283 lines
10 KiB
PHP
283 lines
10 KiB
PHP
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<?php
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declare(strict_types=1);
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namespace PhpMyAdmin\Controllers\Table\Structure;
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use PhpMyAdmin\Config\PageSettings;
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use PhpMyAdmin\Controllers\Table\AbstractController;
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use PhpMyAdmin\Controllers\Table\StructureController;
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use PhpMyAdmin\CreateAddField;
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use PhpMyAdmin\DatabaseInterface;
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use PhpMyAdmin\Html\Generator;
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use PhpMyAdmin\Message;
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use PhpMyAdmin\Partitioning\TablePartitionDefinition;
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use PhpMyAdmin\ResponseRenderer;
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use PhpMyAdmin\SqlParser\Parser;
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use PhpMyAdmin\SqlParser\Statements\CreateStatement;
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use PhpMyAdmin\StorageEngine;
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use PhpMyAdmin\Table;
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use PhpMyAdmin\Template;
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use PhpMyAdmin\Util;
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use function __;
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use function count;
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use function strpos;
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use function strrpos;
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use function substr;
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use function trim;
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final class PartitioningController extends AbstractController
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{
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/** @var DatabaseInterface */
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private $dbi;
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/** @var CreateAddField */
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private $createAddField;
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/** @var StructureController */
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private $structureController;
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public function __construct(
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ResponseRenderer $response,
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Template $template,
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string $db,
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string $table,
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DatabaseInterface $dbi,
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CreateAddField $createAddField,
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StructureController $structureController
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) {
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parent::__construct($response, $template, $db, $table);
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$this->dbi = $dbi;
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$this->createAddField = $createAddField;
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$this->structureController = $structureController;
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}
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public function __invoke(): void
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{
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if (isset($_POST['save_partitioning'])) {
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$this->dbi->selectDb($this->db);
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$this->updatePartitioning();
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($this->structureController)();
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return;
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}
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$pageSettings = new PageSettings('TableStructure');
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$this->response->addHTML($pageSettings->getErrorHTML());
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$this->response->addHTML($pageSettings->getHTML());
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$this->addScriptFiles(['table/structure.js', 'indexes.js']);
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$partitionDetails = null;
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if (! isset($_POST['partition_by'])) {
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$partitionDetails = $this->extractPartitionDetails();
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}
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$storageEngines = StorageEngine::getArray();
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$partitionDetails = TablePartitionDefinition::getDetails($partitionDetails);
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$this->render('table/structure/partition_definition_form', [
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'db' => $this->db,
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'table' => $this->table,
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'partition_details' => $partitionDetails,
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'storage_engines' => $storageEngines,
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]);
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}
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/**
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* Extracts partition details from CREATE TABLE statement
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*
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* @return array<string, array<int, array<string, mixed>>|bool|int|string>|null array of partition details
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*/
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private function extractPartitionDetails(): ?array
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{
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$createTable = (new Table($this->table, $this->db))->showCreate();
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if (! $createTable) {
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return null;
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}
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$parser = new Parser($createTable);
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/**
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* @var CreateStatement $stmt
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*/
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$stmt = $parser->statements[0];
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$partitionDetails = [];
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$partitionDetails['partition_by'] = '';
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$partitionDetails['partition_expr'] = '';
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$partitionDetails['partition_count'] = 0;
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if (! empty($stmt->partitionBy)) {
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$openPos = strpos($stmt->partitionBy, '(');
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$closePos = strrpos($stmt->partitionBy, ')');
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if ($openPos !== false && $closePos !== false) {
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$partitionDetails['partition_by'] = trim(substr($stmt->partitionBy, 0, $openPos));
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$partitionDetails['partition_expr'] = trim(substr(
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$stmt->partitionBy,
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$openPos + 1,
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$closePos - ($openPos + 1)
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));
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$count = $stmt->partitionsNum ?? count($stmt->partitions);
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$partitionDetails['partition_count'] = $count;
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}
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}
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$partitionDetails['subpartition_by'] = '';
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$partitionDetails['subpartition_expr'] = '';
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$partitionDetails['subpartition_count'] = 0;
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if (! empty($stmt->subpartitionBy)) {
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$openPos = strpos($stmt->subpartitionBy, '(');
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$closePos = strrpos($stmt->subpartitionBy, ')');
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if ($openPos !== false && $closePos !== false) {
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$partitionDetails['subpartition_by'] = trim(substr($stmt->subpartitionBy, 0, $openPos));
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$partitionDetails['subpartition_expr'] = trim(substr(
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$stmt->subpartitionBy,
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$openPos + 1,
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$closePos - ($openPos + 1)
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));
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$count = $stmt->subpartitionsNum ?? count($stmt->partitions[0]->subpartitions);
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$partitionDetails['subpartition_count'] = $count;
