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<?php
declare(strict_types=1);
namespace PhpMyAdmin\Controllers\Table\Structure;
use PhpMyAdmin\Controllers\Table\AbstractController;
use PhpMyAdmin\Controllers\Table\StructureController;
use PhpMyAdmin\DatabaseInterface;
use PhpMyAdmin\DbTableExists;
use PhpMyAdmin\Message;
use PhpMyAdmin\ResponseRenderer;
use PhpMyAdmin\Template;
use PhpMyAdmin\Url;
use PhpMyAdmin\Util;
use function __;
use function count;
final class PrimaryController extends AbstractController
{
/** @var DatabaseInterface */
private $dbi;
/** @var StructureController */
private $structureController;
public function __construct(
ResponseRenderer $response,
Template $template,
string $db,
string $table,
DatabaseInterface $dbi,
StructureController $structureController
) {
parent::__construct($response, $template, $db, $table);
$this->dbi = $dbi;
$this->structureController = $structureController;
}
public function __invoke(): void
{
global $db, $table, $message, $sql_query, $urlParams, $errorUrl, $cfg;
$selected = $_POST['selected'] ?? [];
$selected_fld = $_POST['selected_fld'] ?? [];
if (empty($selected) && empty($selected_fld)) {
$this->response->setRequestStatus(false);
$this->response->addJSON('message', __('No column selected.'));
return;
}
$primary = $this->getKeyForTablePrimary();
if (empty($primary) && ! empty($selected_fld)) {
// no primary key, so we can safely create new
$mult_btn = __('Yes');
$selected = $selected_fld;
}
$mult_btn = $_POST['mult_btn'] ?? $mult_btn ?? '';
if (! empty($selected_fld) && ! empty($primary)) {
Util::checkParameters(['db', 'table']);
$urlParams = ['db' => $db, 'table' => $table];
$errorUrl = Util::getScriptNameForOption($cfg['DefaultTabTable'], 'table');
$errorUrl .= Url::getCommon($urlParams, '&');
DbTableExists::check();
$this->render('table/structure/primary', [
'db' => $db,
'table' => $table,
'selected' => $selected_fld,
]);
return;
}
if ($mult_btn === __('Yes')) {
$sql_query = 'ALTER TABLE ' . Util::backquote($table);
if (! empty($primary)) {
$sql_query .= ' DROP PRIMARY KEY,';
}
$sql_query .= ' ADD PRIMARY KEY(';
$i = 1;
$selectedCount = count($selected);
foreach ($selected as $field) {
$sql_query .= Util::backquote($field);
$sql_query .= $i++ === $selectedCount ? ');' : ', ';
}
$this->dbi->selectDb($db);
$result = $this->dbi->tryQuery($sql_query);
if (! $result) {
$message = Message::error($this->dbi->getError());
}
}
if (empty($message)) {
$message = Message::success();
}
($this->structureController)();
}
/**
* Gets table primary key
*
* @return string
*/
private function getKeyForTablePrimary()
{
$this->dbi->selectDb($this->db);
$result = $this->dbi->query(
'SHOW KEYS FROM ' . Util::backquote($this->table) . ';'
);
$primary = '';
foreach ($result as $row) {
// Backups the list of primary keys
if ($row['Key_name'] !== 'PRIMARY') {
continue;
}
$primary .= $row['Column_name'] . ', ';
}
return $primary;
}
}
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