Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
Data::FormValidator::CUserrContributedtPerFormValidator::ConstraintsFactory(3)

NAME
       Data::FormValidator::ConstraintsFactory - Module	to create constraints
       for HTML::FormValidator.

DESCRIPTION
       This module contains functions to help generate complex constraints.

       If you are writing new code, take a look	at
       Data::FormValidator::Constraints::MethodsFactory	instead. It's a	modern
       alternative to what's here, offering improved names and syntax.

SYNOPSIS
	   use Data::FormValidator::ConstraintsFactory qw( :set	:bool );

	   constraints => {
	   param1 => make_or_constraint(
		   make_num_set_constraint( -1,	( 1 .. 10 ) ),
		   make_set_constraint(	1, ( 20	.. 30 )	),
		 ),
	   province => make_word_set_constraint( 1, "AB	QC ON TN NU" ),
	   bid	=> make_range_constraint( 1, 1,	10 ),
	   }

BOOLEAN	CONSTRAINTS
       Those constraints are available by using	the ":bool" tag.

   make_not_constraint(	$c1 )
       This will create	a constraint that will return the negation of the
       result of constraint $c1.

   make_or_constraint( @constraints )
       This will create	a constraint that will return the result of the	first
       constraint that return an non false result.

   make_and_constraint(	@constraints )
       This will create	a constraint that will return the result of the	first
       constraint that return an non false result only if all constraints
       returns a non-false results.

SET CONSTRAINTS
       Those constraints are available by using	the ":set" tag.

   make_set_constraint(	$res, @elements	)
       This will create	a constraint that will return $res if the value	is one
       of the @elements	set, or	the negation of	$res otherwise.

       The "eq"	operator is used for comparison.

   make_num_set_constraint( $res, @elements )
       This will create	a constraint that will return $res if the value	is one
       of the @elements	set, or	the negation of	$res otherwise.

       The "=="	operator is used for comparison.

   make_word_set_constraint( $res, $set	)
       This will create	a constraint that will return $res if the value	is a
       word in $set, or	the negation of	$res otherwise.

   make_cmp_set_constraint( $res, $cmp,	@elements )
       This will create	a constraint that will return $res if the value	is one
       of the @elements	set, or	the negation of	$res otherwise.

       $cmp is a function which	takes two argument and should return true or
       false depending if the two elements are equal.

NUMERICAL LOGICAL CONSTRAINTS
       Those constraints are available by using	the ":num" tag.

   make_clamp_constraint( $res,	$low, $high )
       This will create	a constraint that will return $res if the value	is
       between $low and	$high bounds included or its negation otherwise.

   make_lt_constraint( $res, $bound )
       This will create	a constraint that will return $res if the value	is
       lower than $bound, or the negation of $res otherwise.

   make_le_constraint( $res, $bound )
       This will create	a constraint that will return $res if the value	is
       lower or	equal than $bound, or the negation of $res otherwise.

   make_gt_constraint( $res, $bound )
       This will create	a constraint that will return $res if the value	is
       greater than $bound, or the negation of $res otherwise.

   make_ge_constraint( $res, $bound )
       This will create	a constraint that will return $res if the value	is
       greater or equal	than $bound, or	the negation of	$res otherwise.

OTHER CONSTRAINTS
   make_length_constraint($max_length)
       This will create	a constraint that will return true if the value	has a
       length of less than or equal to $max_length

SEE ALSO
       Data::FormValidator(3)

AUTHOR
       Author: Francis J. Lacoste <francis.lacoste@iNsu.COM> Maintainer: Mark
       Stosberg	<mark@summersault.com>

COPYRIGHT
       Copyright (c) 2000 iNsu Innovations Inc.	 All rights reserved.

       This program is free software; you can redistribute it and/or modify it
       under the terms as perl itself.

perl v5.24.1			  20Data::FormValidator::ConstraintsFactory(3)

NAME | DESCRIPTION | SYNOPSIS | BOOLEAN CONSTRAINTS | SET CONSTRAINTS | NUMERICAL LOGICAL CONSTRAINTS | OTHER CONSTRAINTS | SEE ALSO | AUTHOR | COPYRIGHT

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=Data::FormValidator::ConstraintsFactory&sektion=3&manpath=FreeBSD+12.0-RELEASE+and+Ports>

home | help