NotEmptyValidator.php

<?php
declare( strict_types = 1 );
 
namespace MediaWiki\Extension\Translate\Validation\Validators;
 
use MediaWiki\Extension\Translate\MessageLoading\Message;
use MediaWiki\Extension\Translate\Validation\MessageValidator;
use MediaWiki\Extension\Translate\Validation\ValidationIssue;
use MediaWiki\Extension\Translate\Validation\ValidationIssues;
 
class NotEmptyValidator implements MessageValidator {
    public function getIssues( Message $message, string $targetLanguage ): ValidationIssues {
        $translation = $message->translation();
        $issues = new ValidationIssues();
 
        if ( $translation !== null && trim( $translation ) === '' ) {
            $issues->add(
                new ValidationIssue(
                    'empty',
                    'empty',
                    'translate-checks-empty'
                )
            );
        }
 
        return $issues;
    }
}