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Merge pull request #14734 from owncloud/unit-test-insertIfNotExist 

[sqlite] Use an atomic implementation on sqlite for insertIfNotExist() + use it in the file cache ...
This commit is contained in:
Thomas Müller 2015-03-06 18:20:22 +01:00
parent d11f040720 1b08b7c726
commit a77a6f3b48
3 changed files with 35 additions and 51 deletions
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42
lib/private/db/adaptersqlite.php
View File

@ -19,11 +19,13 @@ class AdapterSqlite extends Adapter {
}
public function insertIfNotExist($table, $input) {
// NOTE: For SQLite we have to use this clumsy approach
// otherwise all fieldnames used must have a unique key.
$query = 'SELECT COUNT(*) FROM `' . $table . '` WHERE ';
$inserts = array();
foreach ($input as $key => $value) {
$fieldList = '`' . implode('`,`', array_keys($input)) . '`';
$query = "INSERT INTO `$table` ($fieldList) SELECT "
. str_repeat('?,', count($input)-1).'? '
. " WHERE NOT EXISTS (SELECT 1 FROM `$table` WHERE ";
$inserts = array_values($input);
foreach($input as $key => $value) {
$query .= '`' . $key . '`';
if (is_null($value)) {
$query .= ' IS NULL AND ';
@ -33,34 +35,10 @@ class AdapterSqlite extends Adapter {
}
}
$query = substr($query, 0, strlen($query) - 5);
$query .= ')';
try {
$stmt = $this->conn->prepare($query);
$result = $stmt->execute($inserts);
} catch(\Doctrine\DBAL\DBALException $e) {
$entry = 'DB Error: "'.$e->getMessage() . '"<br />';
$entry .= 'Offending command was: ' . $query . '<br />';
\OC_Log::write('core', $entry, \OC_Log::FATAL);
$l = \OC::$server->getL10N('lib');
throw new \OC\HintException(
$l->t('Database Error'),
$l->t('Please contact your system administrator.'),
0,
$e
);
}
if ($stmt->fetchColumn() === '0') {
$query = 'INSERT INTO `' . $table . '` (`'
. implode('`,`', array_keys($input)) . '`) VALUES('
. str_repeat('?,', count($input)-1).'? ' . ')';
} else {
return 0; //no rows updated
}
try {
$statement = $this->conn->prepare($query);
$result = $statement->execute(array_values($input));
return $this->conn->executeUpdate($query, $inserts);
} catch(\Doctrine\DBAL\DBALException $e) {
$entry = 'DB Error: "'.$e->getMessage() . '"<br />';
$entry .= 'Offending command was: ' . $query.'<br />';
@ -73,7 +51,5 @@ class AdapterSqlite extends Adapter {
$e
);
}
return $result;
}
}

28
lib/private/db/connection.php
View File

@ -79,8 +79,6 @@ class Connection extends \Doctrine\DBAL\Connection implements IDBConnection {
if (!is_null($limit)) {
$platform = $this->getDatabasePlatform();
$statement = $platform->modifyLimitQuery($statement, $limit, $offset);
} else {
$origStatement = $statement;
}
$statement = $this->replaceTablePrefix($statement);
$statement = $this->adapter->fixupStatement($statement);
@ -92,17 +90,19 @@ class Connection extends \Doctrine\DBAL\Connection implements IDBConnection {
}
/**
* Executes an, optionally parameterized, SQL query.
* Executes an, optionally parametrized, SQL query.
*
* If the query is parameterized, a prepared statement is used.
* If the query is parametrized, a prepared statement is used.
* If an SQLLogger is configured, the execution is logged.
*
* @param string $query The SQL query to execute.
* @param string[] $params The parameters to bind to the query, if any.
* @param array $types The types the previous parameters are in.
* @param QueryCacheProfile $qcp
* @param string $query The SQL query to execute.
* @param array $params The parameters to bind to the query, if any.
* @param array $types The types the previous parameters are in.
* @param \Doctrine\DBAL\Cache\QueryCacheProfile|null $qcp The query cache profile, optional.
*
* @return \Doctrine\DBAL\Driver\Statement The executed statement.
* @internal PERF: Directly prepares a driver statement, not a wrapper.
*
* @throws \Doctrine\DBAL\DBALException
*/
public function executeQuery($query, array $params = array(), $types = array(), QueryCacheProfile $qcp = null)
{
@ -117,11 +117,13 @@ class Connection extends \Doctrine\DBAL\Connection implements IDBConnection {
*
* This method supports PDO binding types as well as DBAL mapping types.
*
* @param string $query The SQL query.
* @param array $params The query parameters.
* @param array $types The parameter types.
* @param string $query The SQL query.
* @param array $params The query parameters.
* @param array $types The parameter types.
*
* @return integer The number of affected rows.
* @internal PERF: Directly prepares a driver statement, not a wrapper.
*
* @throws \Doctrine\DBAL\DBALException
*/
public function executeUpdate($query, array $params = array(), array $types = array())
{

16
lib/private/files/cache/cache.php vendored
View File

@ -243,13 +243,19 @@ class Cache {
list($queryParts, $params) = $this->buildParts($data);
$queryParts[] = '`storage`';
$params[] = $this->getNumericStorageId();
$valuesPlaceholder = array_fill(0, count($queryParts), '?');
$sql = 'INSERT INTO `*PREFIX*filecache` (' . implode(', ', $queryParts) . ')'
. ' VALUES (' . implode(', ', $valuesPlaceholder) . ')';
\OC_DB::executeAudited($sql, $params);
$params = array_map(function($item) {
return trim($item, "`");
}, $params);
$queryParts = array_map(function($item) {
return trim($item, "`");
}, $queryParts);
$values = array_combine($queryParts, $params);
if (\OC::$server->getDatabaseConnection()->insertIfNotExist('*PREFIX*filecache', $values)) {
return (int)\OC_DB::insertid('*PREFIX*filecache');
}
return (int)\OC_DB::insertid('*PREFIX*filecache');
return $this->getId($file);
}
}