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<?php |
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declare(strict_types=1); |
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namespace Cycle\ORM\Command\Special; |
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use Cycle\ORM\Command\CommandInterface; |
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use Cycle\Database\DatabaseInterface; |
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/** |
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* Wraps multiple commands into one sequence. |
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*/ |
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final class Sequence implements CommandInterface, \IteratorAggregate, \Countable |
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{ |
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/** @var CommandInterface[] */ |
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private array $commands = []; |
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public function __construct( |
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private ?CommandInterface $primary = null, |
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bool $aggregatePrimary = true, |
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) { |
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if ($primary !== null && $aggregatePrimary) { |
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$this->commands[] = $primary; |
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} |
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} |
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public function getPrimaryCommand(): ?CommandInterface |
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{ |
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return $this->primary; |
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} |
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public function isExecuted(): bool |
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{ |
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foreach ($this->commands as $command) { |
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if (!$command->isExecuted()) { |
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return false; |
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} |
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} |
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return true; |
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} |
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public function isReady(): bool |
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{ |
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// always ready since check will be delegated to underlying nodes |
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return true; |
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} |
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public function addCommand(CommandInterface ...$commands): self |
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{ |
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foreach ($commands as $command) { |
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$this->commands[] = $command; |
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} |
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return $this; |
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} |
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/** |
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* Get array of underlying commands. |
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* |
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* @return CommandInterface[] |
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*/ |
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public function getCommands(): array |
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{ |
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return $this->commands; |
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} |
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public function getIterator(): \Generator |
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{ |
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foreach ($this->commands as $command) { |
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if ($command instanceof \Traversable) { |
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yield from $command; |
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continue; |
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} |
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yield $command; |
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} |
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} |
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public function count(): int |
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{ |
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return \count($this->commands); |
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} |
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public function execute(): void |
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{ |
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// nothing |
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} |
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public function getDatabase(): ?DatabaseInterface |
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{ |
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return null; |
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} |
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} |
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