Create Dedicated Constraint Attributes for JSON Schema Validation

[butschster]

String with Pattern and Length

final class User
{
    public function __construct(
        #[Field(title: 'Full Name', description: 'User full name in Title Case')]
        #[Pattern('^[A-Z][a-z]+(?: [A-Z][a-z]+)*$')]
        #[Length(min: 2, max: 100)]
        public readonly string $name,
        
        #[Field(title: 'Email', format: Format::Email)]
        #[Pattern('^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$')]
        public readonly string $email,
    ) {}
}

Numeric with Range

final class Product
{
    public function __construct(
        #[Field(title: 'Price', description: 'Product price in USD')]
        #[Range(min: 0.01, max: 99999.99)]
        #[MultipleOf(0.01)]
        public readonly float $price,
        
        #[Field(title: 'Stock Quantity')]
        #[Range(min: 0, max: 10000)]
        public readonly int $stock,
    ) {}
}

Array with Items Constraint

final class Post
{
    public function __construct(
        #[Field(title: 'Tags', description: 'Post tags')]
        #[Items(min: 1, max: 10, unique: true)]
        public readonly array $tags,
        
        #[Field(title: 'Status')]
        #[Enum(['draft', 'published', 'archived'])]
        public readonly string $status,
    ) {}
}