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Make MySQL return "number of found rows" instead of number of "affected rows".

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This commit is contained in:
Andreas Fischer 2014-07-16 14:35:47 +02:00
parent 10b59f101f
commit e26612244a
2 changed files with 48 additions and 1 deletions
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8
lib/private/db/connectionfactory.php
View File

@ -60,7 +60,13 @@ class ConnectionFactory {
if (!isset($this->defaultConnectionParams[$normalizedType])) {
throw new \InvalidArgumentException("Unsupported type: $type");
}
return $this->defaultConnectionParams[$normalizedType];
$result = $this->defaultConnectionParams[$normalizedType];
if ($normalizedType === 'mysql' && defined('\PDO::MYSQL_ATTR_FOUND_ROWS')) {
$result['driverOptions'] = array(
\PDO::MYSQL_ATTR_FOUND_ROWS => true,
);
}
return $result;
}
/**

41
tests/lib/db.php
View File

@ -200,4 +200,45 @@ class Test_DB extends PHPUnit_Framework_TestCase {
}
}
public function testUpdateAffectedRowsNoMatch() {
$this->insertCardData('fullname1', 'uri1');
// The WHERE clause does not match any rows
$this->assertSame(0, $this->updateCardData('fullname3', 'uri2'));
}
public function testUpdateAffectedRowsDifferent() {
$this->insertCardData('fullname1', 'uri1');
// The WHERE clause matches a single row and the value we are updating
// is different from the one already present.
$this->assertSame(1, $this->updateCardData('fullname1', 'uri2'));
}
public function testUpdateAffectedRowsSame() {
$this->insertCardData('fullname1', 'uri1');
// The WHERE clause matches a single row and the value we are updating
// to is the same as the one already present. MySQL reports 0 here when
// the PDO::MYSQL_ATTR_FOUND_ROWS flag is not specified.
$this->assertSame(1, $this->updateCardData('fullname1', 'uri1'));
}
public function testUpdateAffectedRowsMultiple() {
$this->insertCardData('fullname1', 'uri1');
$this->insertCardData('fullname2', 'uri2');
// The WHERE clause matches two rows. One row contains a value that
// needs to be updated, the other one already contains the value we are
// updating to. MySQL reports 1 here when the PDO::MYSQL_ATTR_FOUND_ROWS
// flag is not specified.
$query = OC_DB::prepare("UPDATE `*PREFIX*{$this->table2}` SET `uri` = ?");
$this->assertSame(2, $query->execute(array('uri1')));
}
protected function insertCardData($fullname, $uri) {
$query = OC_DB::prepare("INSERT INTO `*PREFIX*{$this->table2}` (`fullname`, `uri`, `carddata`) VALUES (?, ?, ?)");
$this->assertSame(1, $query->execute(array($fullname, $uri, uniqid())));
}
protected function updateCardData($fullname, $uri) {
$query = OC_DB::prepare("UPDATE `*PREFIX*{$this->table2}` SET `uri` = ? WHERE `fullname` = ?");
return $query->execute(array($uri, $fullname));
}
}