Rule enum

Built-in validation rules used by request validation.

Rule defines simple declarative validators such as required and email, and provides helpers for constructing parameterized rules like min, max, and unique.

Example:

final rules = [
  Rule.required,
  Rule.email,
  Rule.max(255),
];

Inheritance

• Object
• Enum
• Rule

Available extensions

• EnumName

Values

email → const Rule

required → const Rule

Properties

hashCode → int

The hash code for this object.

no setter, inherited

index → int

A numeric identifier for the enumerated value.

no setter, inherited

name → String

Available on Enum, provided by the EnumName extension

The name of the enum value.

no setter

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

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

max(int value) → MaxRule

Creates a maximum-length validation rule.

min(int value) → MinRule

Creates a minimum-length validation rule.

unique<T extends Model>({required String column}) → UniqueRule<Model>

Creates a uniqueness validation rule for a model column.

Constants

values → const List<Rule>

A constant List of the values in this enum, in order of their declaration.