mirror of
https://github.com/DerTyp7/shop-ejs-expressjs.git
synced 2025-10-29 20:42:10 +01:00
added documentary
This commit is contained in:
j.mei7
154
mysql_handler.js
154
mysql_handler.js
@@ -1,5 +1,4 @@
|
||||
let mysql = require('mysql')
|
||||
let connected = false;
|
||||
const mysql = require('mysql')
|
||||
|
||||
// TODO check here for errors and do not let the db throw an error in order to give the user feedback
|
||||
|
||||
@@ -9,114 +8,107 @@ con.query("SELECT * FROM users", function(err, result){
|
||||
}
|
||||
console.log(result);
|
||||
});
|
||||
|
||||
*/
|
||||
let con = mysql.createConnection({
|
||||
|
||||
let con = mysql.createConnection({ // TODO: change to config file
|
||||
host: "localhost",
|
||||
user: "onlineshop",
|
||||
password: "TestUser321",
|
||||
password: "TestUser321", // TODO: DO NOT STORE PASSWORDS IN THE CODE
|
||||
database: "onlineshop"
|
||||
});
|
||||
|
||||
con.connect(function(err){
|
||||
con.connect(function(err){ // Connect to the database
|
||||
if(err) throw err;
|
||||
console.log("Connected to MySQL!");
|
||||
connected = true
|
||||
//createUser("dertyp", "address@email.com", "password", "Janis", "Meister", "Herr");
|
||||
//createAddress("street", "1", "postcode", "city", "country", 18)
|
||||
//createSeller("TEST", "test")
|
||||
//createProduct("name", 1.2, "description", 2, 2, 1, 1)
|
||||
//createReview("TESt", "Content", 6, 18, 1)
|
||||
//createOrder(18, "tasddadse");
|
||||
//createOrderProduct(1.5, 5, 1, 1)
|
||||
})
|
||||
|
||||
function isConnected(){
|
||||
if(connected){
|
||||
return true;
|
||||
}else{
|
||||
console.log("not connected to mysql")
|
||||
function isConnected(){
|
||||
// Check if database is connected
|
||||
if(con.state === 'disconnected'){
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
function sendQuery(sql){
|
||||
if(isConnected){
|
||||
con.query(sql, function(err, result){
|
||||
if(err){
|
||||
console.log(err);
|
||||
return false;
|
||||
}
|
||||
return result;
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
// CREATES
|
||||
function createOrder(userId, trackingnumber, received, productId, quantity){
|
||||
con.query(`INSERT INTO order_status(received, trackingnumber) VALUES (${received}, '${trackingnumber}')`, function(err, result){
|
||||
// Create Order database structure
|
||||
function createOrder(userId, trackingnumber, received, productId, quantity){ // TODO: add date
|
||||
// create order status
|
||||
con.query(`INSERT INTO order_status(received, trackingnumber) VALUES (${received}, '${trackingnumber}')`, (err, result) => {
|
||||
if(err) console.log(err);
|
||||
|
||||
con.query(`INSERT INTO orders(userId, order_statusId)
|
||||
VALUES ((SELECT id FROM users WHERE id='${userId}'), (SELECT id FROM order_status WHERE trackingnumber='${trackingnumber}'))`, function(err, result){
|
||||
// create order
|
||||
con.query(`INSERT INTO orders(userId, order_statusId) VALUES ((SELECT id FROM users WHERE id='${userId}'),
|
||||
(SELECT id FROM order_status WHERE trackingnumber='${trackingnumber}'))`, function(err, result){
|
||||
|
||||
// create order_product
|
||||
con.query(`SELECT orders.id FROM orders LEFT JOIN order_status ON orders.order_statusId=order_status.id WHERE order_status.trackingnumber='${order_trackingnumber}'`, function(err, result){
|
||||
if(err) console.log(err);
|
||||
order = JSON.parse(JSON.stringify(result))[0];
|
||||
order = JSON.parse(JSON.stringify(result))[0]; // parse result to json
|
||||
if(order != undefined){ // if order is not undefined
|
||||
con.query(`SELECT * FROM products WHERE id=${productId}`, (err, result) => { // get product
|
||||
if(err) console.log(err);
|
||||
|
||||
con.query(`SELECT * FROM products WHERE id=${productId}`, (err, result) => {
|
||||
if(err) console.log(err);
|
||||
product = JSON.parse(JSON.stringify(result))[0];
|
||||
|
||||
con.query(`UPDATE products SET quantity=quantity-${quantity} WHERE id=${productId}`, (err, result) => {
|
||||
con.query(`INSERT INTO order_products(price, quantity, productId, orderId)
|
||||
VALUES ('${product.price}','${quantity}',
|
||||
(SELECT id FROM products WHERE id='${product.id}'), (SELECT id FROM orders WHERE id='${order.id}'))`, (err, result) => {
|
||||
if(err) console.log(err);
|
||||
})
|
||||
})
|
||||
})
|
||||
})
|
||||
|
||||
})
|
||||
|
||||
})
|
||||
product = JSON.parse(JSON.stringify(result))[0]; // parse result to json
|
||||
|
||||
// update old product quantity
|
||||
con.query(`UPDATE products SET quantity=quantity-${quantity} WHERE id=${productId}`, (err, result) => {
|
||||
// create order_product
|
||||
con.query(`INSERT INTO order_products(price, quantity, productId, orderId)
|
||||
VALUES ('${product.price}','${quantity}',
|
||||