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}
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}
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// Only LIST and RANGE type parameters allow subpartitioning
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$partitionDetails['can_have_subpartitions'] = $partitionDetails['partition_count'] > 1
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&& ($partitionDetails['partition_by'] === 'RANGE'
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|| $partitionDetails['partition_by'] === 'RANGE COLUMNS'
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|| $partitionDetails['partition_by'] === 'LIST'
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|| $partitionDetails['partition_by'] === 'LIST COLUMNS');
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// Values are specified only for LIST and RANGE type partitions
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$partitionDetails['value_enabled'] = isset($partitionDetails['partition_by'])
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&& ($partitionDetails['partition_by'] === 'RANGE'
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|| $partitionDetails['partition_by'] === 'RANGE COLUMNS'
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|| $partitionDetails['partition_by'] === 'LIST'
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|| $partitionDetails['partition_by'] === 'LIST COLUMNS');
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$partitionDetails['partitions'] = [];
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for ($i = 0, $iMax = $partitionDetails['partition_count']; $i < $iMax; $i++) {
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if (! isset($stmt->partitions[$i])) {
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$partitionDetails['partitions'][$i] = [
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'name' => 'p' . $i,
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'value_type' => '',
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'value' => '',
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'engine' => '',
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'comment' => '',
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'data_directory' => '',
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'index_directory' => '',
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'max_rows' => '',
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'min_rows' => '',
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'tablespace' => '',
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'node_group' => '',
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];
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} else {
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$p = $stmt->partitions[$i];
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$type = $p->type;
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$expr = trim((string) $p->expr, '()');
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if ($expr === 'MAXVALUE') {
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$type .= ' MAXVALUE';
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$expr = '';
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}
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$partitionDetails['partitions'][$i] = [
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'name' => $p->name,
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'value_type' => $type,
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'value' => $expr,
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'engine' => $p->options->has('ENGINE', true),
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'comment' => trim((string) $p->options->has('COMMENT', true), "'"),
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'data_directory' => trim((string) $p->options->has('DATA DIRECTORY', true), "'"),
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'index_directory' => trim((string) $p->options->has('INDEX_DIRECTORY', true), "'"),
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'max_rows' => $p->options->has('MAX_ROWS', true),
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'min_rows' => $p->options->has('MIN_ROWS', true),
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'tablespace' => $p->options->has('TABLESPACE', true),
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'node_group' => $p->options->has('NODEGROUP', true),
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];
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}
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$partition =& $partitionDetails['partitions'][$i];
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$partition['prefix'] = 'partitions[' . $i . ']';
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if ($partitionDetails['subpartition_count'] <= 1) {
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continue;
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}
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$partition['subpartition_count'] = $partitionDetails['subpartition_count'];
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$partition['subpartitions'] = [];
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for ($j = 0, $jMax = $partitionDetails['subpartition_count']; $j < $jMax; $j++) {
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if (! isset($stmt->partitions[$i]->subpartitions[$j])) {
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$partition['subpartitions'][$j] = [
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'name' => $partition['name'] . '_s' . $j,
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'engine' => '',
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'comment' => '',
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'data_directory' => '',
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'index_directory' => '',
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'max_rows' => '',
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'min_rows' => '',
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'tablespace' => '',
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'node_group' => '',
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];
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} else {
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$sp = $stmt->partitions[$i]->subpartitions[$j];
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$partition['subpartitions'][$j] = [
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'name' => $sp->name,
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'engine' => $sp->options->has('ENGINE', true),
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'comment' => trim((string) $sp->options->has('COMMENT', true), "'"),
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'data_directory' => trim((string) $sp->options->has('DATA DIRECTORY', true), "'"),
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'index_directory' => trim((string) $sp->options->has('INDEX_DIRECTORY', true), "'"),
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'max_rows' => $sp->options->has('MAX_ROWS', true),
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'min_rows' => $sp->options->has('MIN_ROWS', true),
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'tablespace' => $sp->options->has('TABLESPACE', true),
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'node_group' => $sp->options->has('NODEGROUP', true),
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];
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}
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$subpartition =& $partition['subpartitions'][$j];
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$subpartition['prefix'] = 'partitions[' . $i . ']'
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. '[subpartitions][' . $j . ']';
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}
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}
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return $partitionDetails;
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}
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private function updatePartitioning(): void
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{
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$sql_query = 'ALTER TABLE ' . Util::backquote($this->table) . ' '
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. $this->createAddField->getPartitionsDefinition();
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// Execute alter query
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$result = $this->dbi->tryQuery($sql_query);
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if ($result === false) {
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$this->response->setRequestStatus(false);
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$this->response->addJSON(
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'message',
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Message::rawError(
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__('Query error') . ':<br>' . $this->dbi->getError()
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)
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);
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return;
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}
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$message = Message::success(
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__('Table %1$s has been altered successfully.')
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);
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$message->addParam($this->table);
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$this->response->addHTML(
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Generator::getMessage($message, $sql_query, 'success')
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);
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}
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}
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