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<?php |
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/** |
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* Created by PhpStorm. |
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* User: arthur |
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* Date: 29.10.18 |
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* Time: 09:35. |
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*/ |
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namespace Foundation\Abstracts\Transformers; |
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use Illuminate\Http\Resources\Json\JsonResource; |
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abstract class Transformer extends JsonResource |
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{ |
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protected $include = []; |
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protected $available = []; |
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/** |
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* Resolve the resource to an array. |
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* |
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* @param \Illuminate\Http\Request|null $request |
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* |
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* @return array |
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*/ |
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public function resolve($request = null) |
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{ |
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$includedRequestRelations = $this->parseRequestIncludeParameter($request); |
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return array_merge(parent::resolve($request), $this->filter($this->includeRelations($includedRequestRelations))); |
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} |
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protected function parseRequestIncludeParameter($request) |
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{ |
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if (isset($request->include) && is_string($request->include)) |
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return explode(',', $request->include); |
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return []; |
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} |
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protected function compileRelations(array $includedRequestRelations) |
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{ |
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return array_unique(array_merge($this->include, array_intersect($this->available, $includedRequestRelations))); |
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} |
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protected function includeRelations($requestedRelations) |
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{ |
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$relations = []; |
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foreach ($this->compileRelations($requestedRelations) as $relation) { |
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if (is_string($relation) && method_exists($this, 'transform' . ucfirst(strtolower($relation)))) { |
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$data = null; |
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if ($this->resource !== null) { |
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$method = 'transform' . ucfirst(strtolower($relation)); |
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$data = $this->$method($this->resource); |
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} |
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if ($data instanceof JsonResource) { |
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if ($data->resource === null) |
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$data = null; |
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else |
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$data->jsonSerialize(); |
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} |
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$relations[strtolower($relation)] = $data; |
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} else { |
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throw new \Exception('invalid relation or not relation_transform_method given in ' . get_short_class_name(static::class)); |
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} |
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} |
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return $relations; |
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} |
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/** |
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* @param $relations |
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*/ |
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public function include($relations) |
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{ |
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if (is_string($relations)) |
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$relations = [$relations]; |
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$this->include = array_unique(array_merge($this->include, $relations)); |
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return $this; |
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} |
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/** |
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* @param $relations |
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*/ |
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public function available($relations) |
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{ |
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if (is_string($relations)) |
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$relations = [$relations]; |
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$this->available = array_unique(array_merge($this->available, $relations)); |
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return $this; |
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} |
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public static function resource($model): self |
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{ |
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return new static($model); |
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} |
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public static function collection($resource) |
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{ |
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return new TransformerCollection($resource, get_called_class()); |
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} |
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public function serialize() |
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{ |
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return json_decode(json_encode($this->jsonSerialize()), true); |
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} |
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} |
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deviouspk /
larapi
