Normalized some filtering

module/Core/src/Entity/ShortUrl.php

@@ -40,6 +40,10 @@ class ShortUrl extends AbstractEntity
     private ?string $importOriginalShortCode = null;
     private ?ApiKey $authorApiKey = null;
 
+    private function __construct()
+    {
+    }
+
     public static function createEmpty(): self
     {
         return self::fromMeta(ShortUrlMeta::createEmpty());
@@ -219,9 +223,10 @@ class ShortUrl extends AbstractEntity
 
     public function toString(array $domainConfig): string
     {
-        return (string) (new Uri())->withPath($this->shortCode)
-                                   ->withScheme($domainConfig['schema'] ?? 'http')
-                                   ->withHost($this->resolveDomain($domainConfig['hostname'] ?? ''));
+        return (new Uri())->withPath($this->shortCode)
+                          ->withScheme($domainConfig['schema'] ?? 'http')
+                          ->withHost($this->resolveDomain($domainConfig['hostname'] ?? ''))
+                          ->__toString();
     }
 
     private function resolveDomain(string $fallback = ''): string

module/Core/src/Model/ShortUrlEdit.php

@@ -25,7 +25,6 @@ final class ShortUrlEdit
     private ?int $maxVisits = null;
     private ?bool $validateUrl = null;
 
-    // Enforce named constructors
     private function __construct()
     {
     }

module/Core/src/Model/ShortUrlMeta.php

@@ -27,18 +27,18 @@ final class ShortUrlMeta
     private int $shortCodeLength = 5;
     private ?bool $validateUrl = null;
     private ?ApiKey $apiKey = null;
+    private array $tags = [];
 
-    // Enforce named constructors
     private function __construct()
     {
     }
 
     public static function createEmpty(): self
     {
-        $meta = new self();
-        $meta->longUrl = '';
+        $instance = new self();
+        $instance->longUrl = '';
 
-        return $meta;
+        return $instance;
     }
 
     /**
@@ -48,6 +48,7 @@ final class ShortUrlMeta
     {
         $instance = new self();
         $instance->validateAndInit($data);
+
         return $instance;
     }
 
@@ -74,6 +75,7 @@ final class ShortUrlMeta
             ShortUrlMetaInputFilter::SHORT_CODE_LENGTH,
         ) ?? DEFAULT_SHORT_CODES_LENGTH;
         $this->apiKey = $inputFilter->getValue(ShortUrlMetaInputFilter::API_KEY);
+        $this->tags = $inputFilter->getValue(ShortUrlMetaInputFilter::TAGS);
     }
 
     public function getLongUrl(): string
@@ -150,4 +152,12 @@ final class ShortUrlMeta
     {
         return $this->apiKey;
     }
+
+    /**
+     * @return string[]
+     */
+    public function getTags(): array
+    {
+        return $this->tags;
+    }
 }

module/Core/src/Validation/ShortUrlMetaInputFilter.php

@@ -13,6 +13,8 @@ use Shlinkio\Shlink\Common\Validation;
 use Shlinkio\Shlink\Core\Util\CocurSymfonySluggerBridge;
 use Shlinkio\Shlink\Rest\Entity\ApiKey;
 
+use function is_numeric;
+
 use const Shlinkio\Shlink\Core\CUSTOM_SLUGS_REGEXP;
 use const Shlinkio\Shlink\Core\MIN_SHORT_CODES_LENGTH;
 
@@ -30,6 +32,7 @@ class ShortUrlMetaInputFilter extends InputFilter
     public const LONG_URL = 'longUrl';
     public const VALIDATE_URL = 'validateUrl';
     public const API_KEY = 'apiKey';
+    public const TAGS = 'tags';
 
     private bool $requireLongUrl;
 
@@ -90,12 +93,14 @@ class ShortUrlMetaInputFilter extends InputFilter
             ->setRequired(false)
             ->getValidatorChain()->attach(new Validator\IsInstanceOf(['className' => ApiKey::class]));
         $this->add($apiKeyInput);
+
+        $this->add($this->createArrayInput(self::TAGS, false));
     }
 
     private function createPositiveNumberInput(string $name, int $min = 1): Input
     {
         $input = $this->createInput($name, false);
-        $input->getValidatorChain()->attach(new Validator\Digits())
+        $input->getValidatorChain()->attach(new Validator\Callback(fn ($value) => is_numeric($value)))
                                    ->attach(new Validator\GreaterThan(['min' => $min, 'inclusive' => true]));
 
         return $input;