deInternetJongens / Lighthouse-Utils

src/Directives/BaseDirective.php

<?php

namespace DeInternetJongens\LighthouseUtils\Directives;

use Illuminate\Database\Eloquent\Builder;
use Nuwave\Lighthouse\Schema\Directives\BaseDirective as LighthouseBaseDirective;
use Nuwave\Lighthouse\Schema\Values\ArgumentValue;
use Nuwave\Lighthouse\Support\Contracts\ArgMiddleware;
use Nuwave\Lighthouse\Support\Traits\HandlesQueryFilter;

abstract class BaseDirective extends LighthouseBaseDirective implements ArgMiddleware
{
    use HandlesQueryFilter;

The trait Nuwave\Lighthouse\Support\Traits\HandlesQueryFilter requires some properties which are not provided by DeInternetJongens\LighthouseUtils\Directives\BaseDirective: $name, $value

    public function handleArgument(ArgumentValue $argument, \Closure $next): ArgumentValue
    {
        $argument = $this->injectFilter(
            $argument,
            function (Builder $builder, string $key, array $arguments): Builder {
                $value = $arguments[$key];
                $field = \preg_replace(sprintf('/%s$/', $this->getSuffix()), '', $key);

                return $this->handle($field, $value, $builder);
            }
        );

        return $next($argument);
    }

    /**
     * Get the suffix for this query, e.g. : foo_contains, _contains is the suffix here.
     * @return string
     */
    protected function getSuffix(): string
    {
        return sprintf('_%s', $this->name());
    }

    /**
     * Add query statement to the eloquent builder.
     *
     * @param string $fieldName
     * @param mixed $value The value can be a string, number, bool, etc… This mixed is on purpose!
     * @param Builder $builder
     * @return Builder
     */
    abstract public function handle(string $fieldName, $value, Builder $builder): Builder;
}