Validator

public class Validator

Class that makes Validator objects. Should be added as a parameter to ViewController that will display validation fields.

  • Dictionary to hold all fields (and accompanying rules) that will undergo validation.

    Declaration

    Swift

    public var validations = [UITextField:ValidationRule]()

  • Dictionary to hold fields (and accompanying errors) that were unsuccessfully validated.

    Declaration

    Swift

    public var errors = [UITextField:ValidationError]()

  • Declaration

    Swift

    public init(){}

    Return Value

    An initialized object, or nil if an object could not be created for some reason that would not result in an exception.

Public functions

  • This method is used to validate a single field registered to Validator. If validation is unsuccessful, field gets added to errors dictionary.

    Declaration

    Swift

    public func validateField(textField: UITextField, callback: (error:ValidationError?) -> Void)

    Parameters

    textField

    Holds validator field data.

    Return Value

    No return value.

Using Keys

  • This method is used to style fields that have undergone validation checks. Success callback should be used to show common success styling and error callback should be used to show common error styling.

    Declaration

    Swift

    public func styleTransformers(success success:((validationRule:ValidationRule)->Void)?, error:((validationError:ValidationError)->Void)?)

    Parameters

    success

    A closure which is called with validationRule, an object that holds validation data
    error

    A closure which is called with validationError, an object that holds validation error data

    Return Value

    No return value

  • This method is used to add a field to validator.

    Declaration

    Swift

    public func registerField(textField:UITextField, rules:[Rule])

    Parameters

    textField

    field that is to be validated.
    Rule

    An array which holds different rules to validate against textField.

    Return Value

    No return value

  • This method is used to add a field to validator.

    Declaration

    Swift

    public func registerField(textField:UITextField, errorLabel:UILabel, rules:[Rule])

    Parameters

    textfield

    field that is to be validated.
    errorLabel

    A UILabel that holds error label data
    rules

    A Rule array that holds different rules that apply to said textField.

    Return Value

    No return value

  • This method is for removing a field validator.

    Declaration

    Swift

    public func unregisterField(textField:UITextField)

    Parameters

    textField

    field used to locate and remove textField from validator.

    Return Value

    No return value

  • This method checks to see if all fields in validator are valid.

    Declaration

    Swift

    public func validate(delegate:ValidationDelegate)

    Return Value

    No return value.

  • This method validates all fields in validator and sets any errors to errors parameter of callback.

    Declaration

    Swift

    public func validate(callback:(errors:[UITextField:ValidationError])->Void) -> Void

    Parameters

    callback

    A closure which is called with errors, a dictionary of type UITextField:ValidationError.

    Return Value

    No return value.