NAME

Mojolicious::Validator - Validate values

SYNOPSIS

  use Mojolicious::Validator;
  my $validator = Mojolicious::Validator->new;
  my $v = $validator->validation;
  $v->input({foo => 'bar'});
  $v->required('foo')->like(qr/ar$/);
  say $v->param('foo');

DESCRIPTION

Mojolicious::Validator validates values for Mojolicious.

CHECKS

These validation checks are available by default.

equal_to

  $v = $v->equal_to('foo');

String value needs to be equal to the value of another field.

in

  $v = $v->in('foo', 'bar', 'baz');

String value needs to match one of the values in the list.

like

  $v = $v->like(qr/^[A-Z]/);

String value needs to match the regular expression.

num

  $v = $v->num;
  $v = $v->num(2, 5);
  $v = $v->num(-3, 7);
  $v = $v->num(2, undef);
  $v = $v->num(undef, 5);

String value needs to be a non-fractional number (positive or negative) and if provided in the given range.

size

  $v = $v->size(2, 5);
  $v = $v->size(2, undef);
  $v = $v->size(undef, 5);

String value length or size of Mojo::Upload object in bytes needs to be between these two values.

upload

  $v = $v->upload;

Value needs to be a Mojo::Upload object, representing a file upload.

FILTERS

These filters are available by default.

not_empty

  $v = $v->optional('foo', 'not_empty');

Remove empty string values and treat them as if they had not been submitted.

trim

  $v = $v->optional('foo', 'trim');

Trim whitespace characters from both ends of string value with "trim" in Mojo::Util.

ATTRIBUTES

Mojolicious::Validator implements the following attributes.

checks

  my $checks = $validator->checks;
  $validator = $validator->checks({size => sub ($v, $name, $value, @args) {...}});

Registered validation checks, by default only "equal_to", "in", "like", "num", "size" and "upload" are already defined.

filters

  my $filters = $validator->filters;
  $validator  = $validator->filters({trim => sub {...}});

Registered filters, by default only "not_empty" and "trim" are already defined.

METHODS

Mojolicious::Validator inherits all methods from Mojo::Base and implements the following new ones.

add_check

  $validator = $validator->add_check(size => sub ($v, $name, $value, @args) {...});

  $validator->add_check(foo => sub ($v, $name, $value, @args) {
    ...
    return undef;
  });

add_filter

  $validator = $validator->add_filter(trim => sub ($v, $name, $value) {...});

  $validator->add_filter(foo => sub ($v, $name, $value) {
    ...
    return $value;
  });

new

  my $validator = Mojolicious::Validator->new;

Construct a new Mojolicious::Validator object.

validation

  my $v = $validator->validation;

Build Mojolicious::Validator::Validation object to perform validations.

  my $v = $validator->validation;
  $v->input({foo => 'bar'});
  $v->required('foo')->size(1, 5);
  say $v->param('foo');