/**
* Clears the migrations table and then rebuilds it.
*
* @uses MpmListHelper::mergeFilesWithDb()
* @uses MpmDbHelper::doSingleRowSelect()
*
* @return void
*/
public function reloadMigrations()
{
if ($this->dryrun) {
echo "No clear out existing migration data for dry-run.\n";
} else {
$db_config = MpmDbHelper::get_db_config();
$migrations_table = $db_config->migrations_table;
echo 'Clearing out existing migration data... ';
$this->dbObj->internal_exec('TRUNCATE TABLE `' . $migrations_table . '`');
echo 'done.', "\n\n", 'Rebuilding migration data... ';
MpmListHelper::mergeFilesWithDb();
echo 'done.', "\n";
if ($this->initialMigrationTimestamp != null) {
echo "\n", 'Updating initial migration timestamp to ', $this->initialMigrationTimestamp, '... ';
$result = MpmDbHelper::doSingleRowSelect('SELECT COUNT(*) AS total FROM `' . $migrations_table . '` WHERE `timestamp` = "' . $this->initialMigrationTimestamp . '"', $this->dbObj);
if ($result->total == 1) {
$this->dbObj->internal_exec('UPDATE `' . $migrations_table . '` SET `is_current` = 0');
$this->dbObj->internal_exec('UPDATE `' . $migrations_table . '` SET `is_current` = 1 WHERE `timestamp` = "' . $this->initialMigrationTimestamp . '"');
$this->dbObj->internal_exec('UPDATE `' . $migrations_table . '` SET `active` = 1 WHERE `timestamp` <= "' . $this->initialMigrationTimestamp . '"');
}
echo 'done.', "\n";
}
}
}
