection.update(req.queryObj, req.body, req.queryOptions, function(error, results){
      if (error) return console.log(error), res.status(400).send();

      if (results && results.length == 0) return res.status(404).end();

      if (!req.queryOptions.returning || req.queryOptions.returning.length == 0)
        return res.status(204).end();

      var val = !options.isMultiple ? results[0] : results;

      if ( req.queryOptions.envelope ){
        val = { data: val }
      }

      if (typeof options.success === 'function')
        options.success(val);

      res.status(200).json(val);
    })
  };
};

route.js

app.put('/api/orders/:id'
, m.restrict(['admin'])
, m.param('id')
, m.update( db.orders, { success: function(order) {
    if ( order ) venter.emit('order:type:change', order);
  }})
);