silvie/database/index.js

Typescript Back-end Framework

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = exports.Database = void 0;
var _drivers = _interopRequireDefault(require("./driver/drivers"));
var _log = _interopRequireDefault(require("../utils/log"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == typeof i ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != typeof t || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != typeof i) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
const config = process.configs.database;
class Database {
  get driver() {
    if (this.privDriver) {
      return this.privDriver;
    }
    throw new Error('Database is not initialized');
  }

  /**
   * [SINGLETON] Disable the constructor
   * @private
   */
  // eslint-disable-next-line no-empty-function,no-useless-constructor,@typescript-eslint/no-empty-function
  constructor() {
    /**
     * The database driver instance
     * @private
     */
    _defineProperty(this, "privDriver", void 0);
  }

  /**
   * [SINGLETON] Creates a new or returns the existing database instance
   */
  static getInstance() {
    if (!Database.instance) {
      Database.instance = new Database();
    }
    return Database.instance;
  }

  /**
   * Initializes a database driver based on the given config
   */
  init(instanceCallback) {
    const type = config.type || process.env.DB_TYPE;
    if (type in _drivers.default) {
      var _config$type;
      this.privDriver = new _drivers.default[type]({
        host: config.host || process.env.DB_HOST,
        port: config.port || process.env.DB_PORT,
        database: config.database || process.env.DB_DATABASE,
        username: config.username || process.env.DB_USERNAME,
        password: config.password || process.env.DB_PASSWORD,
        ...((_config$type = config[type]) !== null && _config$type !== void 0 ? _config$type : {})
      }, instanceCallback);
    } else {
      _log.default.error('Invalid Driver', `'${type}' is not a valid database driver`);
    }
  }
  select(queryBuilder) {
    return this.driver.select(queryBuilder);
  }
  exists(queryBuilder) {
    return this.driver.exists(queryBuilder);
  }
  count(queryBuilder) {
    return this.driver.count(queryBuilder);
  }
  average(queryBuilder, column) {
    return this.driver.average(queryBuilder, column);
  }
  sum(queryBuilder, column) {
    return this.driver.sum(queryBuilder, column);
  }
  min(queryBuilder, column) {
    return this.driver.min(queryBuilder, column);
  }
  max(queryBuilder, column) {
    return this.driver.max(queryBuilder, column);
  }
  insert(queryBuilder) {
    return this.driver.insert(queryBuilder);
  }
  update(queryBuilder) {
    return this.driver.update(queryBuilder);
  }
  bulkUpdate(queryBuilder) {
    return this.driver.bulkUpdate(queryBuilder);
  }
  delete(queryBuilder) {
    return this.driver.delete(queryBuilder);
  }
  softDelete(queryBuilder) {
    return this.driver.softDelete(queryBuilder);
  }
  restore(queryBuilder) {
    return this.driver.restore(queryBuilder);
  }
  raw(query, params) {
    return this.driver.execute(query, params);
  }

  /**
   * Creates a table from the given table instance
   * @param table
   */
  createTable(table) {
    return this.driver.createTable(table);
  }

  /**
   * Creates a table from the given table instance
   * @param table
   */
  updateTable(table) {
    return this.driver.updateTable(table);
  }

  /**
   * Empties a table
   * @param tableName
   */
  truncateTable(tableName) {
    return this.driver.truncateTable(tableName);
  }

  /**
   * Drops a table without any further checks
   * @param tableName
   */
  dropTable(tableName) {
    return this.driver.dropTable(tableName);
  }

  /**
   * Drops a table if it exists
   * @param tableName
   */
  dropTableIfExists(tableName) {
    return this.driver.dropTableIfExists(tableName);
  }

  /**
   * Specify weather to check for foreign keys or not
   */
  checkForeignKeys(state) {
    return this.driver.setForeignKeyChecks(state);
  }

  /**
   * This will enable foreign key checks
   */
  enableForeignKeyChecks() {
    return this.checkForeignKeys(true);
  }

  /**
   * This will disable foreign key checks
   */
  disableForeignKeyChecks() {
    return this.checkForeignKeys(false);
  }

  /**
   * Closes the current database connection
   */
  closeConnection() {
    this.driver.closeConnection();
  }
}
exports.Database = Database;
/**
 * [SINGLETON] The database instance
 * @private
 */
_defineProperty(Database, "instance", void 0);
var _default = exports.default = Database.getInstance();