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<?php |
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namespace Flugg\Responder\Transformers\Concerns; |
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use Illuminate\Database\Eloquent\Model; |
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use League\Fractal\ParamBag; |
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use League\Fractal\Scope; |
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use LogicException; |
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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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return $this->availableIncludes ?: []; |
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} |
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/** |
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* Overrides Fractal's getter for default includes. |
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* |
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* @return array |
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*/ |
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public function getDefaultIncludes() |
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{ |
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return array_keys($this->load ?: []); |
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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 $relation |
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* @param mixed $data |
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* @return \League\Fractal\Resource\ResourceInterface |
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* @throws \LogicException |
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*/ |
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protected function callIncludeMethod(Scope $scope, $relation, $data) |
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{ |
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$parameters = $this->getScopedParameters($scope, $relation); |
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if ($method = $this->getIncludeMethod($relation)) { |
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return $this->$method($this->filterData($data, $relation), $parameters); |
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} elseif ($data instanceof Model) { |
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return $this->makeResource($relation, $this->filterData($data->$relation, $relation)); |
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} |
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throw new LogicException('Cannot resolve relation [' . $relation . '] in [' . self::class . ']'); |
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} |
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/** |
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* Get scoped parameters for a relation. |
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* |
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* @param \League\Fractal\Scope $scope |
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* @param string $relation |
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* @return \League\Fractal\ParamBag |
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*/ |
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protected function getScopedParameters(Scope $scope, string $relation): ParamBag |
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{ |
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return $scope->getManager()->getIncludeParams($scope->getIdentifier($relation)); |
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} |
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/** |
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* Get the name of an existing include method. |
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* |
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* @param string $relation |
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* @return string|null |
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*/ |
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protected function getIncludeMethod(string $relation) |
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{ |
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return method_exists($this, $method = 'include' . ucfirst($relation)) ? $method : null; |
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} |
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/** |
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* Filter data using a filter method. |
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* |
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* @param mixed $data |
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* @param string $relation |
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* @return mixed |
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*/ |
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protected function filterData($data, string $relation) |
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{ |
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if (! $method = $this->getFilterMethod($relation)) { |
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return $data; |
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} |
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return $method($data); |
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} |
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/** |
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* Get the name of an existing filter method. |
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* |
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* @param string $relation |
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* @return string|null |
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*/ |
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protected function getFilterMethod(string $relation) |
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{ |
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return method_exists($this, $method = 'filter' . ucfirst($relation)) ? $method : null; |
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} |
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/** |
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* Make a related resource. |
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* |
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* @param string $relation |
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* @param mixed $data |
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* @return \League\Fractal\Resource\ResourceInterface|false |
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*/ |
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protected abstract function makeResource(string $relation, $data); |
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} |
flugger /
laravel-responder
