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<?php |
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/** |
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* Created by PhpStorm. |
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* User: tom |
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* Date: 28/03/19 |
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* Time: 12:47 |
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*/ |
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namespace TomHart\Restful\Traits; |
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use Illuminate\Database\Eloquent\Relations\Relation; |
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use Illuminate\Routing\Router; |
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use Illuminate\Support\Str; |
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use ReflectionException; |
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use ReflectionMethod; |
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use TomHart\Restful\Concerns\HasLinks; |
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use TomHart\Restful\LinkBuilder; |
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trait HasLinksTrait |
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{ |
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/** |
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* Append attributes to query when building a query. |
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* |
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* @param string[]|string $attributes |
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* @return $this |
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*/ |
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abstract public function append($attributes); |
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/** |
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* Get the value of the model's route key. |
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* |
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* @return mixed |
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*/ |
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abstract public function getRouteKey(); |
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/** |
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* Add the links attribute to the model. |
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*/ |
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public function initializeHasLinksTrait(): void |
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{ |
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$this->append('_links'); |
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} |
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/** |
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* Get the links for this model. |
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* @return mixed[] |
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* @throws ReflectionException |
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*/ |
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public function getLinksAttribute(): array |
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{ |
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$links = $this->buildLinks(); |
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$relationships = $this->buildRelationshipLinks(); |
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if (!empty($relationships)) { |
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$links['relationships'] = $relationships; |
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} |
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return $links; |
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} |
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/** |
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* Returns the _links for the REST responses. |
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* |
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* @return mixed[] |
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*/ |
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public function buildLinks(): array |
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{ |
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$routes = ['create', 'store', 'show', 'update', 'destroy']; |
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$links = []; |
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$router = app(Router::class); |
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foreach ($routes as $routePart) { |
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$link = LinkBuilder::buildLink($this, $routePart, $router); |
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if ($link) { |
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$links[$routePart] = $link; |
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} |
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} |
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return $links; |
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} |
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/** |
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* Builds the links to create the relationship resources. |
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* |
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* @return mixed[] |
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* @throws ReflectionException |
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*/ |
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public function buildRelationshipLinks(): array |
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{ |
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$methods = get_class_methods($this); |
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$links = []; |
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$router = app(Router::class); |
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foreach ($methods as $method) { |
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$method2 = new ReflectionMethod($this, $method); |
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$return = (string)$method2->getReturnType(); |
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if (empty($return)) { |
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continue; |
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} |
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$isRelationship = is_subclass_of($return, Relation::class); |
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if (!$isRelationship) { |
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continue; |
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} |
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/** @var Relation $relationship */ |
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$relationship = $this->$method(); |
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$targetClass = $relationship->getRelated(); |
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if (!($targetClass instanceof HasLinks)) { |
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continue; |
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} |
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$createLink = LinkBuilder::buildLink($targetClass, 'create', $router); |
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$storeLink = LinkBuilder::buildLink($targetClass, 'store', $router); |
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if ($createLink || $storeLink) { |
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$links[$method] = [ |
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'create' => $createLink, |
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'store' => $storeLink |
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]; |
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} |
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} |
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return $links; |
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} |
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/** |
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* Return the name for the resource route this model |
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* @return string|null |
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*/ |
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public function getRouteName(): ?string |
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{ |
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$name = $this->getRouteKey(); |
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if (!$name) { |
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return null; |
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} |
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return Str::kebab(Str::studly($name)); |
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} |
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} |
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TomHart /
laravel-restful-controller
