Реалізація інформаційного та програмного забезпечення

В рамках проекту розробляється:

SQL-скрипт для створення на початкового наповнення бази даних

-- MySQL Workbench Forward Engineering

SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0;
SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0;
SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION';

-- -----------------------------------------------------
-- Schema survey-db
-- -----------------------------------------------------
DROP SCHEMA IF EXISTS `survey-db` ;

-- -----------------------------------------------------
-- Schema survey-db
-- -----------------------------------------------------
CREATE SCHEMA IF NOT EXISTS `survey-db` DEFAULT CHARACTER SET utf8 ;
USE `survey-db` ;

-- -----------------------------------------------------
-- Table `survey-db`.`users`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `survey-db`.`users` ;

CREATE TABLE IF NOT EXISTS `survey-db`.`users` (
  `id` INT NOT NULL AUTO_INCREMENT,
  `username` VARCHAR(45) NOT NULL,
  `email` VARCHAR(45) NOT NULL,
  `password` VARCHAR(45) NOT NULL,
  PRIMARY KEY (`id`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `survey-db`.`experts`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `survey-db`.`experts` ;

CREATE TABLE IF NOT EXISTS `survey-db`.`experts` (
  `id` INT NOT NULL AUTO_INCREMENT,
  `username` VARCHAR(45) NOT NULL,
  `email` VARCHAR(45) NOT NULL,
  `password` VARCHAR(45) NOT NULL,
  `job` VARCHAR(45) NOT NULL,
  `users_id` INT NOT NULL,
  PRIMARY KEY (`id`),
  INDEX `fk_experts_users_idx` (`users_id` ASC) VISIBLE,
  CONSTRAINT `fk_experts_users`
    FOREIGN KEY (`users_id`)
    REFERENCES `survey-db`.`users` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `survey-db`.`quizes`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `survey-db`.`quizes` ;

CREATE TABLE IF NOT EXISTS `survey-db`.`quizes` (
  `id` INT NOT NULL AUTO_INCREMENT,
  `text` VARCHAR(45) NULL,
  `expiration_date` DATETIME NOT NULL,
  `users_id` INT NOT NULL,
  PRIMARY KEY (`id`),
  INDEX `fk_quiz_users1_idx` (`users_id` ASC) VISIBLE,
  CONSTRAINT `fk_quiz_users1`
    FOREIGN KEY (`users_id`)
    REFERENCES `survey-db`.`users` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `survey-db`.`questions`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `survey-db`.`questions` ;

CREATE TABLE IF NOT EXISTS `survey-db`.`questions` (
  `id` INT NOT NULL AUTO_INCREMENT,
  `text` VARCHAR(45) NOT NULL,
  `type` INT NOT NULL,
  `quiz_id` INT NOT NULL,
  PRIMARY KEY (`id`),
  INDEX `fk_questions_quiz1_idx` (`quiz_id` ASC) VISIBLE,
  CONSTRAINT `fk_questions_quiz1`
    FOREIGN KEY (`quiz_id`)
    REFERENCES `survey-db`.`quizes` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `survey-db`.`options`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `survey-db`.`options` ;

CREATE TABLE IF NOT EXISTS `survey-db`.`options` (
  `id` INT NOT NULL AUTO_INCREMENT,
  `text` VARCHAR(45) NOT NULL,
  `questions_id` INT NOT NULL,
  `isCorrect` TINYINT NULL,
  PRIMARY KEY (`id`),
  INDEX `fk_answers_questions1_idx` (`questions_id` ASC) VISIBLE,
  CONSTRAINT `fk_answers_questions1`
    FOREIGN KEY (`questions_id`)
    REFERENCES `survey-db`.`questions` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `survey-db`.` options`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `survey-db`.` options` ;

CREATE TABLE IF NOT EXISTS `survey-db`.` options` (
  `id` INT NOT NULL AUTO_INCREMENT,
  `text` VARCHAR(45) NOT NULL,
  PRIMARY KEY (`id`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `survey-db`.`selected_options`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `survey-db`.`selected_options` ;

CREATE TABLE IF NOT EXISTS `survey-db`.`selected_options` (
  `id` INT NOT NULL AUTO_INCREMENT,
  ` options_id` INT NOT NULL,
  PRIMARY KEY (`id`),
  INDEX `fk_selected_options_ options1_idx` (` options_id` ASC) VISIBLE,
  CONSTRAINT `fk_selected_options_ options1`
    FOREIGN KEY (` options_id`)
    REFERENCES `survey-db`.` options` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `survey-db`.`users_has_quiz`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `survey-db`.`users_has_quiz` ;

