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Removing extra paging result that ends up because of SQLserver 10 workarounds.

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This commit is contained in:
Mark Story 2011-06-21 13:17:49 -07:00
parent 3d2a732cd3
commit 4deedf6da2
2 changed files with 43 additions and 19 deletions
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17
lib/Cake/Model/Datasource/Database/Sqlserver.php
View file

@ -114,6 +114,8 @@ class Sqlserver extends DboSource {
*/
private $__lastQueryHadError = false;
const ROW_COUNTER = '_cake_page_rownum_';
/**
* Connects to the database using options in the given configuration array.
*
@ -522,13 +524,14 @@ class Sqlserver extends DboSource {
$order = 'ORDER BY (SELECT NULL)';
}
$rowCounter = self::ROW_COUNTER;
$pagination = "
SELECT {$limit} * FROM (
SELECT {$fields}, ROW_NUMBER() OVER ({$order}) AS ssma\$rownum
SELECT {$fields}, ROW_NUMBER() OVER ({$order}) AS {$rowCounter}
FROM {$table} {$alias} {$joins} {$conditions} {$group}
) AS ssma\$sub1
WHERE ssma\$sub1.[ssma\$rownum] > {$limit2}
ORDER BY ssma\$sub1.[ssma\$rownum]
) AS _cake_paging_
WHERE _cake_paging_.{$rowCounter} > {$limit2}
ORDER BY _cake_paging_.{$rowCounter}
";
return $pagination;
} else {
@ -602,7 +605,8 @@ class Sqlserver extends DboSource {
}
/**
* Fetches the next row from the current result set
* Fetches the next row from the current result set.
* Eats the magic ROW_COUNTER variable.
*
* @return mixed
*/
@ -611,6 +615,9 @@ class Sqlserver extends DboSource {
$resultRow = array();
foreach ($this->map as $col => $meta) {
list($table, $column, $type) = $meta;
if ($table === 0 && $column === self::ROW_COUNTER) {
continue;
}
$resultRow[$table][$column] = $row[$col];
if ($type === 'boolean' && !is_null($row[$col])) {
$resultRow[$table][$column] = $this->boolean($resultRow[$table][$column]);

45
lib/Cake/Test/Case/Model/Datasource/Database/SqlserverTest.php
View file

@ -170,19 +170,6 @@ class SqlserverTestModel extends Model {
public function find($conditions = null, $fields = null, $order = null, $recursive = null) {
return $conditions;
}
/**
* findAll method
*
* @param mixed $conditions
* @param mixed $fields
* @param mixed $order
* @param mixed $recursive
* @return array
*/
public function findAll($conditions = null, $fields = null, $order = null, $recursive = null) {
return $conditions;
}
}
/**
@ -259,7 +246,7 @@ class SqlserverTest extends CakeTestCase {
*
* @var array
*/
public $fixtures = array('core.category');
public $fixtures = array('core.category', 'core.post');
/**
* Sets up a Dbo class instance for testing
@ -575,4 +562,34 @@ class SqlserverTest extends CakeTestCase {
);
$this->assertEqual($expected, $result);
}
/**
* SQL server < 11 doesn't have proper limit/offset support, test that our hack works.
*
* @return void
*/
public function testLimitOffsetHack() {
$this->loadFixtures('Post');
$query = array(
'limit' => 1,
'page' => 1,
'order' => 'Post.title ASC',
);
$Post = ClassRegistry::init('Post');
$results = $Post->find('all', $query);
$this->assertEquals(1, count($results));
$this->assertEquals('First Post', $results[0]['Post']['title']);
$query = array(
'limit' => 1,
'page' => 2,
'order' => 'Post.title ASC',
);
$Post = ClassRegistry::init('Post');
$results = $Post->find('all', $query);
$this->assertEquals(1, count($results));
$this->assertFalse(isset($results[0][0]));
$this->assertEquals('Second Post', $results[0]['Post']['title']);
}
}