Booleans - Validity

Two constraints for Boolean values, such as the checkbox that accepts the terms. Their messages are mustBeTrue and mustBeFalse, since a message property cannot be named isTrue.

Consent.kt

data class Consent(
    val hasAcceptedTerms: Boolean?,
    val isMinor: Boolean?
) : Validatable {
    override fun validation() = validation {
        ::hasAcceptedTerms required { isTrue() }
        ::isMinor required { isFalse() }
    }
}

Constraint	Checks
`isTrue`	Is `true`.
`isFalse`	Is `false`.

`isTrue`

isTrue() on Boolean Checks that the value is true. isTrue

`isFalse`

isFalse() on Boolean Checks that the value is false. isFalse