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--------------------------------------------------------------------------------
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HTML::FormHandler::Manual::Errors(3pm) User Contributed Perl Documentation HTML::FormHandler::Manual::Errors(3pm)
NAME
HTML::FormHandler::Manual::Errors - FormHandler error methods
VERSION
version 0.40013
SYNOPSIS
Manual Index
Errors and error messages for HTML::FormHandler.
DESCRIPTION
Errors are added to field or form objects by the field 'add_error' method or the form 'add_form_error' method. FormHandler will perform the
'add_error' for you for built-in validation or 'apply' actions. When performing your own validation in a validation method, you must do the
'add_error' yourself.
Errors, along with 'input' and 'value' attributes, are collected in the FormHandler 'result' objects. A number of error retrieving methods
are delegated to the field and form classes.
The existence (or not) of errors determines whether or not the form has been 'validated'.
Form methods
errors
Returns an array of localized error strings (both field and form errors):
my @errors = $form->errors;
has_errors
Both 'form' errors and errors from the tree of subfields
if( $form->has_errors ) {
<do something>
}
form_errors, all_form_errors
Returns an arrayref / array of error strings on the form (not including field errors).
foreach my $err ( $self->all_form_errors ) {
$output .= "<span class="error">$err</span>";
}
has_form_errors
Does the form have form_errors?
add_form_error
Add an error to the form which is not associated with a specific field.
sub validate {
my $self = shift;
unless( <some condition> ) {
$self->add_form_error('....');
}
}
push_form_errors
Add a non-localized error to the form.
Field methods
The most common error method is probably 'add_error', which you use in the validation process.
sub validate_foo {
my ( $self, $field ) = @_;
unless ( <some_condition> ) {
$field->add_error('Error condition');
}
}
errors
Returns an array of error strings.
has_errors
Does the field have errors? Note that a compound field that contains subfields with errors will not return true for this method. If you
want to know if there are errors in the subfields, do 'has_error_fields'.
num_errors
add_error
Add an error to the field. Localization is performed.
push_errors
Add an error without localization.
error_fields
In a compound field (and its subclasses, like 'Repeatable'), the list of fields with errors.
Result methods
The input, value, and error attributes are actually stored in the result objects. Although most of the methods are delegated to the form
and field classes, there are times, such as when rendering (because you might be rendering a result that's been peeled off of the form
object), that you may need to use result methods.
These are the main methods that you might need to use.
has_errors
errors
error_results
The results with errors; 'error_fields' is a wrapper around this.
Messages
The base field class and the field subclasses have some 'built-in' error messages. These can be modified by setting the 'messages' hashref
in the form or the individual fields.
When a message is retrieved in a field with "$field->get_message('upload_file_')" for example, the 'get_message' method will look first in
user-set field specific messages, then in user-supplied form messages, finally in messages provided by the field classes.
package MyApp::Form;
use HTML::FormHandler::Moose;
extends 'HTML::FormHandler';
sub build_messages {
return { required => '....', my_message => '....' };
}
...
my $form = MyApp::Form->new( messages => { required => '...', ...} );
...
has_field 'my_field' => ( messages => { required => 'Please provide a my_field' },
required => 1 );
AUTHOR
FormHandler Contributors - see HTML::FormHandler
COPYRIGHT AND LICENSE
This software is copyright (c) 2012 by Gerda Shank.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
perl v5.14.2 2012-06-25 HTML::FormHandler::Manual::Errors(3pm)