Access translator in Shopware 6 Plugin - plugins

Question

I am developing my first Shopware 6 plugin and was wondering how to access snippets in the Plugin class. I checked the Developer Guide but could not make it work.
I want to use the plugin translation as label in customField select options.
myfirstplugin.en-GB.json
{
"myfirstplugin": {
"my_custom_field_option_1": "Option 1",
"my_custom_field_option_2": "Option 2",
}
}
MyFirstPlugin.php
class MyFirstPlugin extends Plugin
{
// ....
private function createCustomFields(Context $context): void
{
if ($this->customFieldSetExists($context)) {
return;
}
$customFieldSetRepository = $this->container->get('custom_field_set.repository');
$customFieldSetRepository->create([
[
'id' => '294865e5c81b434d8349db9ea6b4e135',
'name' => 'my_custom_field_set',
'customFields' => [
[
'name' => 'my_custom_field',
'type' => CustomFieldTypes::SELECT,
'config' => [
'label' => [ 'en-GB' => 'My custom field'],
'options' => [
[
'value' => '294865e5c81b434d8349db9ea6b4e487',
// Access my_custom_field_option_1 of snippet myfirstplugin.en-GB.json
'label' => 'my_custom_field_option_1',
],
[
'value' => '1ce5abe719a04346930c7e43514ed4f1',
// Access my_custom_field_option_2 of snippet myfirstplugin.en-GB.json
'label' => 'my_custom_field_option_2',
],
],
'customFieldType' => 'select',
'componentName' => 'sw-single-select',
'customFieldPosition' => 1,
],
],
]
],
], $context);
}
}

Answer 1

You can inject an argument of type Translator to your service
in services.xml
<argument type="service" id="translator"/>
in your service
use Shopware\Core\Framework\Adapter\Translation\Translator;
/**
* #var Translator
*/
private $translator;
public function __construct($translator)
{
$this->translator = $translator;
}
then down the way you can use this pretty much the same as in a twig template:
$translated = $this->translator
->trans(
'myfirstplugin.product.detail.294865e5c81b434d8349db9ea6b4e487');

Answer 2

I think you can use the snippet repository and search the label as you want in the Plugin class like
$sRepo = $this->container->get('snippet.repository');
$labels = $sRepo->search((new Criteria())
->addFilter(
new MultiFilter(
MultiFilter::CONNECTION_OR,
[
new ContainsFilter('translationKey', 'my_custom_field_option_1'),
new ContainsFilter('translationKey', 'my_custom_field_option_2')
]
)
), $context)->getElements();

Answer 3

When you create the custom field you don't have to reference a translation snippet. Instead you can just provide the translations in the payload directly.
'config' => [
'label' => ['en-GB' => 'Label english', 'de-DE' => 'Label german'],
'type' => CustomFieldTypes::SELECT,
'options' => [
[
'value' => '294865e5c81b434d8349db9ea6b4e487',
'label' => ['en-GB' => 'Option english', 'de-DE' => 'Option german'],
],
[
'value' => '1ce5abe719a04346930c7e43514ed4f1',
'label' => ['en-GB' => 'Option english', 'de-DE' => 'Option german'],
],
],
],