/**
Initialises a mysql prepared statement.
@param $oDb The mysql link resource.
@param $sQuery The query.
@throw InvalidArgumentException The database is not an instance of weeMySQLDatabase nor weeMySQLiDatabase.
*/
public function __construct(weeDatabase $oDb, $rLink, $sQuery)
{
is_resource($rLink) && get_resource_type($rLink) == 'mysql link' or burn('InvalidArgumentException', sprintf(_WT('The given variable must be a resource of type "%s".'), 'mysql link'));
$oDb->is('mysql') or burn('InvalidArgumentException', _WT('The underlying DBMS of the given database is not handled by this class.'));
preg_match_all('/:([\\w_]+)/', $sQuery, $aMatches, PREG_OFFSET_CAPTURE);
$s = '';
$iOffset = 0;
foreach ($aMatches[1] as $aMatch) {
$this->aParametersMap[] = $aMatch[0];
$s .= substr($sQuery, $iOffset, $aMatch[1] - $iOffset - 1) . '?';
$iOffset = $aMatch[1] + strlen($aMatch[0]);
}
$s .= substr($sQuery, $iOffset);
$this->sStatementName = 'st_' . md5($sQuery);
$this->oDb = $oDb;
$this->rLink = $rLink;
$s = 'PREPARE ' . $this->sStatementName . ' FROM ' . $this->oDb->escape($s);
mysql_unbuffered_query($s, $this->rLink) !== false or burn('DatabaseException', sprintf(_WT("Failed to prepare the query with the following error:\n%s"), mysql_error($this->rLink)));
}
/**
Initializes a new database meta.
@param $oDb The database to query.
@throw InvalidArgumentException The underlying DBMS of the given database is not handled by the class.
*/
public function __construct(weeDatabase $oDb)
{
$this->mDBMS !== null or burn('IllegalStateException', sprintf(_WT('The property $%s must not be empty.'), 'mDBMS'));
is_string($this->mDBMS) ? $oDb->is($this->mDBMS) : in_array($oDb->is(), $this->mDBMS) or burn('InvalidArgumentException', _WT('The underlying DBMS of the given database is not handled by this class.'));
$this->oDb = $oDb;
}