category info

category-info.js

/*globals require, console, process */
'use strict';

var nconf = require('nconf');
var async = require('async');

nconf.file({
	file: 'config.json'
});

nconf.defaults({
	base_dir: __dirname,
	views_dir: './build/public/templates',
	upload_path: 'public/uploads',
});

var db = require('./src/database');
var result = {};
db.init(function(err) {
	if (err) {
		console.log("NodeBB could not connect to your database. Error: " + err.message);
		process.exit();
	}

	printCategoryTree(function (err) {
		if (err) {
			console.error(err);
			process.exit();
		}
		console.log('done');
		console.log(JSON.stringify(result, null, 4));
		process.exit();
	});
});

function printCategoryTree(callback) {
	async.waterfall([
		function (next) {
			db.getSortedSetRange('categories:cid', 0, -1, next);
		},
		function (cids, next) {
			async.eachSeries(cids, function (cid, next) {
				async.parallel({
					category: function (next) {
						db.getObject('category:' + cid, next);
					},
					children: function (next) {
						db.getSortedSetRange('cid:' + cid + ':children', 0, -1, next);
					},
				}, function (err, data) {
					if (err) {
						return next(err);
					}
					result[cid] = {
						parentCid: data.category.parentCid,
						children: data.children,						
					};
					next();
				});
			}, next);
		},
	], callback);
}