A validator that combines multiple validators. More...

#include <Wt/WStackedValidator.h>

Inheritance diagram for Wt::WStackedValidator:

Public Member Functions
	WStackedValidator ()
	Creates an empty stacked validator.

virtual	~WStackedValidator ()
	Destructor.

void	addValidator (const std::shared_ptr< WValidator > &validator)
	Adds a validator. More...

void	insertValidator (int index, const std::shared_ptr< WValidator > &validator)
	Inserts a validator to the given index. More...

void	removeValidator (const std::shared_ptr< WValidator > &validator)
	Removes the given validator.

int	size () const
	Returns the number of validators.

void	clear ()
	Removes all the validators.

Result	validate (const WString &input) const override
	Validates the given input. More...

std::string	javaScriptValidate () const override
	Creates a Javascript object that validates the input. More...

Public Member Functions inherited from Wt::WValidator
	WValidator (bool mandatory=false)
	Creates a new validator. More...

virtual	~WValidator ()
	Destructor. More...

void	setMandatory (bool how)
	Sets if input is mandatory. More...

bool	isMandatory () const
	Returns if input is mandatory.

void	setInvalidBlankText (const WString &text)
	Sets the message to display when a mandatory field is left blank. More...

WString	invalidBlankText () const
	Returns the message displayed when a mandatory field is left blank. More...

virtual WString	format () const
	Returns the validator format. More...

virtual std::string	inputFilter () const
	Returns a regular expression that filters input. More...

Additional Inherited Members
Public Types inherited from Wt::WValidator
typedef ValidationState	State
	Typedef for enum Wt::ValidationState.

Detailed Description

A validator that combines multiple validators.

This validator allows you to combine multiple validators into a single one.

For a value to be considered valid by this validator, it must be valid for all of the validators added to it. In case the value is invalid for multiple validators, the validator used to generate the error message is the one with the lowest index.

Member Function Documentation

◆ addValidator()

void Wt::WStackedValidator::addValidator ( const std::shared_ptr< WValidator > & validator )

Adds a validator.

This adds a validator at the last index if the validator is not already present in the list of validators.

◆ insertValidator()

void Wt::WStackedValidator::insertValidator	(	int	index,
		const std::shared_ptr< WValidator > &	validator
	)

Inserts a validator to the given index.

This inserts a validator at the given index, or at last index if the given index is bigger than the number of validators. Does nothing if the validator is already present in the list of validators.

◆ javaScriptValidate()

std::string Wt::WStackedValidator::javaScriptValidate ( ) const

overridevirtual

Creates a Javascript object that validates the input.

The JavaScript expression should evaluate to an object which contains a validate(text) function, which returns an object that contains the following two fields:

fields: a boolean valid,
a message that indicates the problem if not valid.

Returns an empty string if the validator does not provide a client-side validation implementationq.

See also: inputFilter()

Reimplemented from Wt::WValidator.

◆ validate()

Wt::WValidator::Result Wt::WStackedValidator::validate ( const WString & input ) const