OptionalValidator
public struct OptionalValidator : Validator
The OptionalValidator
has two stages of conditions. First the primaryCondition
is checked. If it is met, then the subsequent condition
are checked for violations. If the primaryCondition
is not met, then no violation is returned.
As an example, say you only want violations to show if there is text in the field, but otherwise ignore it as it is an optional field in a form. In this case you would use a PresentCondition
as the primaryCondition
and your subsequent validation requirements as the conditions
.
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Declaration
Swift
public init()
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Undocumented
Declaration
Swift
public init(conditions: [Condition], primaryCondition: Condition = PresentCondition())
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Declaration
Swift
public func checkConditions(_ text: String?) -> [Condition]?