/**
*
* Alters the table based on $this->col and $this->idx.
*
* @access public
*
* @return mixed Boolean true if altering was successful or a PEAR_Error on
* failure.
*
* @see DB_Table_Manager::alter()
*
*/
function alter()
{
$create = false;
// alter the table columns and indexes if the table exists
$table_exists = DB_Table_Manager::tableExists($this->db, $this->table);
if (PEAR::isError($table_exists)) {
return $table_exists;
}
if (!$table_exists) {
// table does not exist => just create the table, there is
// nothing that could be altered
$create = true;
}
if ($create) {
return DB_Table_Manager::create($this->db, $this->table, $this->col, $this->idx);
}
return DB_Table_Manager::alter($this->db, $this->table, $this->col, $this->idx);
}
