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<?php |
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declare(strict_types=1); |
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namespace Cycle\Migrations\Atomizer; |
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use Cycle\Database\Schema\AbstractTable; |
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use Cycle\Database\Schema\Reflector; |
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use Spiral\Reactor\Partial\Source; |
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/** |
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* Atomizer provides ability to convert given AbstractTables and their changes into set of |
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* migration commands. |
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*/ |
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final class Atomizer |
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{ |
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/** @var AbstractTable[] */ |
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protected array $tables = []; |
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144 |
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public function __construct(private RendererInterface $renderer) |
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{ |
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} |
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/** |
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* Add new table into atomizer. |
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*/ |
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public function addTable(AbstractTable $table): self |
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{ |
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$this->tables[] = $table; |
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return $this; |
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} |
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/** |
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* Get all atomizer tables. |
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* |
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* @return AbstractTable[] |
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*/ |
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public function getTables(): array |
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{ |
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return $this->tables; |
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} |
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/** |
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* Generate set of commands needed to describe migration (up command). |
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*/ |
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public function declareChanges(Source $source): void |
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{ |
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foreach ($this->sortedTables() as $table) { |
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if (!$table->getComparator()->hasChanges()) { |
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continue; |
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} |
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//New operations block |
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$this->declareBlock($source); |
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if (!$table->exists()) { |
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$this->renderer->createTable($source, $table); |
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} else { |
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$this->renderer->updateTable($source, $table); |
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} |
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} |
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} |
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/** |
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* Generate set of lines needed to rollback migration (down command). |
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*/ |
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public function revertChanges(Source $source): void |
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{ |
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foreach ($this->sortedTables(true) as $table) { |
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if (!$table->getComparator()->hasChanges()) { |
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continue; |
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} |
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//New operations block |
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$this->declareBlock($source); |
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if (!$table->exists()) { |
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$this->renderer->dropTable($source, $table); |
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} else { |
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$this->renderer->revertTable($source, $table); |
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} |
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} |
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} |
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/** |
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* Tables sorted in order of their dependencies. |
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* |
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* @param bool $reverse |
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* |
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* @return AbstractTable[] |
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*/ |
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protected function sortedTables($reverse = false): array |
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{ |
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$reflector = new Reflector(); |
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foreach ($this->tables as $table) { |
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$reflector->addTable($table); |
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} |
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$sorted = $reflector->sortedTables(); |
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if ($reverse) { |
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return array_reverse($sorted); |
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} |
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return $sorted; |
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} |
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/** |
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* Add spacing between commands, only if required. |
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*/ |
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private function declareBlock(Source $source): void |
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{ |
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if ($source->getLines() !== []) { |
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$source->addLine(''); |
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} |
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} |
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} |
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cycle /
migrations
