Validator class abstract

Base class use to implement a validation

A Validator include a function validate to check value, and message to description invalid data and condition used to check context before run validate

Implementers

• ValidatorAll
• ValidatorAsync
• ValidatorContains
• ValidatorCustom
• ValidatorEmail
• ValidatorLeast
• ValidatorNot
• ValidatorPattern
• ValidatorRange
• ValidatorRequired
• ValidatorTrue
• ValidatorUnique

Constructors

Validator()

Properties

condition ↔ (bool Function()?)

Used to do some check context before run validate.

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

message ↔ String?

Message used return when validate need return invalid state

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

validate(dynamic value) → FutureOr<String?>

Do check value, return text if value is invalid, otherwise is null

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Properties

registered → Map<String, ValidatorRegister>

cached all registered validators

no setter

Static Methods

convert(Map<String, dynamic> map) → Validator?

Convert a Map to a Validator, there are only one element in Map. Use 'all' or 'least' to combine multi validators.

convertMulti(dynamic val) → List<Validator>

Return to list Validators from a Map or List