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319 lines
11 KiB
319 lines
11 KiB
2 years ago
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<?php
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/**
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* Functionality for the navigation tree
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*/
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declare(strict_types=1);
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namespace PhpMyAdmin\Navigation\Nodes;
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use PhpMyAdmin\Url;
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use PhpMyAdmin\Util;
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use function __;
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use function in_array;
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use function intval;
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/**
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* Represents a columns node in the navigation tree
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*/
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class NodeTable extends NodeDatabaseChild
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{
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/**
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* For the second IMG tag, used when rendering the node.
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*
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* @var array<string, string>|null
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* @psalm-var array{image: string, title: string}|null
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*/
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public $secondIcon;
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/**
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* Initialises the class
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*
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* @param string $name An identifier for the new node
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* @param int $type Type of node, may be one of CONTAINER or OBJECT
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* @param bool $isGroup Whether this object has been created
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* while grouping nodes
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*/
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public function __construct($name, $type = Node::OBJECT, $isGroup = false)
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{
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parent::__construct($name, $type, $isGroup);
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$icon = $this->addIcon(
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Util::getScriptNameForOption($GLOBALS['cfg']['NavigationTreeDefaultTabTable'], 'table')
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);
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if ($icon !== null) {
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$this->icon = $icon;
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}
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$this->secondIcon = $this->addIcon(
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Util::getScriptNameForOption($GLOBALS['cfg']['NavigationTreeDefaultTabTable2'], 'table')
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);
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$title = (string) Util::getTitleForTarget($GLOBALS['cfg']['DefaultTabTable']);
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$this->title = $title;
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$this->links = [
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'text' => [
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'route' => Util::getUrlForOption($GLOBALS['cfg']['DefaultTabTable'], 'table'),
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'params' => ['pos' => 0, 'db' => null, 'table' => null],
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],
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'icon' => [
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'route' => Util::getUrlForOption($GLOBALS['cfg']['NavigationTreeDefaultTabTable'], 'table'),
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'params' => ['db' => null, 'table' => null],
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],
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'second_icon' => [
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'route' => Util::getUrlForOption($GLOBALS['cfg']['NavigationTreeDefaultTabTable2'], 'table'),
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'params' => ['db' => null, 'table' => null],
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],
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'title' => $this->title,
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];
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$this->classes = 'nav_node_table';
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$this->urlParamName = 'table';
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}
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/**
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* Returns the number of children of type $type present inside this container
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* This method is overridden by the PhpMyAdmin\Navigation\Nodes\NodeDatabase
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* and PhpMyAdmin\Navigation\Nodes\NodeTable classes
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*
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* @param string $type The type of item we are looking for
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* ('columns' or 'indexes')
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* @param string $searchClause A string used to filter the results of the query
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*
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* @return int
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*/
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public function getPresence($type = '', $searchClause = '')
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{
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global $dbi;
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$retval = 0;
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$db = $this->realParent()->realName;
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$table = $this->realName;
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switch ($type) {
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case 'columns':
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if (! $GLOBALS['cfg']['Server']['DisableIS']) {
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$db = $dbi->escapeString($db);
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$table = $dbi->escapeString($table);
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$query = 'SELECT COUNT(*) ';
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$query .= 'FROM `INFORMATION_SCHEMA`.`COLUMNS` ';
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$query .= "WHERE `TABLE_NAME`='" . $table . "' ";
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$query .= "AND `TABLE_SCHEMA`='" . $db . "'";
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$retval = (int) $dbi->fetchValue($query);
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} else {
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$db = Util::backquote($db);
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$table = Util::backquote($table);
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$query = 'SHOW COLUMNS FROM ' . $table . ' FROM ' . $db . '';
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$retval = (int) $dbi->queryAndGetNumRows($query);
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}
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break;
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case 'indexes':
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$db = Util::backquote($db);
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$table = Util::backquote($table);
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$query = 'SHOW INDEXES FROM ' . $table . ' FROM ' . $db;
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$retval = (int) $dbi->queryAndGetNumRows($query);
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break;
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case 'triggers':
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if (! $GLOBALS['cfg']['Server']['DisableIS']) {
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$db = $dbi->escapeString($db);
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$table = $dbi->escapeString($table);
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$query = 'SELECT COUNT(*) ';
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$query .= 'FROM `INFORMATION_SCHEMA`.`TRIGGERS` ';
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$query .= 'WHERE `EVENT_OBJECT_SCHEMA` '
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. Util::getCollateForIS() . "='" . $db . "' ";
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$query .= 'AND `EVENT_OBJECT_TABLE` '
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. Util::getCollateForIS() . "='" . $table . "'";
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$retval = (int) $dbi->fetchValue($query);
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} else {
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$db = Util::backquote($db);
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$table = $dbi->escapeString($table);
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$query = 'SHOW TRIGGERS FROM ' . $db . " WHERE `Table` = '" . $table . "'";
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$retval = (int) $dbi->queryAndGetNumRows($query);
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}
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break;
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default:
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break;
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}
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return $retval;
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}
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/**
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* Returns the names of children of type $type present inside this container
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* This method is overridden by the PhpMyAdmin\Navigation\Nodes\NodeDatabase
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* and PhpMyAdmin\Navigation\Nodes\NodeTable classes
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*
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* @param string $type The type of item we are looking for
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* ('tables', 'views', etc)
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* @param int $pos The offset of the list within the results
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* @param string $searchClause A string used to filter the results of the query
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*
