mano/lib/utils/unserialize-arrays.js

Web application framework

'use strict';

var every         = require('es5-ext/object/every')
  , forEach       = require('es5-ext/object/for-each')
  , isPlainObject = require('es5-ext/object/is-plain-object')

  , isArray = Array.isArray, push = Array.prototype.push
  , re = /\[(\d*)\]$/;

module.exports = function (data) {
	var toPush = {};
	forEach(data, function (value, name) {
		var match = name.match(re), nuName, nuValue;
		if (!match) return;
		nuName = name.slice(0, -match[0].length);
		if (!data[nuName]) data[nuName] = [];
		if (match[1]) {
			data[nuName][match[1]] = value;
		} else {
			if (!toPush[nuName]) toPush[nuName] = [];
			if (isPlainObject(value) && every(value, isArray)) {
				nuValue = [];
				forEach(value, function (value, key) {
					value.forEach(function (value, index) {
						if (!nuValue[index]) nuValue[index] = {};
						nuValue[index][key] = value;
					});
				});
				value = nuValue;
			}
			if (isArray(value)) push.apply(toPush[nuName], value);
			else toPush[nuName].push(value);
		}
		delete data[name];
	});
	forEach(toPush, function (items, name) { push.apply(data[name], items); });
	return data;
};