CREATE TABLE IF NOT EXISTS `survey-db`.`users_has_quiz` (
  `users_id` INT NOT NULL,
  `quiz_id` INT NOT NULL,
  PRIMARY KEY (`users_id`, `quiz_id`),
  INDEX `fk_users_has_quiz_quiz1_idx` (`quiz_id` ASC) VISIBLE,
  INDEX `fk_users_has_quiz_users1_idx` (`users_id` ASC) VISIBLE,
  CONSTRAINT `fk_users_has_quiz_users1`
    FOREIGN KEY (`users_id`)
    REFERENCES `survey-db`.`users` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_users_has_quiz_quiz1`
    FOREIGN KEY (`quiz_id`)
    REFERENCES `survey-db`.`quizes` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `survey-db`.`users_has_quiz1`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `survey-db`.`users_has_quiz1` ;

CREATE TABLE IF NOT EXISTS `survey-db`.`users_has_quiz1` (
  `users_id` INT NOT NULL,
  `quiz_id` INT NOT NULL,
  PRIMARY KEY (`users_id`, `quiz_id`),
  INDEX `fk_users_has_quiz1_quiz1_idx` (`quiz_id` ASC) VISIBLE,
  INDEX `fk_users_has_quiz1_users1_idx` (`users_id` ASC) VISIBLE,
  CONSTRAINT `fk_users_has_quiz1_users1`
    FOREIGN KEY (`users_id`)
    REFERENCES `survey-db`.`users` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_users_has_quiz1_quiz1`
    FOREIGN KEY (`quiz_id`)
    REFERENCES `survey-db`.`quizes` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `survey-db`.`quiz_states`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `survey-db`.`quiz_states` ;

CREATE TABLE IF NOT EXISTS `survey-db`.`quiz_states` (
  `id` INT NOT NULL AUTO_INCREMENT,
  `state_name` VARCHAR(45) NOT NULL,
  PRIMARY KEY (`id`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `survey-db`.`quiz_actions`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `survey-db`.`quiz_actions` ;

CREATE TABLE IF NOT EXISTS `survey-db`.`quiz_actions` (
  `id` INT NOT NULL AUTO_INCREMENT,
  `at` DATETIME NOT NULL,
  `quizes_id` INT NOT NULL,
  `quiz_states_id` INT NOT NULL,
  PRIMARY KEY (`id`),
  INDEX `fk_quiz_states_quizes1_idx` (`quizes_id` ASC) VISIBLE,
  INDEX `fk_quiz_actions_quiz_states1_idx` (`quiz_states_id` ASC) VISIBLE,
  CONSTRAINT `fk_quiz_states_quizes1`
    FOREIGN KEY (`quizes_id`)
    REFERENCES `survey-db`.`quizes` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_quiz_actions_quiz_states1`
    FOREIGN KEY (`quiz_states_id`)
    REFERENCES `survey-db`.`quiz_states` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `survey-db`.`results`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `survey-db`.`results` ;

CREATE TABLE IF NOT EXISTS `survey-db`.`results` (
  `id` INT NOT NULL,
  `options_id` INT NOT NULL,
  `experts_id` INT NOT NULL,
  PRIMARY KEY (`id`),
  INDEX `fk_results_answers1_idx` (`options_id` ASC) VISIBLE,
  INDEX `fk_results_experts1_idx` (`experts_id` ASC) VISIBLE,
  CONSTRAINT `fk_results_answers1`
    FOREIGN KEY (`options_id`)
    REFERENCES `survey-db`.`options` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_results_experts1`
    FOREIGN KEY (`experts_id`)
    REFERENCES `survey-db`.`experts` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `survey-db`.`experts_has_results`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `survey-db`.`experts_has_results` ;

CREATE TABLE IF NOT EXISTS `survey-db`.`experts_has_results` (
  `experts_id` INT NOT NULL,
  `results_id` INT NOT NULL,
  PRIMARY KEY (`experts_id`, `results_id`),
  INDEX `fk_experts_has_results_results1_idx` (`results_id` ASC) VISIBLE,
  INDEX `fk_experts_has_results_experts1_idx` (`experts_id` ASC) VISIBLE,
  CONSTRAINT `fk_experts_has_results_experts1`
    FOREIGN KEY (`experts_id`)
    REFERENCES `survey-db`.`experts` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_experts_has_results_results1`
    FOREIGN KEY (`results_id`)
    REFERENCES `survey-db`.`results` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `survey-db`.`results_has_experts`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `survey-db`.`results_has_experts` ;

