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Я новичок в разработке MongoDB и NodeJS. Я прочитал все, что нашел и, вероятно, искал неправильно. Пожалуйста, помогите мне!Получить данные от MongoDB с помощью NodeJS
У меня есть БД - Имя: Магазин, Документы: категории, продукты
Это db.collection ('категория');
{
"_id" : { "$oid" : "5172d1daffdd81f3234d5f88" },
"categories" : [ {
"categories" : [ {
"id" : "mens-clothing-suits",
"image" : "categories/mens-clothing-suits.jpg",
"name" : "Suits",
"page_description" : "Shop Men's suits for business or pleasure. Enjoy from a variety of different styles and cuts.",
"page_title" : "Mens Suits for Business and Casual",
"parent_category_id" : "mens-clothing",
"c_showInMenu" : true
},
{
"id" : "mens-clothing-jackets",
"image" : "categories/mens-clothing-sportscoats.png",
"name" : "Jackets & Coats",
"page_description" : "Shop Men's Jackets, Coats & Outerwear. Classic outdoor-tested garments with traditional styling details that provide comfort, insulation and ease of movement, whatever the weather.",
"page_title" : "Men's Jackets Including Jackets & Blazzers",
"parent_category_id" : "mens-clothing",
"c_showInMenu" : true
},
{
"id" : "mens-clothing-dress-shirts",
"image" : "categories/mens-clothing-dress-shirts.jpg",
"name" : "Dress Shirts",
"page_description" : "Shop Men's dress shirts in a variety of colors and styles including striped, button down, non-iron & more", "page_title" : "Men's Dress Shirts including Striped, Button Down, Non-Iron & More",
"parent_category_id" : "mens-clothing",
"c_showInMenu" : true
},
{
"id" : "mens-clothing-shorts",
"image" : "categories/mens-clothing-shorts.png",
"name" : "Shorts", "page_description" : "Shop Men's spring shorts in cotton. Variety of different fits.",
"page_title" : "Men's Spring Shorts",
"parent_category_id" : "mens-clothing",
"c_showInMenu" : true
},
{
"id" : "mens-clothing-pants",
"image" : "categories/mens-clothing-pants.png",
"name" : "Pants",
"page_description" : "Shop Men's Trousers. Practical, easy-to-wear styles wherever you're headed. Check out famous rugged, long-lasting trousers, jeans, cargo pants and more.",
"page_title" : "Men's Pants Including Khakis, Cargos, Trousers, Jeans & More",
"parent_category_id" : "mens-clothing",
"c_showInMenu" : true
} ],
"id" : "mens-clothing",
"image" : "categories/mens-clothing-accessories.jpg",
"name" : "Clothing",
"page_description" : "Shop Men's Clothing. Relaxed, timeless classics you can rely on; from denim to corduroys and sweaters to shirts. Huge range of contemporary colours and eco-aware designs: great casualwear.",
"page_title" : "Mens Clothing Including Suits, Tops, Bottoms & More",
"parent_category_id" : "mens",
"c_showInMenu" : true
},
{
"categories" : [ {
"id" : "mens-accessories-ties",
"image" : "categories/mens-accessories-ties.png",
"name" : "Ties", "page_description" : "Shop Mens's Ties for all occasions including business or casual.",
"page_title" : "Men's Casual and Business Ties",
"parent_category_id" : "mens-accessories",
"c_showInMenu" : true
},
{
"id" : "mens-accessories-gloves",
"name" : "Gloves",
"page_description" : "Shop Men'sGloves. Versatile, commuter, boot, oxford, deer and resolve gloves. All with famous long-lasting quality.",
"page_title" : "Men's Gloves",
"parent_category_id" : "mens-accessories",
"c_showInMenu" : true
},
{
"id" : "mens-accessories-luggage",
"image" : "categories/mens-accessories-luggage.jpg",
"name" : "Luggage",
"page_description" : "Shop Men's Wheeled Luggage. Versatile, rugged suitcases, baggage, holdalls and shoulder bags. All with famous long-lasting quality.",
"page_title" : "Men's Wheeled Luggage",
"parent_category_id" : "mens-accessories",
"c_showInMenu" : true
} ],
"id" : "mens-accessories",
"name" : "Accessories",
"page_description" : "Shop mens accessories including belts, wallets. gloves, hats, watches, luggage & more.",
"page_title" : "Men's Accessories Belts, Wallets. Gloves, Hats, Watches, Luggage & More",
"parent_category_id" : "mens",
"c_showInMenu" : true
} ],
"id" : "mens",
"name" : "Mens",
"page_description" : "Men's range. Hard-wearing boots, jackets and clothing for unbeatable comfort day in, day out. Practical, easy-to-wear styles wherever you're headed.",
"page_title" : "Men's Footwear, Outerwear, Clothing & Accessories",
"parent_category_id" : "root",
"c_showInMenu" : true
}и NodeJS у меня есть ->
exports.index = function(req, res) {
\t var _ = require("underscore");
\t // var parseSchema = require('mongodb-schema');
\t var mdbClient = require('mongodb').MongoClient;
mdbClient.connect("mongodb://localhost:27017/shop", function(err, db) {
\t \t var collection = db.collection('categories');
\t \t collection.find().toArray(function(err, items) {
\t \t \t res.render("index", {
\t \t \t // \t // Underscore.js lib
\t \t \t \t _ : _,
\t \t \t \t
\t \t \t // \t // Template data
title : "Hello World!",
\t \t \t \t items : items
\t \t \t });
\t \t \t db.close();
\t \t });
});
\t console.dir("Called findOne!");
};мне нужно установить переменные:
Var категории = // аль л категории, например: мужские, женские
вар Подкатегории = // Все подкатегорий, например: Одежда и т.д.
Что такое правильный метод для достижения каждой переменной?
Спасибо!
спасибо! Это способствовало другой части, но не помогло в класть все содержание того, что мне нужно Это мой код, чтобы получить все категории и аналогичный для подкатегорий, но мне нужно, чтобы сделать его более надежным collection.find () .toArray (функция (ERR, элементы) { \t \t \t items.forEach (функция (пункт, индекс) { \t \t \t \t категория [индекс] = { \t \t \t \t \t ID: item-id, \t \t \t \t \t Название: item.name, \t \t \t \t \t изображения: item.image, \t \t \t \t \t page_desc: item.page_description, \t \t \t \t \t page_title: item.page_title \t \t \t \t} \t \t \t}); \t \t}); –
для подкатегорий: collection.find(). ToArray (функция (err, items) { \t \t items.Foreach (функция (пункт, index_x) { \t \t \t item.categories.forEach (функция (подп, index_y) { \t \t \t \t подкатегорию [index_x [index_y]] = subItem.name; \t \t \t \t \t}) \t \t \t}); –
M рад, что это помогло !!!!!!! –