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Code Issues Releases Wiki Activity

Improve SQLite

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git-svn-id: https://adminer.svn.sourceforge.net/svnroot/adminer/trunk@1482 7c3ca157-0c34-0410-bff1-cbf682f78f5c
This commit is contained in:
jakubvrana
2010-04-22 23:05:16 +00:00
parent acf7a42433
commit b649373e03
3 changed files with 91 additions and 47 deletions
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126
adminer/drivers/sqlite.inc.php
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@@ -15,20 +15,24 @@ if (isset($_GET["sqlite"]) || isset($_GET["sqlite2"])) {
if (isset($_GET["sqlite2"])) {
class Min_SQLite {
var $extension = "SQLite", $server_info, $affected_rows, $error, $_connection;
var $extension = "SQLite", $server_info, $affected_rows, $error, $_link;
function __construct() {
$this->server_info = sqlite_libversion();
$this->_connection = new SQLiteDatabase(":memory:");
$this->_link = new SQLiteDatabase(":memory:");
}
function open($filename) {
$this->_connection = new SQLiteDatabase($filename);
$this->_link = new SQLiteDatabase($filename);
}
function close() {
$this->_link = null;
}
function query($query, $unbuffered = false) {
$method = ($unbuffered ? "unbufferedQuery" : "query");
$result = @$this->_connection->$method($query, SQLITE_BOTH, $error);
$result = @$this->_link->$method($query, SQLITE_BOTH, $error);
if (!$result) {
$this->error = $error;
return false;
@@ -98,32 +102,36 @@ if (isset($_GET["sqlite"]) || isset($_GET["sqlite2"])) {
} else {
class Min_SQLite {
var $extension = "SQLite3", $server_info, $affected_rows, $error, $_connection;
var $extension = "SQLite3", $server_info, $affected_rows, $error, $_link;
function __construct() {
$this->_connection = new SQLite3(":memory:"); // required to display variables
$version = $this->_connection->version();
$this->_link = new SQLite3(":memory:"); // required to display variables
$version = $this->_link->version();
$this->server_info = $version["versionString"];
}
function open($filename) {
$this->_connection = new SQLite3($filename);
$this->_link = new SQLite3($filename);
}
function close() {
$this->_link->close();
}
function query($query) {
$result = @$this->_connection->query($query);
$result = @$this->_link->query($query);
if (!$result) {
$this->error = $this->_connection->lastErrorMsg();
$this->error = $this->_link->lastErrorMsg();
return false;
} elseif ($result->numColumns()) {
return new Min_Result($result);
}
$this->affected_rows = $this->_connection->changes();
$this->affected_rows = $this->_link->changes();
return true;
}
function quote($string) {
return "'" . $this->_connection->escapeString($string) . "'";
return "'" . $this->_link->escapeString($string) . "'";
}
function result($query, $field = 0) {
@@ -169,46 +177,56 @@ if (isset($_GET["sqlite"]) || isset($_GET["sqlite2"])) {
}
class Min_DB extends Min_SQLite {
function select_db($filename) {
set_exception_handler('connect_error'); // try/catch is not compatible with PHP 4
$this->open($filename);
restore_exception_handler();
return true;
}
function multi_query($query) {
return $this->_result = $this->query($query);
}
function store_result() {
return $this->_result;
}
function next_result() {
return false;
}
}
} elseif (extension_loaded("pdo_sqlite")) {
class Min_DB extends Min_PDO {
class Min_SQLite extends Min_PDO {
var $extension = "PDO_SQLite";
function select_db($filename) {
function __construct() {
$this->dsn(DRIVER . "::memory:", "", "");
}
function open($filename) {
static $connected = false;
if ($connected) {
return true;
}
$connected = true;
$this->dsn(DRIVER . ":$filename", "", "", "connect_error");
//! $this->server_info needs to be filled in __construct()
$this->dsn(DRIVER . ":$filename", "", "");
return true;
}
function close() {
// no known way
}
}
}
class Min_DB extends Min_SQLite {
function select_db($filename) {
if (!is_readable($filename)) { //! verify database format
return false;
}
set_exception_handler('connect_error'); // try/catch is not compatible with PHP 4
$this->open($filename);
restore_exception_handler();
return true;
}
function multi_query($query) {
return $this->_result = $this->query($query);
}
function store_result() {
return $this->_result;
}
function next_result() {
return false;
}
}
function idf_escape($idf) {
return '"' . str_replace('"', '""', $idf) . '"';
}
@@ -235,7 +253,8 @@ if (isset($_GET["sqlite"]) || isset($_GET["sqlite2"])) {
}
function db_collation($db, $collations) {
return null;
global $connection;
return $connection->result("PRAGMA encoding"); // there is no database list so $db == DB
}
function engines() {
@@ -332,6 +351,7 @@ if (isset($_GET["sqlite"]) || isset($_GET["sqlite2"])) {
if (is_object($result)) {
while ($row = $result->fetch_assoc()) {
$foreign_key = &$return[$row["id"]];
//! idf_unescape in SQLite2
if (!$foreign_key) {
$foreign_key = $row;
}
@@ -348,7 +368,7 @@ if (isset($_GET["sqlite"]) || isset($_GET["sqlite2"])) {
}
function collations() {
return get_vals("PRAGMA collation_list", 1);
return (isset($_GET["create"]) ? get_vals("PRAGMA collation_list", 1) : array());
}
function information_schema($db) {
@@ -365,9 +385,31 @@ if (isset($_GET["sqlite"]) || isset($_GET["sqlite2"])) {
return $connection->quote($val);
}
function create_database($db, $collation) {
global $connection;
// SQLITE3_OPEN_CREATE is not respected
// PRAGMA encoding = "UTF-8" is not respected
if (!file_exists($db) && touch($db)) {
return true;
}
$connection->error = lang('File can not be created.');
return false;
}
function drop_databases($databases) {
global $connection;
$connection->close();
foreach ($databases as $db) {
if (!unlink($db)) {
return false;
}
}
return true;
}
function rename_database($name, $collation) {
global $connection;
$connection->close(); //! not available with all extensions
$connection->close();
return rename(DB, $name);
}
@@ -395,7 +437,7 @@ if (isset($_GET["sqlite"]) || isset($_GET["sqlite2"])) {
return false;
}
if ($auto_increment) {
return queries("UPDATE sqlite_sequence SET seq = $auto_increment WHERE name = " . $connection->quote($name) . "");
queries("UPDATE sqlite_sequence SET seq = $auto_increment WHERE name = " . $connection->quote($name)); // ignores error
}
return true;
}