sequelize/lib/dialects/sqlite/connection-manager.js

Sequelize is a promise-based Node.js ORM tool for Postgres, MySQL, MariaDB, SQLite, Microsoft SQL Server, Amazon Redshift and Snowflake’s Data Cloud. It features solid transaction support, relations, eager and lazy loading, read replication and more.

"use strict";
const fs = require("fs");
const path = require("path");
const AbstractConnectionManager = require("../abstract/connection-manager");
const { logger } = require("../../utils/logger");
const debug = logger.debugContext("connection:sqlite");
const dataTypes = require("../../data-types").sqlite;
const sequelizeErrors = require("../../errors");
const parserStore = require("../parserStore")("sqlite");
const { promisify } = require("util");
class ConnectionManager extends AbstractConnectionManager {
  constructor(dialect, sequelize) {
    super(dialect, sequelize);
    if (this.sequelize.options.host === "localhost") {
      delete this.sequelize.options.host;
    }
    this.connections = {};
    this.lib = this._loadDialectModule("sqlite3");
    this.refreshTypeParser(dataTypes);
  }
  async _onProcessExit() {
    await Promise.all(Object.getOwnPropertyNames(this.connections).map((connection) => promisify((callback) => this.connections[connection].close(callback))()));
    return super._onProcessExit.call(this);
  }
  _refreshTypeParser(dataType) {
    parserStore.refresh(dataType);
  }
  _clearTypeParser() {
    parserStore.clear();
  }
  async getConnection(options) {
    options = options || {};
    options.uuid = options.uuid || "default";
    if (!!this.sequelize.options.storage !== null && this.sequelize.options.storage !== void 0) {
      options.storage = this.sequelize.options.storage;
    } else {
      options.storage = this.sequelize.options.host || ":memory:";
    }
    options.inMemory = options.storage === ":memory:" ? 1 : 0;
    const dialectOptions = this.sequelize.options.dialectOptions;
    const defaultReadWriteMode = this.lib.OPEN_READWRITE | this.lib.OPEN_CREATE;
    options.readWriteMode = dialectOptions && dialectOptions.mode || defaultReadWriteMode;
    if (this.connections[options.inMemory || options.uuid]) {
      return this.connections[options.inMemory || options.uuid];
    }
    if (!options.inMemory && (options.readWriteMode & this.lib.OPEN_CREATE) !== 0) {
      fs.mkdirSync(path.dirname(options.storage), { recursive: true });
    }
    const connection = await new Promise((resolve, reject) => {
      this.connections[options.inMemory || options.uuid] = new this.lib.Database(options.storage, options.readWriteMode, (err) => {
        if (err)
          return reject(new sequelizeErrors.ConnectionError(err));
        debug(`connection acquired ${options.uuid}`);
        resolve(this.connections[options.inMemory || options.uuid]);
      });
    });
    if (this.sequelize.config.password) {
      connection.run(`PRAGMA KEY=${this.sequelize.escape(this.sequelize.config.password)}`);
    }
    if (this.sequelize.options.foreignKeys !== false) {
      connection.run("PRAGMA FOREIGN_KEYS=ON");
    }
    return connection;
  }
  releaseConnection(connection, force) {
    if (connection.filename === ":memory:" && force !== true)
      return;
    if (connection.uuid) {
      connection.close();
      debug(`connection released ${connection.uuid}`);
      delete this.connections[connection.uuid];
    }
  }
}
module.exports = ConnectionManager;
module.exports.ConnectionManager = ConnectionManager;
module.exports.default = ConnectionManager;
//# sourceMappingURL=connection-manager.js.map