In class

A validation rule for checking if a value is within a specified list of items.

The In class is a concrete implementation of the FormifyRule abstract class. It is used to validate whether a value is contained within a specified list of items.

This rule checks if the input value is included in the provided items list. If the value is not found within the list, an error message is generated.

Inheritance

• Object
• FormifyRule
• In

Constructors

In(List<String> items)

Creates an instance of the In validation rule.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

items → List<String>

The list of items that the value should be contained within.

final

message ↔ String

Gets the error message associated with the In rule.

getter/setter pair, inherited-setter, override-getter

ruleKey → String

The unique key identifying the validation rule.

final, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

buildMessage(String attribute, String input, {String onExtra(String)?}) → String

Builds a validation error message by replacing placeholders in the error message template.

inherited

call(String attribute, String value) → String?

Validates whether a value is within the specified list of items.

override

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

Constants

key → const String

The unique identifier for the In validation rule.