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<?php |
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namespace Spatie\ModelStates; |
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use Spatie\ModelStates\Exceptions\InvalidConfig; |
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class StateConfig |
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{ |
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public string $modelClass; |
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public string $fieldName; |
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public string $baseStateClass; |
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public ?string $defaultStateClass = null; |
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/** @var string[] */ |
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public array $allowedTransitions = []; |
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public function __construct( |
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string $modelClass, |
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string $fieldName, |
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string $baseStateClass |
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) { |
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$this->fieldName = $fieldName; |
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$this->modelClass = $modelClass; |
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$this->baseStateClass = $baseStateClass; |
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} |
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public function default(string $defaultStateClass): StateConfig |
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{ |
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$this->defaultStateClass = $defaultStateClass; |
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return $this; |
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} |
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public function allowTransition($from, string $to, string $transition = null): StateConfig |
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{ |
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if (is_array($from)) { |
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foreach ($from as $fromState) { |
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$this->allowTransition($fromState, $to, $transition); |
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} |
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return $this; |
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} |
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if (! is_subclass_of($from, $this->baseStateClass)) { |
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throw InvalidConfig::doesNotExtendBaseClass($from, $this->baseStateClass); |
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} |
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if (! is_subclass_of($to, $this->baseStateClass)) { |
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throw InvalidConfig::doesNotExtendBaseClass($to, $this->baseStateClass); |
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} |
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if ($transition && ! is_subclass_of($transition, Transition::class)) { |
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throw InvalidConfig::doesNotExtendTransition($transition); |
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} |
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$this->allowedTransitions[$this->createTransitionKey($from, $to)] = $transition; |
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return $this; |
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} |
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public function allowTransitions(array $transitions): StateConfig |
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{ |
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foreach ($transitions as $transition) { |
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$this->allowTransition($transition[0], $transition[1], $transition[2] ?? null); |
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} |
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return $this; |
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} |
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public function isTransitionAllowed(string $fromMorphClass, string $toMorphClass): bool |
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{ |
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$transitionKey = $this->createTransitionKey($fromMorphClass, $toMorphClass); |
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return array_key_exists($transitionKey, $this->allowedTransitions); |
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} |
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public function transitionableStates(string $fromMorphClass): array |
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{ |
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$transitionableStates = []; |
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foreach ($this->allowedTransitions as $allowedTransition => $value) { |
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[$transitionFromMorphClass, $transitionToMorphClass] = explode('-', $allowedTransition); |
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if ($transitionFromMorphClass !== $fromMorphClass) { |
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continue; |
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} |
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$transitionableStates[] = $transitionToMorphClass; |
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} |
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return $transitionableStates; |
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} |
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private function createTransitionKey(string $from, string $to): string |
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{ |
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if (is_subclass_of($from, $this->baseStateClass)) { |
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$from = $from::getMorphClass(); |
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} |
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if (is_subclass_of($to, $this->baseStateClass)) { |
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$to = $to::getMorphClass(); |
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} |
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return "{$from}-{$to}"; |
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} |
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} |
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spatie /
laravel-model-states
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