Use filters for bulk update

[jaulz]

Sorry, it's me again ☺️ I would like to implement a bulk update based on a query with certain filters. Is there any way how I can reuse the filters that I created for the GraphQL query and use them as input for a mutation? In the mutation I would need to instantiate the query builder with the filters from the input then.

Thanks for any help ✌️

[LastDragon-ru]

To be honest, I've never tried it. Probably if you add @searchBy/@sortBy arg to any mutation the same as in query (maybe explicit type will be needed) the types should be created in the schema. And then you can use ResolveInfo::enhanceBuilder() inside mutation to apply these args to the builder.

[jaulz]

Nice, thanks I will give it a try 😊 Could you also give me please a hint where I can find how the filters are applied to the query builder in your library?

[LastDragon-ru]

Both directives just implements Nuwave\Lighthouse\Support\Contracts\ArgBuilderDirective and Nuwave\Lighthouse\Scout\ScoutBuilderDirective. The ResolveInfo::enhanceBuilder() doing all other stuff. See https://lighthouse-php.com/6/custom-directives/input-value-directives.html#argbuilderdirective

If you have access to Argument/ArgumentSet you can try something like:

lara-asp/packages/graphql/src/Stream/Directives/Directive.php

Lines 492 to 513 in a25feab

	// Lighthouse's enhancer is slower because it processes all nested fields
	// of the input value, and then we need to recreate Argument from the
	// plain value. So we are skipping it if possible.
	$lighthouse = false;
	$filter = static function (object $directive): bool {
	return !($directive instanceof Enhancer)
	&& !($directive instanceof Offset)
	&& !($directive instanceof Limit)
	&& !($directive instanceof SearchDirective);
	};
	foreach ($info->argumentSet->arguments as $argument) {
	if ($argument->directives->contains(static fn ($directive) => !$filter($directive))) {
	foreach ($argument->directives as $directive) {
	if ($directive instanceof Enhancer) {
	$builder = $directive->enhance($builder, $argument);
	}
	}
	} else {
	$lighthouse = true;
	}
	}

[jaulz]

@LastDragon-ru thanks a lot for your help! I got it working :)