code: function(req, res, next){
  
  		// Search for ID if requested
  		var id = req.param('id');
  
  		findAssociated(id, finishRendering);
  
  		// Render JSON content
  		function finishRendering(data){
  			// If none object found with given id return error
  			if(id && !data[0])
  				return next();
  
  			// If querying for id, then returns only the object
  			if(id)
  				data = data[0];
  
  			// Render the json
  			res.send(data);
  		}
  	}
docs: Mix in matches inside groups data