(SELECT id FROM products WHERE id='${product.id}'), (SELECT id FROM orders WHERE id='${order.id}'))`, (err, result) => {
|
||||
if(err) console.log(err);
|
||||
});
|
||||
});
|
||||
});
|
||||
}
|
||||
});
|
||||
});
|
||||
});
|
||||
}
|
||||
|
||||
function createReview(title, content, rating, userID, productId){
|
||||
sendQuery(`INSERT INTO reviews(title, content, rating, userID, productId)
|
||||
// Create Review
|
||||
function createReview(title, content, rating, userID, productId){ // TODO: add date
|
||||
con.query(`INSERT INTO reviews(title, content, rating, userID, productId)
|
||||
VALUES ('${title}','${content}','${rating}',
|
||||
(SELECT id FROM users WHERE id='${userID}'), (SELECT id FROM products WHERE id='${productId}'))`);
|
||||
|
||||
(SELECT id FROM users WHERE id='${userID}'), (SELECT id FROM products WHERE id='${productId}'))`, (err, result) => {
|
||||
if(err) console.log(err);
|
||||
});
|
||||
}
|
||||
|
||||
// Create Product
|
||||
function createProduct(name, price, description, quantity, delivery_time, sellerId, categoryId){
|
||||
sendQuery(`INSERT INTO products(name, price, description, quantity, delivery_time, sellerId, categoryId)
|
||||
VALUES ('${name}',${price},'${description}','${quantity}','${delivery_time}',
|
||||
(SELECT id FROM sellers WHERE id='${sellerId}'), (SELECT id FROM categories WHERE id='${categoryId}'))`);
|
||||
con.query(`INSERT INTO products(name, price, description, quantity, delivery_time, sellerId, categoryId)
|
||||
VALUES ('${name}',${price},'${description}','${quantity}','${delivery_time}',
|
||||
(SELECT id FROM sellers WHERE id='${sellerId}'), (SELECT id FROM categories WHERE id='${categoryId}'))`, (err, result) => {
|
||||
if(err) console.log(err);
|
||||
});
|
||||
}
|
||||
|
||||
function createCategory(name){
|
||||
sendQuery(`INSERT INTO categories(name) VALUES ('${name}')`);
|
||||
}
|
||||
|
||||
function createSeller(name, description){
|
||||
sendQuery(`INSERT INTO sellers(name, description) VALUES ('${name}', '${description}')`);
|
||||
}
|
||||
|
||||
function createUser(username, email, password, firstname, lastname, gender, street, housenumber, postcode, cityName, country){
|
||||
con.query(`INSERT INTO users(username, email, password) VALUES ('${username}','${email}','${password}')`, function(err, result){
|
||||
// Create User database structure
|
||||
function createUser(username, email, password, firstname, lastname, gender, street, housenumber, postcode, cityName, country){ // TODO: Better error handling if something goes wrong in progress
|
||||
// Create User
|
||||
con.query(`INSERT INTO users(username, email, password) VALUES ('${username}','${email}','${password}')`, (err, result) =>{
|
||||
if(err){
|
||||
console.log(err);
|
||||
}else if(result){
|
||||
sendQuery(`INSERT INTO userinfos(firstname, lastname, gender, userId) VALUES ('${firstname}','${lastname}','${gender}',
|
||||
(SELECT id FROM users WHERE username='${username}' AND email='${email}'))`);
|
||||
console.log(`User created: ${username}!`)
|
||||
|
||||
sendQuery(`INSERT INTO cities(name, postcode) VALUES ('${cityName}', '${postcode}')`);
|
||||
|
||||
sendQuery(`INSERT INTO addresses(street, housenumber, country, userId, cityId) VALUES ('${street}','${housenumber}','${country}',
|
||||
(SELECT id FROM users WHERE username='${username}'), (SELECT id FROM cities WHERE name='${cityName}' AND postcode='${postcode}'))`);
|
||||
// Create User Info
|
||||
con.query(`INSERT INTO userinfos(firstname, lastname, gender, userId) VALUES ('${firstname}','${lastname}','${gender}',
|
||||
(SELECT id FROM users WHERE username='${username}' AND email='${email}'))`, (err, result) => {
|
||||
if(err) console.log(err);
|
||||
});
|
||||
|
||||
// Create City
|
||||
con.query(`INSERT INTO cities(name, postcode) VALUES ('${cityName}', '${postcode}')`, (err, result) => {
|
||||
if(err) console.log(err);
|
||||
});
|
||||
|
||||
// Create Address
|
||||
con.query(`INSERT INTO addresses(street, housenumber, country, userId, cityId) VALUES ('${street}','${housenumber}','${country}',
|
||||
(SELECT id FROM users WHERE username='${username}'), (SELECT id FROM cities WHERE name='${cityName}' AND postcode='${postcode}'))`, (err, result) => {
|
||||
if(err) console.log(err);
|
||||
});
|
||||
|
||||
console.log(`User created: ${username}!`);
|
||||
}
|
||||
});
|
||||
}
|
||||
@@ -124,6 +116,6 @@ function createUser(username, email, password, firstname, lastname, gender, stre
|
||||
|
||||
|
||||
module.exports = {
|
||||
sendQuery, createOrder, createReview,
|
||||
createProduct, createCategory, createSeller, createUser, con
|
||||
createOrder, createReview, isConnected,
|
||||
createProduct, createUser, con
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user