DpackGetData/util/db_oracle.js

var oracledb = require("oracledb");
var log = require("./log.js");
var util = require("./util.js");

var getPoolConnection = async function (config) {
  let pool;
  try {
    pool = await oracledb.createPool({
      user: config.user,
      password: config.password, // mypw contains the hr schema password
      connectString: `${config.ip_address}:${config.port}/${config.dbname}`,
      queueTimeout: 600000,
    });
  } catch (e) {
    pool.close();
    return e.message;
  } finally {
    if (pool) {
      return pool;
    }
  }
};

var getConnected = async function (config, sql, params) {
  let pool;
  let conn;
  var result;
  try {
    pool = await getPoolConnection(config);

    conn = await pool.getConnection();
    var changeTz = await conn.execute(
      `
            begin
            execute immediate 'alter session set time_zone=''UTC''';
            end;
        `,
      {}
    );

    data = await conn.execute(sql, params, { outFormat: oracledb.OBJECT });
    result = { STATUS: 1, DATA: data.rows };
  } catch (e) {
    result = { STATUS: 0, DATA: e.message };
    util.throwNotif(e.message);
    log.createLog(0, e.message);
  } finally {
    if (conn) {
      await conn.close();
    }
    if (pool) {
      await pool.close();
    }
    return result;
  }
};

var getConnectedInsert = async function (config, sql, params) {
  let pool;
  let conn;
  var result;
  try {
    pool = await getPoolConnection(config);

    conn = await pool.getConnection();
    var changeTz = await conn.execute(
      `
            begin
            execute immediate 'alter session set time_zone=''UTC''';
            end;
        `,
      {}
    );
    data = await conn.execute(sql, params, { outFormat: oracledb.OBJECT });
    await conn.commit();
    result = { STATUS: 1, DATA: data };
  } catch (e) {
    await conn.rollback();
    result = { STATUS: 0, DATA: e.message };
    log.createLog(0, e.message);
    util.throwNotif(e.message);
  } finally {
    if (conn) {
      await conn.close();
    }
    if (pool) {
      await pool.close();
    }
    return result;
  }
};

var getConnectedInsertMany = async function (config, sql, params) {
  let pool;
  let conn;
  var result;

  try {
    pool = await getPoolConnection(config);

    conn = await pool.getConnection();

    var changeTz = await conn.execute(
      `
            begin
            execute immediate 'alter session set time_zone=''UTC''';
            end;
        `,
      {}
    );

    data = await conn.executeMany(sql, params, { outFormat: oracledb.OBJECT });
    await conn.commit();
    result = { STATUS: 1, DATA: data };
  } catch (e) {
    await conn.rollback();
    result = { STATUS: 0, DATA: e };
  } finally {
    if (conn) {
      await conn.close();
    }
    if (pool) {
      await pool.close();
    }
    return result;
  }
};

module.exports.getConnected = getConnected;
module.exports.getConnectedInsert = getConnectedInsert;
module.exports.getConnectedInsertMany = getConnectedInsertMany;