zend db 多表查询 LIMIT BUG 解决方法

zend db 多表查询 LIMIT BUG 解决方法

将Zend/Db/Adapter/Pdo/mssql.php中 如下方法替换 。



public function limit($sql, $count, $offset = 0)
{
$count = intval($count);
if ($count <= 0) {
/** @see Zend_Db_Adapter_Exception */
require_once 'Zend/Db/Adapter/Exception.php';
throw new Zend_Db_Adapter_Exception("LIMIT argument count=$count is not valid");
}

$offset = intval($offset);
if ($offset < 0) {
/** @see Zend_Db_Adapter_Exception */
require_once 'Zend/Db/Adapter/Exception.php';
throw new Zend_Db_Adapter_Exception("LIMIT argument offset=$offset is not valid");
}

$sql = preg_replace(
'/^SELECT/s+(DISTINCT/s)?/i',
'SELECT $1TOP ' . ($count+$offset) . ' ',
$sql
);

if ($offset > 0) {
$orderby = stristr($sql, 'ORDER BY');
$mtype = stristr($sql, 'INNER JOIN');//多表分页判断2010-01-28

if ($orderby !== false) {
$orderParts = explode(',', substr($orderby, 8));
$pregReplaceCount = null;
$orderbyInverseParts = array();
$orderbyInverseParts2 = array();//
foreach ($orderParts as $orderPart) {
$orderPart = rtrim($orderPart);

//
if ($mtype!==false){
$inv2='"outer_tbl"'.stristr($orderPart, '.');
$orderbyInverseParts2[] = $inv2;
}
//

$inv = preg_replace('//s+desc$/i', ' ASC', $orderPart, 1, $pregReplaceCount);
if ($pregReplaceCount) {
//
if ($mtype!==false){
$inv='"inner_tbl"'.stristr($inv, '.');
}
//
$orderbyInverseParts[] = $inv;
continue;
}
$inv = preg_replace('//s+asc$/i', ' DESC', $orderPart, 1, $pregReplaceCount);
if ($pregReplaceCount) {
//
if ($mtype!==false){
$inv='"inner_tbl"'.stristr($inv, '.');
}
//
$orderbyInverseParts[] = $inv;
continue;
} else {
$orderbyInverseParts[] = $orderPart . ' DESC';
}
}

$orderbyInverse = 'ORDER BY ' . implode(', ', $orderbyInverseParts);
$orderbyInverse2 = 'ORDER BY ' . implode(', ', $orderbyInverseParts2);
}



$sql = 'SELECT * FROM (SELECT TOP ' . $count . ' * FROM (' . $sql . ') AS inner_tbl';
if ($orderby !== false) {


$sql .= ' ' . $orderbyInverse . ' ';

}
$sql .= ') AS outer_tbl';
if ($orderby !== false) {
//
if ($mtype!== false){
$sql .= ' ' . $orderbyInverse2 . ' ';
}else{
$sql .= ' ' . $orderby;
}
//
}
}

return $sql;
}





A SELECT "ts_cgb".*, "area_plan"."Name" FROM "ts_cgb"
INNER JOIN "area_plan" ON area_plan.Id = ts_cgb.PlanId WHERE (ts_cgb.Isbn like '%%') AND (ts_cgb.Sid = '1') AND (ts_cgb.CatalogId != '-1')

B SELECT * FROM (SELECT TOP 1 * FROM (SELECT TOP 11 "ts_cgb".*, "area_plan"."Name" FROM "ts_cgb"
INNER JOIN "area_plan" ON area_plan.Id = ts_cgb.PlanId WHERE (ts_cgb.Isbn like '%%') AND (ts_cgb.Sid = '1') AND (ts_cgb.CatalogId != '-1') ORDER BY "ts_cgb"."Id" ASC) AS inner_tbl ORDER BY "ts_cgb"."Id" DESC ) AS outer_tbl ORDER BY "ts_cgb"."Id" ASC

C SELECT * FROM (SELECT TOP 1 * FROM (SELECT TOP 11 "ts_cgb".*, "area_plan"."Name" FROM "ts_cgb"
INNER JOIN "area_plan" ON area_plan.Id = ts_cgb.PlanId WHERE (ts_cgb.Isbn like '%%') AND (ts_cgb.Sid = '1') AND (ts_cgb.CatalogId != '-1') ORDER BY "ts_cgb"."Id" ASC) AS inner_tbl ORDER BY "inner_tbl"."Id" DESC ) AS outer_tbl ORDER BY "outer_tbl"."Id" ASC



C 为修改后 正确处理SQL 效果。