HTML::Widget::Constraint(3pm) User Contributed Perl Documentation HTML::Widget::Constraint(3pm)NAME
HTML::Widget::Constraint - Constraint Base Class
SYNOPSIS
my $c = $widget->constraint( $type, @names );
$c->message('Validation error.');
$c->names(@names);
$c->not(1);
DESCRIPTION
Constraint Base Class.
METHODS
default_message
Arguments: $message
Return Value: $message
Default error message for failing constraints.
init
Arguments: $widget
Called once when process() gets called for the first time.
javascript
Arguments: $id
Should return JavaScript for client side validation and the like.
msg
message
Arguments: $message
Contains the validation error message.
mk_message
Arguments: $message
Returns a validation error message.
names
Arguments: @names
Return Value: @names
Contains names of params to test.
not
Arguments: $bool
Return Value: $bool
Negate constraint.
prepare
Arguments: $widget
Called every time process() gets called.
process
Arguments: $widget, $params, @uploads
Return Value: @errors
Validates params and returns a arrayref containing HTML::Widget::Error objects representing failed constraints.
process_js
Arguments: $id
Returns a hashref containing JavaScripts for client side validation and the like.
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
Arguments: $value
Return Value: $bool
Validates a value and returns 1 or 0.
AUTHOR
Sebastian Riedel, "sri@oook.de"
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(3pm)
Check Out this Related 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)
Hello,
I am trying to use data validation with a program. I have everything else working fine. I just can't figure out what I am doing wrong with the data validation in one of my files. Here is the code:
# data validation loop
while :
do
# get input from keyboard
... (2 Replies)
Hi,
I was compiling few C programs in the unix server and getting the following error message
rm: /home/a0xxx28/AVT/SEEDLIBRARYDB/LIB/*.a non-existent
proc MODE=ANSI CODE=ANSI_C INCLUDE=/home/a0xxx28/PVT/SEEDLIBRARYDB/INCLUDE
INCLUDE=/home/a0xxx28/PVT/SEEDLIBRARY/INCLUDE ... (1 Reply)
Hi,
I am getting the below error
: error at the if condition start and when I print the
value of TEST, it displays two values as below
/home/xyz/out/file1.txt
/home/xyz/out/file2.txt
if ; then
mv $TEST $TARGETDIR/
fi
Tried by enclosing it in double quotes "$TEST",... (4 Replies)