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<?php |
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namespace Wandu\Migrator; |
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use DirectoryIterator; |
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use RuntimeException; |
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use SplFileInfo; |
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use InvalidArgumentException; |
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use Wandu\Migrator\Contracts\Adapter; |
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use Wandu\Migrator\Contracts\MigrationInformation; |
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use Wandu\Migrator\Contracts\MigrationTemplate; |
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class Migrator |
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{ |
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/** @var \Wandu\Migrator\Contracts\Adapter */ |
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protected $adapter; |
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/** @var \Wandu\Migrator\Contracts\MigrationTemplate */ |
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protected $template; |
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/** @var \Wandu\Migrator\Configuration */ |
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protected $config; |
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/** |
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* @param \Wandu\Migrator\Contracts\Adapter $adapter |
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* @param \Wandu\Migrator\Contracts\MigrationTemplate $template |
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* @param \Wandu\Migrator\Configuration $config |
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*/ |
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public function __construct(Adapter $adapter, MigrationTemplate $template, Configuration $config) |
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{ |
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$this->adapter = $adapter; |
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$this->template = $template; |
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$this->config = $config; |
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} |
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/** |
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* @param string $name |
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* @return string |
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*/ |
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public function createTemplate($name): string |
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{ |
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$fileName = date('ymd_His_') . $name . '.php'; |
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$filePath = $this->config->getPath() . '/' . $fileName; |
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if (file_exists($filePath) || !is_dir($this->config->getPath())) { |
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throw new InvalidArgumentException(sprintf('cannot write the file at %s.', $filePath)); |
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} |
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file_put_contents($filePath, $this->template->template($name)); |
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return $filePath; |
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} |
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/** |
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* @return array|\Wandu\Migrator\Contracts\MigrationInformation[] |
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*/ |
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public function getMigrationInformations() |
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{ |
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$migrations = []; |
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foreach ($this->getAllMigrationFiles() as $file) { |
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$migration = new FileMigrationInformation($file); |
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$migrations[$migration->getId()] = $migration; |
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} |
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foreach ($this->adapter->getAppliedIds() as $version) { |
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if (!array_key_exists($version, $migrations)) { |
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$migrations[$version] = new UnknownMigrationInformation($version); |
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} |
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} |
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ksort($migrations); |
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return array_values($migrations); |
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} |
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/** |
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* @param \Wandu\Migrator\Contracts\MigrationInformation $information |
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* @return bool |
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*/ |
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public function isApplied(MigrationInformation $information): bool |
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{ |
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return $this->adapter->isApplied($information->getId()); |
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} |
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/** |
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* @param string $migrationId |
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*/ |
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public function up($migrationId) |
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{ |
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if (!preg_match('/^\d{6}_\d{6}$/', $migrationId)) { |
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throw new RuntimeException("invalid migration id. it must be like 000000_000000."); |
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} |
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if ($this->adapter->isApplied($migrationId)) { |
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throw new RuntimeException("this {$migrationId} is already applied."); |
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} |
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$migrationInfo = $this->getFileMigrationInformation($migrationId); |
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$migrationInfo->loadMigrationFile(); |
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$this->adapter->getMigrationInstance($migrationInfo->getId(), $migrationInfo->getName())->up(); |
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$this->adapter->initialize(); |
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$this->adapter->addToMigrationTable($migrationId); |
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} |
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/** |
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* @param string $migrationId |
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*/ |
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public function down($migrationId) |
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{ |
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if (!preg_match('/^\d{6}_\d{6}$/', $migrationId)) { |
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throw new RuntimeException("invalid migration id. it must be like 000000_000000."); |
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} |
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if (!$this->adapter->isApplied($migrationId)) { |
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throw new RuntimeException("this {$migrationId} is not already applied."); |
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} |
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$migrationInfo = $this->getFileMigrationInformation($migrationId); |
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$migrationInfo->loadMigrationFile(); |
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$this->adapter->getMigrationInstance($migrationInfo->getId(), $migrationInfo->getName())->down(); |
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$this->adapter->initialize(); |
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$this->adapter->removeFromMigrationTable($migrationId); |
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} |
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/** |
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* @return array|\Wandu\Migrator\FileMigrationInformation[] |
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*/ |
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public function migrate() |
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{ |
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$migratedMigrations = []; |
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$migrations = $this->getMigrationInformations(); |
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foreach ($migrations as $migration) { |
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if (!$this->adapter->isApplied($migration->getId())) { |
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$this->up($migration->getId()); |
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$migratedMigrations[] = $migration; |
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} |
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} |
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return $migratedMigrations; |
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} |
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/** |
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* @param string $migrationId |
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* @return \Wandu\Migrator\FileMigrationInformation |
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*/ |
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protected function getFileMigrationInformation($migrationId): FileMigrationInformation |
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{ |
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foreach ($this->getAllMigrationFiles() as $file) { |
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if (strpos($file, $migrationId . '_') !== false) { |
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return new FileMigrationInformation($file); |
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} |
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} |
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throw new RuntimeException("there is no migration id \"{$migrationId}\"."); |
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} |
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/** |
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* @return array |
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*/ |
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protected function getAllMigrationFiles() |
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{ |
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$files = []; |
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if (!is_dir($this->config->getPath())) { |
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mkdir($this->config->getPath()); |
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} |
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foreach (new DirectoryIterator($this->config->getPath()) as $file) { |
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if ($file->isDot() || $file->isDir() || $file->getFilename()[0] === '.') continue; |
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$files[] = $file->getFileInfo(); |
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} |
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usort($files, function (SplFileInfo $file, SplFileInfo $nextFile) { |
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if ($file->getFilename() > $nextFile->getFilename()) { |
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return 1; |
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} |
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return $file->getFilename() < $nextFile->getFilename() ? -1 : 0; |
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}); |
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return $files; |
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} |
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} |
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Wandu /
Framework
