Awesome
Swift Validators Reactive Extensions :large_orange_diamond:
ReactiveSwift's ValidatingProperty is the ideal place to apply SwiftValidators. SwiftValidatorsReactiveExtensions provides a set of extensions that make working with ValidatingProperty easy.
Contents
Installation
SwiftValidatorsReactiveExtensions is available on CocoaPods for iOS 9.0+, Xcode 8 and Swift 3.0
pod 'SwiftValidatorsReactiveExtensions'
Walkthrough
Usage
SwiftValidatorsReactiveExtensions exposes a reactive property in Validator that maps each available validator to a ReactiveValidator. A ReactiveValidator can validate a value that conforms to StringConvertible and the result will be ValidatorOutput<StringConvertible?, ValidationError>.
ValidationError is an enum that conform to Swift.Error and provides cases for all available validators in SwiftValidators and a special case .notSpecified for when the error is not specified.
Validator.reactive
.isEmail().apply("gkaimakas@gmail.com") // returns .valid
Validator.reactive
.isEmail().apply("abcd") // returns .invalid(.isEmail)
For more examples on how to call each validator you can look at the unit tests.
Logical Operators
ReactiveValidator exposes the combine function both as a static function and as an instance function. The combine function is equivalent to a logical and meaning that all validators must be .valid for the combined validator to be .valid.
ReactiveValidator.combine(
Validator.reactive.isEmail(),
Validator.reactive.isLowercase()
) // variadic function
ReactiveValidator
.combine([
Validator.reactive.isEmail(),
Validator.reactive.isLowercase()
]) // array arguments
Validator.reactive
.isEmail()
.combine(with: Validator.reactive.isLowercase()) // instance function
Mapping
SwiftValidatorsReactiveExtensions provide a map function to map the result of a ReactiveValidator ValidatorOutput<StringConvertible?, ValidationError> to the exact ValidatorOutput that the ValidatingProperty expects.
email = ValidatingProperty<String?, ValidationError>(nil, { (value: String?) -> ValidatorOutput<String?, ValidationError> in
return ReactiveValidator.combine([
Validator.reactive.required(),
Validator.reactive.minLength(5),
Validator.reactive.maxLength(32),
Validator.reactive.isEmail()
])
.apply(value)
.map() { $0 as? String }
})
Available Validators
All the Validators that are available in SwiftValidators.
License MIT
Copyright (c) George Kaimakas gkaimakas@gmail.com
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