html::widget::constraint::callbackonce(3pm) [debian man page]
HTML::Widget::Constraint::CallbackOnce(3pm) User Contributed Perl Documentation HTML::Widget::Constraint::CallbackOnce(3pm)NAME
HTML::Widget::Constraint::CallbackOnce - CallbackOnce Constraint
SYNOPSIS
my $c = $widget->constraint( 'CallbackOnce', 'foo', 'bar' )->callback(
sub {
my ($foo, $bar) = @_;
return 1 if $foo == $bar * 2;
});
DESCRIPTION
A callback constraint which will only be run once for each call of "process" in HTML::Widget.
METHODS
callback
cb
Arguments: &callback
Requires a subroutine reference used for validation, which will be passed a list of values corresponding to the constraint names.
"cb" is provided as an alias to "callback".
process
Overrides "process" in HTML::Widget::Constraint to ensure "validate" is only called once for each call of "validate".
render_errors
Arguments: @names
A list of element names for which an error should be displayed.
If this is not set, the default behaviour is for the error to be displayed for all of the Constraint's named elements.
validate
perform the actual validation.
AUTHOR
Carl Franks "cfranks@cpan.org"
LICENSE
This library is free software, you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.10.1 2007-03-01 HTML::Widget::Constraint::CallbackOnce(3pm)
Check Out this Related Man Page
HTML::FormFu::Constraint::DependOn(3pm) User Contributed Perl Documentation HTML::FormFu::Constraint::DependOn(3pm)NAME
HTML::FormFu::Constraint::DependOn - Multi-field Dependency Constraint
SYNOPSIS
type: DependOn
name: foo
others: bar
DESCRIPTION
If a value is submitted for the field this constraint is attached to, then a value must also be submitted for all fields named in "others"
in HTML::FormFu::Constraint::_others.
By default, if any of the named fields in "others" in HTML::FormFu::Constraint::_others are missing, an error will be attached to each
missing field. This behaviour can be changed by setting any of "attach_errors_to_base" in HTML::FormFu::Constraint::_others,
"attach_errors_to_others" in HTML::FormFu::Constraint::_others or "attach_errors_to" in HTML::FormFu::Constraint::_others.
This constraint doesn't honour the "not()" value.
SEE ALSO
Is a sub-class of, and inherits methods from HTML::FormFu::Constraint::_others, HTML::FormFu::Constraint
HTML::FormFu
AUTHOR
Carl Franks "cfranks@cpan.org"
LICENSE
This library is free software, you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.14.2 2011-05-10 HTML::FormFu::Constraint::DependOn(3pm)
Hello,
I have one requirement. We are getting fixed length file with trailer record on it.
We need to cleanse,validate and process the file.
As part of validation we have to do duplicate file check based on file name and trailer record.
I want to add the file name as last column to file,... (4 Replies)