Implement a database and an API for it (#2)
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Ajout de la base de données en Sqlite3 et des méthodes permettant de faire des actions sur la base de données. Co-authored-by: hugo.pradier2 <hugo.pradier2@etu.uca.fr> Co-authored-by: cofrizot <colin.frizot@etu.uca.fr> Co-authored-by: clfreville2 <clement.freville2@etu.uca.fr> Reviewed-on: #2 Reviewed-by: Clément FRÉVILLE <clement.freville2@etu.uca.fr> Co-authored-by: Hugo PRADIER <hugo.pradier2@etu.uca.fr> Co-committed-by: Hugo PRADIER <hugo.pradier2@etu.uca.fr>pull/5/head
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import fs from "fs";
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import sqlite3 from "sqlite3";
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const dbDirectory = "./src/db";
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const dbFilePath = `${dbDirectory}/database.db`;
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/* Fonction pour exécuter une requête sur la base de données */
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/* Fonction pour exécuter une requête de modification de la base de données (INSERT, UPDATE, DELETE) */
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export function runDB(
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db: sqlite3.Database,
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query: string,
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params: any[]
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): Promise<void> {
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return new Promise((resolve, reject) => {
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db.run(query, params, (err) => {
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if (err) {
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reject(err);
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} else {
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resolve();
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}
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});
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});
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}
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/* Fonction pour récupérer plusieurs lignes de la base de données */
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export function allDB<T>(
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db: sqlite3.Database,
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query: string
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): Promise<unknown[]> {
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return new Promise((resolve, reject) => {
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db.all(query, (err, rows) => {
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if (err) {
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reject(err);
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} else {
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resolve(rows);
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}
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});
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});
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}
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/* Fonction pour récupérer une seule ligne de la base de données */
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export function getDB<T>(
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db: sqlite3.Database,
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query: string,
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params: any[]
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): Promise<T[]> {
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return new Promise((resolve, reject) => {
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db.get(query, params, (err, row: any) => {
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if (err) {
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reject(err);
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} else {
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resolve(row);
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}
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});
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});
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}
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/* Fonctions pour la gestion de la base de données */
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/* Créer le répertoire db s'il n'existe pas */
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export function createDbDirectory() {
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if (!fs.existsSync(dbDirectory)) {
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fs.mkdirSync(dbDirectory);
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}
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}
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/* Ouvrir la base de données */
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export function openDatabase() {
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console.log("Ouverture de la connexion à la base de données.");
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return new sqlite3.Database(
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dbFilePath,
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sqlite3.OPEN_READWRITE | sqlite3.OPEN_CREATE,
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(err: Error | null) => {
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if (err) console.error(err.message);
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}
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);
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}
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/* Fermer la base de données */
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export function closeDatabase(db: sqlite3.Database) {
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db.close((err) => {
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if (err) {
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console.error(err.message);
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}
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console.log("Fermeture de la connexion à la base de données.");
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});
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}
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/* Create all the tables in the database */
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export function createTables(db: sqlite3.Database) {
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createRegisteredUserTable(db);
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createLanguageTable(db);
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createWorkTable(db);
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}
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/////////////////////////// Gestion des utilisateurs ///////////////////////////
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// CREATE TABLE registered_user (
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// id_user SERIAL PRIMARY KEY,
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// login VARCHAR(64) NOT NULL,
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// password VARCHAR(72) NOT NULL,
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// permissions INT NOT NULL,
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// UNIQUE (login)
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// );
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/* Créer la table registered_user dans la base de données */
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export function createRegisteredUserTable(db: sqlite3.Database): Promise<void> {
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const tableRegisteredUser = `CREATE TABLE IF NOT EXISTS registered_user (id_user INTEGER PRIMARY KEY AUTOINCREMENT, login TEXT NOT NULL, password TEXT NOT NULL, permissions INTEGER NOT NULL, UNIQUE (login))`;
