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