.\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
.\"
.\" Standard preamble:
.\" ========================================================================
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
..
.de Vb \" Begin verbatim text
.ft CW
.nf
.ne \\$1
..
.de Ve \" End verbatim text
.ft R
.fi
..
.\" Set up some character translations and predefined strings.  \*(-- will
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
.\" double quote, and \*(R" will give a right double quote.  \*(C+ will
.\" give a nicer C++.  Capital omega is used to do unbreakable dashes and
.\" therefore won't be available.  \*(C` and \*(C' expand to `' in nroff,
.\" nothing in troff, for use with C<>.
.tr \(*W-
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
.ie n \{\
.    ds -- \(*W-
.    ds PI pi
.    if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
.    if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\"  diablo 12 pitch
.    ds L" ""
.    ds R" ""
.    ds C` ""
.    ds C' ""
'br\}
.el\{\
.    ds -- \|\(em\|
.    ds PI \(*p
.    ds L" ``
.    ds R" ''
.    ds C`
.    ds C'
'br\}
.\"
.\" Escape single quotes in literal strings from groff's Unicode transform.
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\"
.\" If the F register is >0, we'll generate index entries on stderr for
.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
.\" entries marked with X<> in POD.  Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
.\"
.\" Avoid warning from groff about undefined register 'F'.
.de IX
..
.if !\nF .nr F 0
.if \nF>0 \{\
.    de IX
.    tm Index:\\$1\t\\n%\t"\\$2"
..
.    if !\nF==2 \{\
.        nr % 0
.        nr F 2
.    \}
.\}
.\" ========================================================================
.\"
.IX Title "HTML::FormHandler::Manual::FromDFV 3pm"
.TH HTML::FormHandler::Manual::FromDFV 3pm "2017-11-11" "perl v5.26.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
HTML::FormHandler::Manual::FromDFV \- converting from Data::FormValidator
.SH "VERSION"
.IX Header "VERSION"
version 0.40068
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
Manual Index
.PP
Cheatsheet for converting from Data::FormValidator.
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Information that's useful when switching from Data::FormValidator to
HTML::FormHandler. There's not a lot here yet, so if you have something
to add, patches are welcome.
.PP
In a general way, FormHandler doesn't have nearly so many \*(L"special\*(R"
checks as Data::FormValidator. It would be possible to implement many
of them, but there hasn't been much demand for them. So far FormHandler
users seem to be satisfied with the \*(L"do your own checks in a Perl method\*(R"
solution. Because of the greater complexity of FormHandler's data model \-
with Repeatable arrays and nested compounds, etc \- it's somewhat harder
to do some of them automatically.
.SH "Differences/conversions"
.IX Header "Differences/conversions"
.IP "dependencies" 4
.IX Item "dependencies"
In FormHandler, 'dependency' is the equivalent of 'dependency_group',
without the key names.
.Sp
The other variations of dependencies in \s-1DFV\s0 are not implemented in
FormHandler, and would normally be done in a form's 'validate' sub.
.IP "trim, filters" 4
.IX Item "trim, filters"
A 'trim' filter is installed by default in FormHandler; it's a
special version of an apply action, and can be set to a transform
or Moose type. See the documentation in HTML::FormHandler::Field#trim.
.Sp
Transforms and inflations/deflations do not change what is presented in
the form unless you set the 'fif_from_value' flag on the field.
.IP "FV_length_between, FV_max_length, FV_min_length" 4
.IX Item "FV_length_between, FV_max_length, FV_min_length"
Use text fields with 'minlength' and 'maxlength' attributes.
.IP "FV_eq_with" 4
.IX Item "FV_eq_with"
Perform your own checks in the form 'validate' sub.
.Sp
.Vb 5
\&    sub validate {
\&        my $self = shift;
\&        if( $self\->field(\*(Aqone\*(Aq)\->value eq $self\->field(\*(Aqtwo\*(Aq)\->value ) {
\&        }
\&    }
.Ve
.SH "Constraints"
.IX Header "Constraints"
The simple constraints from Data::FormValidator::Constraints can be used
directly in a FormHandler form:
.PP
.Vb 3
\&    use Data::FormValidator::Constraints (\*(Aqmatch_state\*(Aq);
\&    has_field \*(Aqmy_state\*(Aq => (
\&        apply => [ { check => \e&match_state, message => \*(AqInvalid State\*(Aq } ] );
.Ve
.IP "email" 4
.IX Item "email"
Use the 'Email' field type, or use the \s-1FH\s0 Moose Type, 'email'.
.Sp
.Vb 4
\&     has_field \*(Aqemail\*(Aq => ( type => \*(AqEmail\*(Aq );
\&     \-\- or \-\-
\&     use HTML::FormHandler::Types (\*(AqEmail\*(Aq);
\&     has_field \*(Aqemail\*(Aq => ( apply => [ Email ] );
.Ve
.SH "AUTHOR"
.IX Header "AUTHOR"
FormHandler Contributors \- see HTML::FormHandler
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
This software is copyright (c) 2017 by Gerda Shank.
.PP
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.