knex/lib/dialects/mysql/transaction.js

'use strict';

var Transaction = require('../../transaction');
var assign = require('lodash/object/assign');
var inherits = require('inherits');
var debug = require('debug')('knex:tx');
var helpers = require('../../helpers');

function Transaction_MySQL() {
  Transaction.apply(this, arguments);
}
inherits(Transaction_MySQL, Transaction);

assign(Transaction_MySQL.prototype, {

  query: function query(conn, sql, status, value) {
    var t = this;
    var q = this.trxClient.query(conn, sql)['catch'](function (err) {
      return err.errno === 1305;
    }, function () {
      helpers.warn('Transaction was implicitly committed, do not mix transactions and DDL with MySQL (#805)');
    })['catch'](function (err) {
      status = 2;
      value = err;
      t._completed = true;
      debug('%s error running transaction query', t.txid);
    }).tap(function () {
      if (status === 1) t._resolver(value);
      if (status === 2) t._rejecter(value);
    });
    if (status === 1 || status === 2) {
      t._completed = true;
    }
    return q;
  }

});

module.exports = Transaction_MySQL;