validation library

Classes

AcceptanceRule: accepted, declined and, with other, accepted_if and declined_if (laravel/framework ValidatesAttributes, the same from 8 to 13): the value must pass _test, only while other is one of values for the conditional rules. Implicit, so a missing attribute fails.
AlphaDashRule: alpha_dash: see Rules.alphaDash.
AlphaNumRule: alpha_num: see Rules.alphaNum.
AlphaRule: alpha: see Rules.alpha.
AsciiRule: ascii: see Rules.ascii.
BailRule: Marker: stop validating the attribute after the first failure.
BetweenRule: between: see Rules.between.
BooleanRule: boolean: see Rules.boolean.
ClosureRule: A rule from a closure: see Rules.custom.
CompareRule: gt, gte, lt and lte: against another field of the same type, or a number when the value is numeric too.
ConfirmedRule: confirmed: see Rules.confirmed.
DateCompareRule: after, after_or_equal, before, before_or_equal and date_equals.
DateFormatRule: date_format:Y-m-d[,d/m/Y]: the value, a string or a number, reads back exactly in one of formats (Laravel's validateDateFormat).
DateRule: date: see Rules.date.
DecimalRule: decimal:2 and decimal:0,4.
DependentRule: prohibited_if, prohibited_unless and present_if.
DigitCountRule: min_digits and max_digits: the length of a number made of digits.
DigitsBetweenRule: digits_between: see Rules.digitsBetween.
DigitsRule: digits: see Rules.digits.
DistinctRule: distinct: see Rules.distinct.
EmailRule: email: see Rules.email.
EndsWithRule: ends_with: see Rules.endsWith.
EnumRule<E extends Enum>: Rule::enum(): the value of one of values, by name or by toValue.
ExcludeRule: The rules that drop an attribute: passes answers its name when the attribute leaves the validated data, and no error is added.
ExistsRule: exists:table,column — the value must be present in the table.
ExtensionsRule: extensions:csv,txt: the extension of the client's file name.
FileRule: file: see Rules.file.
FilledRule: filled: see Rules.filled.
FormRequest: Reusable authorization + validation for a request (Laravel FormRequest).
ImageRule: image (jpg, jpeg, png, gif, bmp, webp; image:allow_svg adds svg).
InRule: in and not_in: see Rules.inList.
IntegerRule: integer: see Rules.integer.
IpRule: ip, ipv4 and ipv6: see Rules.ip.
JsonRule: json: see Rules.json.
ListRule: array for a JSON array: see Rules.list.
LowercaseRule: lowercase: see Rules.lowercase.
MapRule: array for a JSON object: see Rules.map.
MaxRule: max: see Rules.max.
MimesRule: mimes:jpg,png: the extension guessed from the content.
MimetypesRule: mimetypes:image/jpeg,video/*: the type detected from the content.
MinRule: min: see Rules.min.
MultipleOfRule: multiple_of: see Rules.multipleOf.
NullableRule: Marker: null values skip the remaining rules.
NumericRule: numeric: see Rules.numeric.
PasswordRule: Password: see Rules.password.
PresentRule: present: see Rules.present.
ProhibitedRule: prohibited: see Rules.prohibited.
ProhibitsRule: prohibits: the others must be empty while this one is not.
RegexRule: regex and not_regex: see Rules.regex.
RequiredIfAcceptedRule: required_if_accepted: see Rules.requiredIfAccepted.
RequiredIfRule: required_if: see Rules.requiredIf.
RequiredRule: required: see Rules.required.
RequiredUnlessRule: required_unless: see Rules.requiredUnless.
RequiredWithAllRule: required_with_all: see Rules.requiredWithAll.
RequiredWithoutAllRule: required_without_all: see Rules.requiredWithoutAll.
RequiredWithoutRule: required_without: see Rules.requiredWithout.
RequiredWithRule: required_with: see Rules.requiredWith.
Rule: A validation rule. passes returns null on success or a message reference on failure: either a translation key such as min.string (resolved with parameters) or a literal message containing a space.
RuleBuilder: Rules written as a chain, typed and checked by the compiler:
RuleParser: Parses Laravel's string rule DSL ('required|email|max:255') into Rule objects (ADR-020). Parsing happens once at definition time and unknown rules throw immediately, so typos surface at boot or in tests, never in a request.
Rules: Factory facade for built-in rules (Rule.required(), Rule.email()...). Each factory returns a const-friendly Rule subclass that can be introspected for messages and OpenAPI hints.
SameRule: same and different: see Rules.same.
SizeRule: size: see Rules.size.
SometimesRule: Marker: validate only when the attribute is present.
StartsWithRule: starts_with: see Rules.startsWith.
StringRule: string: see Rules.string.
TimezoneRule: PHP's timezone_identifiers_list by the group of the name. The database here also knows old aliases such as Asia/Calcutta, which PHP's list leaves out.
UlidRule: ulid: see Rules.ulid.
UniqueRule: unique:table,column,ignore,idColumn — queries the active connection (joining any Zone transaction).
UppercaseRule: uppercase: see Rules.uppercase.
UrlRule: url: see Rules.url.
UuidRule: uuid: see Rules.uuid.
ValidationContext: Everything a Rule needs to evaluate one attribute (BLUEPRINT_V2 §7.4.1).
ValidationMessages: Default validation messages (Laravel lang/en/validation.php parity) with an Indonesian translation as the second bundled locale.
Validator: Validates a map of input against rules (BLUEPRINT_V2 §7.4).

Extension Types

ValidatedData: Validated input with typed accessors (ADR-011). Only attributes that had rules are included (Laravel $request->validated() parity).

Extensions

RuleChain on Rule: Starts a RuleBuilder from any rule: Rules.required().email().

Constants

laravelImplicitRules → const Set<String>: Laravel's Validator::$implicitRules (laravel/framework 8 to 13, the same list), by rule name: a failure of one of these ends the validation of its attribute. prohibited is not one of them.

Functions

isEmptyValue(Object? value) → bool: Whether value counts as empty for required (Laravel semantics).
parseDate(Object? value) → DateTime?: Parses ISO-8601 dates/datetimes and yyyy-MM-dd.
phpDateMatchesFormat(String value, String format) → bool: Laravel's date_format check (ValidatesAttributes::validateDateFormat, laravel/framework v8.83.27 to v13.38.0): value passes when PHP's DateTime::createFromFormat('!' . $format, $value, UTC) reads it and formatting the result with format gives value back exactly, so 2026-02-30 fails Y-m-d (it overflows to March) and 2026-1-5 fails Y-m-d but passes Y-n-j.
rulesToJsonSchema(Map<String, Object> rules) → Map<String, Object?>: Converts validation rules (the map given to request.validate or a FormRequest) into a JSON Schema object (OpenAPI 3.1 dialect), so API documents and generated clients describe exactly what the server validates:
sizeOf(Object? value, {bool numeric = false}) → num?: Size of a value Laravel-style: numbers by value, strings by rune count, collections by length. null for unsupported types. Uploaded files by size in kilobytes, as Laravel measures them.

Typedefs

QueryConstraint = Object? Function(QueryBuilder query): A condition added to the query of UniqueRule or ExistsRule: Rules.unique('users').where((q) => q.where('active', true)).

Exceptions / Errors

ValidationException: Thrown when validation fails; rendered as a Laravel-compatible 422: {"message": "...", "errors": {"field": ["..."]}}.

validation library

Classes

Extension Types

Extensions

Constants

Functions

Typedefs

Exceptions / Errors

daravel package

validation library