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return runDB(db, tableRegisteredUser, []);
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}
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/* Insérer un utilisateur dans la table registered_user */
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export function insertUser(
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db: sqlite3.Database,
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login: string,
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password: string,
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permissions: number
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) {
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const insertUserQuery = `INSERT INTO registered_user (login, password, permissions) VALUES (?, ?, ?)`;
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return runDB(db, insertUserQuery, [login, password, permissions]);
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}
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/* Modifier le login d'un utilisateur dans la table registered_user */
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export function updateUserLogin(
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db: sqlite3.Database,
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id: number,
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newLogin: string
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) {
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const updateUserLoginQuery = `UPDATE registered_user SET login = ? WHERE id_user = ?`;
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return runDB(db, updateUserLoginQuery, [newLogin, id]);
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}
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/* Modifier le mot de passe d'un utilisateur dans la table registered_user */
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export function updateUserPassword(
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db: sqlite3.Database,
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id: number,
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newPassword: string
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) {
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const updateUserPasswordQuery = `UPDATE registered_user SET password = ? WHERE id_user = ?`;
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return runDB(db, updateUserPasswordQuery, [newPassword, id]);
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}
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/* Modifier les permissions d'un utilisateur dans la table registered_user */
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export function updateUserPermissions(
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db: sqlite3.Database,
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id: number,
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newPermissions: number
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) {
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const updateUserPermissionsQuery = `UPDATE registered_user SET permissions = ? WHERE id_user = ?`;
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return runDB(db, updateUserPermissionsQuery, [newPermissions, id]);
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}
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/* Supprimer un utilisateur de la table registered_user par son ID */
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export function deleteUserById(db: sqlite3.Database, id: number) {
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const deleteUserQuery = `DELETE FROM registered_user WHERE id_user = ?`;
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return runDB(db, deleteUserQuery, [id]);
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}
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/* Supprimer un utilisateur de la table registered_user par son login */
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export function deleteUserByLogin(db: sqlite3.Database, login: string) {
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const deleteUserQuery = `DELETE FROM registered_user WHERE login = ?`;
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return runDB(db, deleteUserQuery, [login]);
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}
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/* Supprimer tous les utilisateurs de la table registered_user */
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export function deleteAllUsers(db: sqlite3.Database) {
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const deleteAllUsersQuery = `DELETE FROM registered_user`;
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return runDB(db, deleteAllUsersQuery, []);
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}
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/* Sélectionner tous les utilisateurs de la table registered_user */
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export function selectAllUsers(db: sqlite3.Database): Promise<unknown[]> {
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const selectAllUsersQuery = `SELECT * FROM registered_user`;
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return allDB(db, selectAllUsersQuery);
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}
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/* Sélectionner un utilisateur par son login */
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export function selectUserByLogin(db: sqlite3.Database, login: string) {
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const selectUserByLoginQuery = `SELECT * FROM registered_user WHERE login = ?`;
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return getDB(db, selectUserByLoginQuery, [login]);
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}
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/* Sélectionner un utilisateur par son ID */
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export function selectUserById(db: sqlite3.Database, id: number) {
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const selectUserByIdQuery = `SELECT * FROM registered_user WHERE id_user = ?`;
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return getDB(db, selectUserByIdQuery, [id]);
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}
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/////////////////////////// Gestion des Languages ///////////////////////////
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// CREATE TABLE language (
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// id_language SERIAL PRIMARY KEY,
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// designation VARCHAR(30) NOT NULL,
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// version INT NOT NULL,
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// );
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/* Créer la table language dans la base de données */
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export function createLanguageTable(db: sqlite3.Database): Promise<void> {
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const tableLanguage = `CREATE TABLE IF NOT EXISTS language (id_language INTEGER PRIMARY KEY AUTOINCREMENT, designation TEXT NOT NULL, version INTEGER NOT NULL)`;
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return runDB(db, tableLanguage, []);
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}
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/* Insérer un language dans la table language */
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export function insertLanguage(
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db: sqlite3.Database,
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designation: string,
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version: number
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) {
