.
*/
require_once 'propel/adapter/DBAdapter.php';
/**
* This is used to connect to PostgresQL databases.
*
* http://www.pgsql.org
*
* @author Hans Lellelid (Propel)
* @author Hakan Tandogan (Torque)
* @version $Revision: 536 $
* @package propel.adapter
*/
class DBPostgres extends DBAdapter {
/**
* This method is used to ignore case.
*
* @param string $in The string to transform to upper case.
* @return string The upper case string.
*/
public function toUpperCase($in)
{
return "UPPER(" . $in . ")";
}
/**
* This method is used to ignore case.
*
* @param in The string whose case to ignore.
* @return The string in a case that can be ignored.
*/
public function ignoreCase($in)
{
return "UPPER(" . $in . ")";
}
/**
* Returns SQL which concatenates the second string to the first.
*
* @param string String to concatenate.
* @param string String to append.
* @return string
*/
public function concatString($s1, $s2)
{
return "($s1 || $s2)";
}
/**
* Returns SQL which extracts a substring.
*
* @param string String to extract from.
* @param int Offset to start from.
* @param int Number of characters to extract.
* @return string
*/
public function subString($s, $pos, $len)
{
return "substring($s from $pos" . ($len > -1 ? "for $len" : "") . ")";
}
/**
* Returns SQL which calculates the length (in chars) of a string.
*
* @param string String to calculate length of.
* @return string
*/
public function strLength($s)
{
return "char_length($s)";
}
/**
* Locks the specified table.
*
* @param Connection $con The Creole connection to use.
* @param string $table The name of the table to lock.
* @exception SQLException No Statement could be created or executed.
*/
public function lockTable(Connection $con, $table)
{
}
/**
* Unlocks the specified table.
*
* @param Connection $con The Creole connection to use.
* @param string $table The name of the table to unlock.
* @exception SQLException No Statement could be created or executed.
*/
public function unlockTable(Connection $con, $table)
{
}
}