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* @return array
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*/
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public function getData($type, $pos, $searchClause = '')
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{
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global $dbi;
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$maxItems = $GLOBALS['cfg']['MaxNavigationItems'];
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$retval = [];
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$db = $this->realParent()->realName;
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$table = $this->realName;
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switch ($type) {
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case 'columns':
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if (! $GLOBALS['cfg']['Server']['DisableIS']) {
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$db = $dbi->escapeString($db);
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$table = $dbi->escapeString($table);
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$query = 'SELECT `COLUMN_NAME` AS `name` ';
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$query .= ',`COLUMN_KEY` AS `key` ';
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$query .= ',`DATA_TYPE` AS `type` ';
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$query .= ',`COLUMN_DEFAULT` AS `default` ';
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$query .= ",IF (`IS_NULLABLE` = 'NO', '', 'nullable') AS `nullable` ";
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$query .= 'FROM `INFORMATION_SCHEMA`.`COLUMNS` ';
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$query .= "WHERE `TABLE_NAME`='" . $table . "' ";
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$query .= "AND `TABLE_SCHEMA`='" . $db . "' ";
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$query .= 'ORDER BY `COLUMN_NAME` ASC ';
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$query .= 'LIMIT ' . intval($pos) . ', ' . $maxItems;
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$retval = $dbi->fetchResult($query);
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break;
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}
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$db = Util::backquote($db);
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$table = Util::backquote($table);
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$query = 'SHOW COLUMNS FROM ' . $table . ' FROM ' . $db;
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$handle = $dbi->tryQuery($query);
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if ($handle === false) {
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break;
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}
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$count = 0;
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if ($handle->seek($pos)) {
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while ($arr = $handle->fetchAssoc()) {
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if ($count >= $maxItems) {
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break;
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}
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$retval[] = [
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'name' => $arr['Field'],
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'key' => $arr['Key'],
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'type' => Util::extractColumnSpec($arr['Type'])['type'],
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'default' => $arr['Default'],
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'nullable' => ($arr['Null'] === 'NO' ? '' : 'nullable'),
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];
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$count++;
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}
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}
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break;
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case 'indexes':
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$db = Util::backquote($db);
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$table = Util::backquote($table);
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$query = 'SHOW INDEXES FROM ' . $table . ' FROM ' . $db;
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$handle = $dbi->tryQuery($query);
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if ($handle === false) {
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break;
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}
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$count = 0;
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foreach ($handle as $arr) {
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if (in_array($arr['Key_name'], $retval)) {
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continue;
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}
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if ($pos <= 0 && $count < $maxItems) {
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$retval[] = $arr['Key_name'];
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$count++;
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}
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$pos--;
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}
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break;
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case 'triggers':
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if (! $GLOBALS['cfg']['Server']['DisableIS']) {
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$db = $dbi->escapeString($db);
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$table = $dbi->escapeString($table);
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$query = 'SELECT `TRIGGER_NAME` AS `name` ';
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$query .= 'FROM `INFORMATION_SCHEMA`.`TRIGGERS` ';
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$query .= 'WHERE `EVENT_OBJECT_SCHEMA` '
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. Util::getCollateForIS() . "='" . $db . "' ";
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$query .= 'AND `EVENT_OBJECT_TABLE` '
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. Util::getCollateForIS() . "='" . $table . "' ";
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$query .= 'ORDER BY `TRIGGER_NAME` ASC ';
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$query .= 'LIMIT ' . intval($pos) . ', ' . $maxItems;
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$retval = $dbi->fetchResult($query);
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break;
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}
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$db = Util::backquote($db);
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$table = $dbi->escapeString($table);
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$query = 'SHOW TRIGGERS FROM ' . $db . " WHERE `Table` = '" . $table . "'";
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$handle = $dbi->tryQuery($query);
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if ($handle === false) {
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break;
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}
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$count = 0;
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if ($handle->seek($pos)) {
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while ($arr = $handle->fetchAssoc()) {
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if ($count >= $maxItems) {
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break;
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}
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$retval[] = $arr['Trigger'];
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$count++;
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}
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}
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break;
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default:
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break;
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}
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return $retval;
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}
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/**
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* Returns the type of the item represented by the node.
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*
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* @return string type of the item
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*/
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protected function getItemType()
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{
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return 'table';
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}
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/**
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* Add an icon to navigation tree
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*
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* @param string $page Page name to redirect
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*
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* @return array<string, string>|null
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* @psalm-return array{image: string, title: string}|null
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*/
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private function addIcon(string $page): ?array
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{
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if (empty($page)) {
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return null;
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}
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switch ($page) {
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case Url::getFromRoute('/table/structure'):
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return ['image' => 'b_props', 'title' => __('Structure')];
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case Url::getFromRoute('/table/search'):
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return ['image' => 'b_search', 'title' => __('Search')];
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case Url::getFromRoute('/table/change'):
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return ['image' => 'b_insrow', 'title' => __('Insert')];
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case Url::getFromRoute('/table/sql'):
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return ['image' => 'b_sql', 'title' => __('SQL')];
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case Url::getFromRoute('/sql'):
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return ['image' => 'b_browse', 'title' => __('Browse')];
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}
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return null;
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}
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}
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