Simple file processing function.

scope issues

/**
 * CampaignController
 *
 * @description :: Server-side logic for managing campaigns
 * @help        :: See http://links.sailsjs.org/docs/controllers
 */

module.exports = {

	fileExtension: function(fileName) {
		return fileName.split('.').slice(-1);
	},

	process: function(req, res){

		// e.g.
		// 0 => infinite
		// 240000 => 4 minutes (240,000 miliseconds)
		// etc.
		//
		// Node defaults to 2 minutes.
		res.setTimeout(0);
		sails.log(req.file('xFile'));

		req.file('xFile').upload({
			
			// You can apply a file upload limit (in bytes)
			maxBytes: 1000000

		}, function whenDone(err, uploadedFiles, $scope){
			if(err) {
				return res.serverError(err);
			} else {

				if(typeof require !== 'undefined') {
					XLSX = require('xlsx');
				}

				sails.log(fileExtension(uploadedFiles[0].filename));

				/*var workbook = XLSX.readFile(req.xfile);
				sails.log(workbook);*/

				return res.json({
					files: uploadedFiles,
					textParams: req.params.all()
				});
			}
		});

	},

	upload: function(req, res){
		return res.view();
	}

};