Function createTransaction

src/js/libraries/localbase.js:1761–1789

(dbInfo, mode, callback, retries)

// FF doesn't like Promises (micro-tasks) and IDDB store operations,
// so we have to do it with callbacks
function createTransaction(dbInfo, mode, callback, retries) {
    if (retries === undefined) {
        retries = 1;
    }

    try {
        var tx = dbInfo.db.transaction(dbInfo.storeName, mode);
        callback(null, tx);
    } catch (err) {
        if (retries > 0 && (!dbInfo.db || err.name === 'InvalidStateError' || err.name === 'NotFoundError')) {
            return Promise$1.resolve().then(function () {
                if (!dbInfo.db || err.name === 'NotFoundError' && !dbInfo.db.objectStoreNames.contains(dbInfo.storeName) && dbInfo.version <= dbInfo.db.version) {
                    // increase the db version, to create the new ObjectStore
                    if (dbInfo.db) {
                        dbInfo.version = dbInfo.db.version + 1;
                    }
                    // Reopen the database for upgrading.
                    return _getUpgradedConnection(dbInfo);
                }
            }).then(function () {
                return _tryReconnect(dbInfo).then(function () {
                    createTransaction(dbInfo, mode, callback, retries - 1);
                });
            })["catch"](callback);
        }

        callback(err);
    }
}

function createDbContext() {
    return {