Method loadHistory

/**
 * Method to load a row for editing from the version history table.
 *
 * @param   integer  $versionId  Key to the version history table.
 * @param   Table    $table      Content table object being loaded.
 *
 * @return  boolean  False on failure or error, true otherwise.
 *
 * @since   4.0.0
 */
public function loadHistory($versionId, Table &$table)
{
    // Only attempt to check the row in if it exists, otherwise do an early exit.
    if (!$versionId) {
        return false;
    }
    // Get an instance of the row to checkout.
    $historyTable = Table::getInstance('Contenthistory');
    if (!$historyTable->load($versionId)) {
        $this->setError($historyTable->getError());
        return false;
    }
    $typeAlias = explode('.', $historyTable->item_id);
    array_pop($typeAlias);
    $rowArray = ArrayHelper::fromObject(json_decode($historyTable->version_data));
    $key = $table->getKeyName();
    if (implode('.', $typeAlias) != $this->typeAlias) {
        $this->setError(Text::_('JLIB_APPLICATION_ERROR_HISTORY_ID_MISMATCH'));
        if (isset($rowArray[$key])) {
            $table->checkIn($rowArray[$key]);
        }
        return false;
    }
    $this->setState('save_date', $historyTable->save_date);
    $this->setState('version_note', $historyTable->version_note);
    /**
     * Load data from current version before replacing it with data from history to avoid error
     * if there are some required keys missing in the history data
     */
    if (isset($rowArray[$key])) {
        $table->load($rowArray[$key]);
    }
    return $table->bind($rowArray);
}