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<?php |
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namespace Flugg\Responder\Transformers\Concerns; |
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use Illuminate\Support\Collection; |
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use League\Fractal\Resource\ResourceInterface; |
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use League\Fractal\Scope; |
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/** |
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* A trait to be used by a transformer to override Fractal's transformer methods. |
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* |
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* @package flugger/laravel-responder |
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* @author Alexander Tømmerås <[email protected]> |
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* @license The MIT License |
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*/ |
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trait OverridesFractal |
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{ |
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/** |
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* Overrides Fractal's getter for available includes. |
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* |
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* @return array |
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*/ |
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public function getAvailableIncludes() |
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{ |
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if ($this->relations == ['*']) { |
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return $this->resolveScopedIncludes($this->getCurrentScope()); |
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} |
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return array_filter($this->relations, function ($relation) { |
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return $relation != '*'; |
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}); |
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} |
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/** |
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* Overrides Fractal's getter for default includes. |
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* |
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* @return array |
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*/ |
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public function getDefaultIncludes() |
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{ |
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return Collection::make($this->load)->map(function ($transformer, $relation) { |
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return is_numeric($relation) ? $transformer : $relation; |
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})->values()->all(); |
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} |
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/** |
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* Overrides Fractal's method for including a relation. |
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* |
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* @param \League\Fractal\Scope $scope |
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* @param string $identifier |
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* @param mixed $data |
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* @return \League\Fractal\Resource\ResourceInterface |
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*/ |
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protected function callIncludeMethod(Scope $scope, $identifier, $data) |
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{ |
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$parameters = $this->resolveScopedParameters($scope, $identifier); |
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return $this->includeResource($identifier, $data, $parameters); |
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} |
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/** |
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* Resolve scoped includes for the given scope. |
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* |
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* @param \League\Fractal\Scope $scope |
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* @return array |
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*/ |
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protected function resolveScopedIncludes(Scope $scope): array |
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{ |
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$level = count($scope->getParentScopes()); |
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$includes = $scope->getManager()->getRequestedIncludes(); |
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return Collection::make($includes)->map(function ($include) { |
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return explode('.', $include); |
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})->filter(function ($include) use ($level) { |
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return count($include) > $level; |
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})->pluck($level)->unique()->all(); |
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} |
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/** |
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* Resolve scoped parameters for the given scope. |
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* |
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* @param \League\Fractal\Scope $scope |
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* @param string $identifier |
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* @return array |
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*/ |
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protected function resolveScopedParameters(Scope $scope, string $identifier): array |
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{ |
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return iterator_to_array($scope->getManager()->getIncludeParams($scope->getIdentifier($identifier))); |
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} |
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/** |
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* Get the current scope of the transformer. |
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* |
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* @return \League\Fractal\Scope |
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*/ |
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public abstract function getCurrentScope(); |
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/** |
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* Include a related resource. |
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* |
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* @param string $identifier |
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* @param mixed $data |
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* @param array $parameters |
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* @return \League\Fractal\Resource\ResourceInterface |
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*/ |
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protected abstract function includeResource(string $identifier, $data, array $parameters): ResourceInterface; |
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} |
flugger /
laravel-responder