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const insertLanguageQuery = `INSERT INTO language (designation, version) VALUES (?, ?)`;
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return runDB(db, insertLanguageQuery, [designation, version]);
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}
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/* Modifier la designation d'un language dans la table language */
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export function updateLanguageDesignation(
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db: sqlite3.Database,
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id: number,
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newDesignation: string
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) {
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const updateLanguageDesignationQuery = `UPDATE language SET designation = ? WHERE id_language = ?`;
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return runDB(db, updateLanguageDesignationQuery, [newDesignation, id]);
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}
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/* Modifier la version d'un language dans la table language */
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export function updateLanguageVersion(
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db: sqlite3.Database,
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id: number,
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newVersion: number
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) {
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const updateLanguageVersionQuery = `UPDATE language SET version = ? WHERE id_language = ?`;
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return runDB(db, updateLanguageVersionQuery, [newVersion, id]);
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}
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/* Supprimer un language de la table language par son ID */
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export function deleteLanguage(db: sqlite3.Database, id: number) {
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const deleteLanguageQuery = `DELETE FROM language WHERE id_language = ?`;
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return runDB(db, deleteLanguageQuery, [id]);
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}
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/* Supprimer tous les languages de la table language */
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export function deleteAllLanguages(db: sqlite3.Database) {
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const deleteAllLanguagesQuery = `DELETE FROM language`;
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return runDB(db, deleteAllLanguagesQuery, []);
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}
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/* Sélectionner tous les languages de la table language */
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export function selectAllLanguages(db: sqlite3.Database): Promise<unknown[]> {
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const selectAllLanguagesQuery = `SELECT * FROM language`;
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return allDB(db, selectAllLanguagesQuery);
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}
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/* Sélectionner un language par son ID */
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export function selectLanguageById(db: sqlite3.Database, id: number) {
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const selectLanguageByIdQuery = `SELECT * FROM language WHERE id_language = ?`;
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return getDB(db, selectLanguageByIdQuery, [id]);
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}
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/////////////////////////// Gestion des works ///////////////////////////
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// CREATE TABLE work (
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// id_work SERIAL PRIMARY KEY,
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// link CHAR(36) NOT NULL,
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// user_id INT REFERENCES registered_user(id_user),
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// language_id INT NOT NULL REFERENCES language(id_language)
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// content TEXT NOT NULL,
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// );
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/* Créer la table work dans la base de données */
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export function createWorkTable(db: sqlite3.Database): Promise<void> {
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const tableWork = `CREATE TABLE IF NOT EXISTS work (id_work INTEGER PRIMARY KEY AUTOINCREMENT, link CHAR(36) NOT NULL, user_id INTEGER REFERENCES registered_user(id_user), language_id INTEGER NOT NULL REFERENCES language(id_language), content TEXT NOT NULL)`;
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return runDB(db, tableWork, []);
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}
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/* Insérer un work dans la table work */
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export function insertWork(
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db: sqlite3.Database,
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link: string,
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user_id: number,
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language_id: number,
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content: string
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) {
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const insertWorkQuery = `INSERT INTO work (link, user_id, language_id, content) VALUES (?, ?, ?, ?)`;
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return runDB(db, insertWorkQuery, [link, user_id, language_id, content]);
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}
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/* Sélectionner tous les works de la table work */
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export function selectAllWorks(db: sqlite3.Database): Promise<unknown[]> {
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const selectAllWorksQuery = `SELECT * FROM work`;
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return allDB(db, selectAllWorksQuery);
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}
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/* Supprimer tous les works de la table work */
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export function deleteAllWorks(db: sqlite3.Database) {
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const deleteAllWorksQuery = `DELETE FROM work`;
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return runDB(db, deleteAllWorksQuery, []);
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}
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/* Supprimer un work de la table work */
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export function deleteWork(db: sqlite3.Database, id: number) {
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const deleteWorkQuery = `DELETE FROM work WHERE id_work = ?`;
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return runDB(db, deleteWorkQuery, [id]);
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}
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/* Sélectionner un work par son ID */
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export function selectWorkById(db: sqlite3.Database, id: number) {
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const selectWorkByIdQuery = `SELECT * FROM work WHERE id_work = ?`;
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return getDB(db, selectWorkByIdQuery, [id]);
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}
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