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<?php |
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/** |
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* Spiral Framework. |
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* |
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* @license MIT |
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* @author Anton Titov (Wolfy-J) |
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*/ |
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declare(strict_types=1); |
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namespace Cycle\Migrations; |
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use Cycle\Schema\GeneratorInterface; |
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use Cycle\Schema\Registry; |
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use Spiral\Database\Schema\AbstractTable; |
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use Spiral\Migrations\Atomizer\Atomizer; |
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use Spiral\Migrations\Atomizer\Renderer; |
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use Spiral\Migrations\Atomizer\RendererInterface; |
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use Spiral\Migrations\Config\MigrationConfig; |
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use Spiral\Migrations\Migration; |
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use Spiral\Migrations\RepositoryInterface; |
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use Spiral\Reactor\ClassDeclaration; |
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use Spiral\Reactor\FileDeclaration; |
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/** |
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* Migration generator creates set of migrations needed to sync database schema with desired state. Each database will |
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* receive it's own migration. |
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*/ |
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class GenerateMigrations implements GeneratorInterface |
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{ |
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/** @var int */ |
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private static $sec = 0; |
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/** @var RepositoryInterface */ |
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private $repository; |
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/** @var RendererInterface */ |
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private $renderer; |
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/** @var MigrationConfig $migrationConfig */ |
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private $migrationConfig; |
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/** |
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* GenerateMigrations constructor. |
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* |
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* @param RepositoryInterface $migrationRepository |
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* @param MigrationConfig $migrationConfig |
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* @param RendererInterface|null $renderer |
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*/ |
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public function __construct( |
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RepositoryInterface $migrationRepository, |
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MigrationConfig $migrationConfig, |
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RendererInterface $renderer = null |
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) { |
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$this->repository = $migrationRepository; |
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$this->migrationConfig = $migrationConfig; |
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$this->renderer = $renderer ?? new Renderer(); |
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} |
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/** |
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* @param Registry $registry |
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* @return Registry |
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*/ |
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public function run(Registry $registry): Registry |
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{ |
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$databases = []; |
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foreach ($registry as $e) { |
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if ($registry->hasTable($e)) { |
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$databases[$registry->getDatabase($e)][] = $registry->getTableSchema($e); |
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} |
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} |
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foreach ($databases as $database => $tables) { |
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list($name, $class, $file) = $this->generate($database, $tables); |
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if ($class === null || $file === null) { |
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// no changes |
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continue; |
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} |
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$this->repository->registerMigration($name, $class, $file->render()); |
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} |
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return $registry; |
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} |
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/** |
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* @param string $database |
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* @param AbstractTable[] $tables |
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* @return array [string, FileDeclaration] |
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*/ |
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protected function generate(string $database, array $tables): array |
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{ |
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$atomizer = new Atomizer(new Renderer()); |
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$reasonable = false; |
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foreach ($tables as $table) { |
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if ($table->getComparator()->hasChanges()) { |
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$reasonable = true; |
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$atomizer->addTable($table); |
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} |
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} |
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if (!$reasonable) { |
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return [null, null, null]; |
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} |
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// unique class name for the migration |
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$name = sprintf( |
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'orm_%s_%s', |
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$database, |
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md5(microtime(true) . microtime(false)) |
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); |
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$class = new ClassDeclaration($name, 'Migration'); |
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$class->constant('DATABASE')->setProtected()->setValue($database); |
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$class->method('up')->setPublic(); |
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$class->method('down')->setPublic(); |
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$atomizer->declareChanges($class->method('up')->getSource()); |
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$atomizer->revertChanges($class->method('down')->getSource()); |
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$file = new FileDeclaration($this->migrationConfig->getNamespace()); |
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$file->addUse(Migration::class); |
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$file->addElement($class); |
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return [ |
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substr(sprintf( |
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'%s_%s_%s', |
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self::$sec++, |
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$database, |
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$this->generateName($atomizer) |
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), 0, 128), |
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$class->getName(), |
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$file |
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]; |
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} |
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/** |
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* @param Atomizer $atomizer |
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* @return string |
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*/ |
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private function generateName(Atomizer $atomizer): string |
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{ |
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$name = []; |
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foreach ($atomizer->getTables() as $table) { |
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if ($table->getStatus() === AbstractTable::STATUS_NEW) { |
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$name[] = 'create_' . $table->getName(); |
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continue; |
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} |
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if ($table->getStatus() === AbstractTable::STATUS_DECLARED_DROPPED) { |
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$name[] = 'drop_' . $table->getName(); |
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continue; |
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} |
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if ($table->getComparator()->isRenamed()) { |
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$name[] = 'rename_' . $table->getInitialName(); |
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continue; |
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} |
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$name[] = 'change_' . $table->getName(); |
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$comparator = $table->getComparator(); |
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foreach ($comparator->addedColumns() as $column) { |
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$name[] = 'add_' . $column->getName(); |
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} |
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foreach ($comparator->droppedColumns() as $column) { |
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$name[] = 'rm_' . $column->getName(); |
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} |
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foreach ($comparator->alteredColumns() as $column) { |
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$name[] = 'alter_' . $column[0]->getName(); |
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} |
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foreach ($comparator->addedIndexes() as $index) { |
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$name[] = 'add_index_' . $index->getName(); |
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} |
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foreach ($comparator->droppedIndexes() as $index) { |
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$name[] = 'rm_index_' . $index->getName(); |
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} |
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foreach ($comparator->alteredIndexes() as $index) { |
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$name[] = 'alter_index_' . $index[0]->getName(); |
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} |
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foreach ($comparator->addedForeignKeys() as $fk) { |
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$name[] = 'add_fk_' . $fk->getName(); |
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} |
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foreach ($comparator->droppedForeignKeys() as $fk) { |
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$name[] = 'rm_fk_' . $fk->getName(); |
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} |
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foreach ($comparator->alteredForeignKeys() as $fk) { |
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$name[] = 'alter_fk_' . $fk[0]->getName(); |
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} |
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} |
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return join('_', $name); |
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} |
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} |
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cycle /
migrations
