rhymix/classes/db/queryparts/table/MysqlTableWithHint.class.php
2011-10-03 17:35:25 +00:00

36 lines
No EOL
1.6 KiB
PHP

<?php
class MysqlTableWithHint extends Table {
var $name;
var $alias;
var $index_hints_list;
function MysqlTableWithHint($name, $alias = NULL, $index_hints_list){
parent::Table($name, $alias);
$this->index_hints_list = $index_hints_list;
}
function toString(){
$result = parent::toString();
$use_index_hint = ''; $force_index_hint = ''; $ignore_index_hint = '';
foreach($this->index_hints_list as $index_hint){
$index_hint_type = $index_hint->getIndexHintType();
if($index_hint_type == 'USE') $use_index_hint .= $index_hint->getIndexName() . ', ';
else if($index_hint_type == 'FORCE') $force_index_hint .= $index_hint->getIndexName() . ', ';
else if($index_hint_type == 'IGNORE') $ignore_index_hint .= $index_hint->getIndexName() . ', ';
}
if($use_index_hint != ''){
$result .= ' USE INDEX (' . substr($use_index_hint, 0, -2) . ') ';
}
if($force_index_hint != ''){
$result .= ' FORCE INDEX (' . substr($force_index_hint, 0, -2) . ') ';
}
if($ignore_index_hint != ''){
$result .= ' IGNORE INDEX (' . substr($ignore_index_hint, 0, -2) . ') ';
}
return $result;
}
}
?>