maybe you forgot to register the controller as a service or missed tagging it with the "control-CodePudding

i created a Service to reading data from the Datebase, in order to achieve that, i want to make a Controller and throw this controller i want to call first the ReadingData Service. however get the Bug : Could not resolve argument $ReadingDatan of "TryPlugin\Storefront\Controller\PageController::showexample()", maybe you forgot to register the controller as a service or missed tagging it with the "controller.service_arguments"?

my codes :

ReadingData.php

<?php declare(strict_types=1);

namespace TryPlugin\Service;

use Shopware\Core\Framework\DataAbstractionLayer\EntityRepositoryInterface;
use Shopware\Core\Framework\Context;
use Shopware\Core\Framework\DataAbstractionLayer\Search\Criteria;


class ReadingData
{
    private EntityRepositoryInterface $productRepository;

    public function __construct(EntityRepositoryInterface $productRepository)
    {
        $this->productRepository = $productRepository;
    }

    public function readData(Context $context): void
    {
        $products = $this->productRepository->search(new Criteria(), $context);
    }

    /*    public function readData(Context $context): void
        {
            $product = $this->productRepository->search(new Criteria([$myId]), $context)->first();
        }*/


}

PageController.php

<?php declare(strict_types=1);

namespace TryPlugin\Storefront\Controller;

use DateTime;
use DateTimeInterface;
use Shopware\Core\Framework\DataAbstractionLayer\EntityRepositoryInterface;
use Shopware\Core\Framework\Routing\Annotation\LoginRequired;
use Shopware\Core\Framework\Routing\Annotation\RouteScope;
use Shopware\Core\System\SalesChannel\SalesChannelContext;
use Shopware\Storefront\Controller\StorefrontController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;
use Symfony\Component\HttpFoundation\JsonResponse;
use TryPlugin\Service\ReadingData;


/**
 * @RouteScope (scopes={"storefront"})
 */
class PageController extends StorefrontController
{
 
    /**
     * @Route("/examples", name="examples", methods={"GET"})
     */


    public function showExample(ReadingData $ReadingDatan): Response
    {
        $meinData = $ReadingDatan->readData();

        return new Response($meinData);
 
    }
}

Service.xml:

<service id="TryPlugin\Storefront\Controller\PageController" public="true">
    <call method="setContainer">
        <argument type="service" id="service_container"/>

    </call>
</service>

<!--ReadingDate From Controller-->
<service id="TryPlugin\Storefront\Controller\ProductController" public="true">
    <argument type="service" id="product.repository"/>
    <call method="setContainer">
        <argument type="service" id="service_container"/>
    </call>
</service>

CodePudding user response：

Your problem is that the ReadingData service is not known by symfony, as mentioned by Cerad new symfony versions handle this with autowire, but not in shopwaree 6. You need to register it in your services.xml. Just like described here.

https://developer.shopware.com/docs/guides/plugins/plugins/plugin-fundamentals/add-custom-service

CodePudding user response：

When you want to use autowire just add the tag how the error says

<service id="TryPlugin\Storefront\Controller\PageController" public="true">
    <call method="setContainer">
        <argument type="service" id="service_container"/>

    </call>
    <tag name="controller.service_arguments"/>
</service>

<service id="TryPlugin\Storefront\Controller\ProductController" public="true">
    <argument type="service" id="product.repository"/>
    <call method="setContainer">
        <argument type="service" id="service_container"/>
    </call>
    <tag name="controller.service_arguments"/>
</service>