CREATE TABLE IF NOT EXISTS `survey-db`.`results_has_experts` (
  `results_id` INT NOT NULL,
  `experts_id` INT NOT NULL,
  PRIMARY KEY (`results_id`, `experts_id`),
  INDEX `fk_results_has_experts_experts1_idx` (`experts_id` ASC) VISIBLE,
  INDEX `fk_results_has_experts_results1_idx` (`results_id` ASC) VISIBLE,
  CONSTRAINT `fk_results_has_experts_results1`
    FOREIGN KEY (`results_id`)
    REFERENCES `survey-db`.`results` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_results_has_experts_experts1`
    FOREIGN KEY (`experts_id`)
    REFERENCES `survey-db`.`experts` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `survey-db`.`experts_has_results1`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `survey-db`.`experts_has_results1` ;

CREATE TABLE IF NOT EXISTS `survey-db`.`experts_has_results1` (
  `experts_id` INT NOT NULL,
  `results_id` INT NOT NULL,
  PRIMARY KEY (`experts_id`, `results_id`),
  INDEX `fk_experts_has_results1_results1_idx` (`results_id` ASC) VISIBLE,
  INDEX `fk_experts_has_results1_experts1_idx` (`experts_id` ASC) VISIBLE,
  CONSTRAINT `fk_experts_has_results1_experts1`
    FOREIGN KEY (`experts_id`)
    REFERENCES `survey-db`.`experts` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_experts_has_results1_results1`
    FOREIGN KEY (`results_id`)
    REFERENCES `survey-db`.`results` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


SET SQL_MODE=@OLD_SQL_MODE;
SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS;
SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS;

RESTfull сервіс для управління даними

Вхідна точка проєкту:

'use strict';

const express = require('express');
const { Pool } = require('./db/pool.js');
const { getQuizStatus, getAllQuizStatuses, createQuizStatus, deleteQuizStatus, updateQuizStatus } = require('./controller/controllers.js')

const app = express();
const jsonParse = express.json();

app.get('/quiz_state/:id', getQuizStatus);
app.get('/quiz_states/', getAllQuizStatuses);
app.post('/quiz_state/', jsonParse, createQuizStatus);
app.put('/quiz_state/:id', jsonParse,  updateQuizStatus);
app.delete('/quiz_state/:id', deleteQuizStatus);

app.listen(3000);

Підключення до бази даних:

'use strict';

const mysql = require('mysql2');

const Pool = mysql.createConnection({
  host: "localhost",
  user: "root",
  password: "qwertyui",
  database: "surveydb"
});

module.exports = { Pool };

Контролери:

'use strict';

const { Pool } = require('../db/pool.js');

const getQuizStatus = (req, res) => {
  const sql = `SELECT * FROM surveydb.quiz_states WHERE id = ${req.params.id}`
  Pool.query(sql, (error, result, fields) => {
    if (error) return res.status(500).json(error);
    result ? res.send(result) : res.sendStatus(404);
  });
};

const getAllQuizStatuses = (req, res) => {
  const sql = 'SELECT * from surveydb.quiz_states';
  Pool.query(sql, (error, result, fields) => {
    if (error) return res.status(500).json(error);
    result ? res.send(result) : res.sendStatus(404)
  });
};

const createQuizStatus = (req, res) => {
  if (!req.body) return res.sendStatus(400);
    const sql = `INSERT INTO surveydb.quiz_states (id, state_name) VALUES (${null},\"${req.body.state_name}\")`;
    Pool.query(sql, (error, result, fields) => {
      if (error) return res.status(500).json(error);
      result ? res.send(result) : res.sendStatus(404);
    });
};

const deleteQuizStatus = (req, res) => {
  const sql = `DELETE FROM surveydb.quiz_states WHERE id = ${req.params.id}`
  Pool.query(sql, (error, result, fields) => {
    if (error) return res.status(500).json(error);
    result ? res.send(result) : res.sendStatus(404);
  });
};

const updateQuizStatus = (req, res) => {
  if (!req.body) return res.sendStatus(400);
  const sql = `UPDATE surveydb.quiz_states SET state_name = \"${req.body.state_name}\" WHERE id = ${req.params.id} `
  Pool.query(sql, (err, result, fields) => {
    if (err) throw err;
    result ? res.send(result) : res.sendStatus(404);
  });   
};

module.exports = { getQuizStatus, getAllQuizStatuses, createQuizStatus, deleteQuizStatus, updateQuizStatus };