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<?php
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namespace Nuwave\Lighthouse\Execution\Arguments;
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use Illuminate\Database\Eloquent\Relations\BelongsTo;
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use Nuwave\Lighthouse\Support\Contracts\ArgResolver;
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class NestedBelongsTo implements ArgResolver
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{
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/**
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* @var \Illuminate\Database\Eloquent\Relations\BelongsTo
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*/
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protected $relation;
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public function __construct(BelongsTo $relation)
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{
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$this->relation = $relation;
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}
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/**
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* @param \Illuminate\Database\Eloquent\Model $parent
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* @param \Nuwave\Lighthouse\Execution\Arguments\ArgumentSet $args
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*/
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public function __invoke($parent, $args): void
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{
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if ($args->has('create')) {
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$saveModel = new ResolveNested(new SaveModel($this->relation));
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$related = $saveModel(
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$this->relation->make(),
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$args->arguments['create']->value
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);
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$this->relation->associate($related);
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}
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if ($args->has('connect')) {
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$this->relation->associate($args->arguments['connect']->value);
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}
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if ($args->has('update')) {
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$updateModel = new ResolveNested(new UpdateModel(new SaveModel($this->relation)));
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$related = $updateModel(
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$this->relation->make(),
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$args->arguments['update']->value
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);
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$this->relation->associate($related);
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}
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if ($args->has('upsert')) {
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$upsertModel = new ResolveNested(new UpsertModel(new SaveModel($this->relation)));
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$related = $upsertModel(
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$this->relation->make(),
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$args->arguments['upsert']->value
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);
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$this->relation->associate($related);
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}
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self::disconnectOrDelete($this->relation, $args);
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}
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public static function disconnectOrDelete(BelongsTo $relation, ArgumentSet $args): void
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{
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// We proceed with disconnecting/deleting only if the given $values is truthy.
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// There is no other information to be passed when issuing those operations,
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// but GraphQL forces us to pass some value. It would be unintuitive for
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// the end user if the given value had no effect on the execution.
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if (
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$args->has('disconnect')
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&& $args->arguments['disconnect']->value
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) {
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$relation->dissociate();
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}
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if (
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$args->has('delete')
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&& $args->arguments['delete']->value
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) {
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$relation->dissociate();
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$relation->delete();
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}
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}
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}
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spawnia