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<?php
declare(strict_types=1);
namespace PhpMyAdmin\Controllers\Table;
use PhpMyAdmin\DatabaseInterface;
use PhpMyAdmin\DbTableExists;
use PhpMyAdmin\Index;
use PhpMyAdmin\ResponseRenderer;
use PhpMyAdmin\Table\Indexes;
use PhpMyAdmin\Template;
use PhpMyAdmin\Url;
use PhpMyAdmin\Util;
use function count;
use function is_array;
use function is_numeric;
use function json_decode;
use function min;
/**
* Displays index edit/creation form and handles it.
*/
class IndexesController extends AbstractController
{
/** @var DatabaseInterface */
private $dbi;
/** @var Indexes */
private $indexes;
public function __construct(
ResponseRenderer $response,
Template $template,
string $db,
string $table,
DatabaseInterface $dbi,
Indexes $indexes
) {
parent::__construct($response, $template, $db, $table);
$this->dbi = $dbi;
$this->indexes = $indexes;
}
public function __invoke(): void
{
global $db, $table, $urlParams, $cfg, $errorUrl;
if (! isset($_POST['create_edit_table'])) {
Util::checkParameters(['db', 'table']);
$urlParams = ['db' => $db, 'table' => $table];
$errorUrl = Util::getScriptNameForOption($cfg['DefaultTabTable'], 'table');
$errorUrl .= Url::getCommon($urlParams, '&');
DbTableExists::check();
}
if (isset($_POST['index'])) {
if (is_array($_POST['index'])) {
// coming already from form
$index = new Index($_POST['index']);
} else {
$index = $this->dbi->getTable($this->db, $this->table)->getIndex($_POST['index']);
}
} else {
$index = new Index();
}
if (isset($_POST['do_save_data'])) {
$this->indexes->doSaveData($index, false, $this->db, $this->table);
return;
}
$this->displayForm($index);
}
/**
* Display the form to edit/create an index
*
* @param Index $index An Index instance.
*/
private function displayForm(Index $index): void
{
$this->dbi->selectDb($GLOBALS['db']);
$add_fields = 0;
if (isset($_POST['index']) && is_array($_POST['index'])) {
// coming already from form
if (isset($_POST['index']['columns']['names'])) {
$add_fields = count($_POST['index']['columns']['names'])
- $index->getColumnCount();
}
if (isset($_POST['add_fields'])) {
$add_fields += $_POST['added_fields'];
}
} elseif (isset($_POST['create_index'])) {
/**
* In most cases, an index may consist of up to 16 columns, so add an initial limit.
* More columns could be added later if necessary.
*
* @see https://dev.mysql.com/doc/refman/5.6/en/multiple-column-indexes.html "up to 16 columns"
* @see https://mariadb.com/kb/en/innodb-limitations/#limitations-on-schema "maximum of 16 columns"
* @see https://mariadb.com/kb/en/myisam-overview/#myisam-features "Maximum of 32 columns per index"
*/
$add_fields = 1;
if (is_numeric($_POST['added_fields']) && $_POST['added_fields'] >= 2) {
$add_fields = min((int) $_POST['added_fields'], 16);
}
}
// Get fields and stores their name/type
if (isset($_POST['create_edit_table'])) {
$fields = json_decode($_POST['columns'], true);
$index_params = [
'Non_unique' => $_POST['index']['Index_choice'] === 'UNIQUE'
? '0' : '1',
];
$index->set($index_params);
$add_fields = count($fields);
} else {
$fields = $this->dbi->getTable($this->db, $this->table)
->getNameAndTypeOfTheColumns();
}
$form_params = [
'db' => $this->db,
'table' => $this->table,
];
if (isset($_POST['create_index'])) {
$form_params['create_index'] = 1;
} elseif (isset($_POST['old_index'])) {
$form_params['old_index'] = $_POST['old_index'];
} elseif (isset($_POST['index'])) {
$form_params['old_index'] = $_POST['index'];
}
$this->addScriptFiles(['indexes.js']);
$this->render('table/index_form', [
'fields' => $fields,
'index' => $index,
'form_params' => $form_params,
'add_fields' => $add_fields,
'create_edit_table' => isset($_POST['create_edit_table']),
'default_sliders_state' => $GLOBALS['cfg']['InitialSlidersState'],
'is_from_nav' => isset($_POST['is_from_nav']),
]);
}
}
|
