Mojolicious::Validator::Validation(3pm)

NAME
Mojolicious::Validator::Validation - Perform validations

SYNOPSIS
  use Mojolicious::Validator;
  use Mojolicious::Validator::Validation;

  my $validator = Mojolicious::Validator->new;
  my $v = Mojolicious::Validator::Validation->new(validator => $validator);
  $v->input({foo => 'bar'});
  $v->required('foo')->in('bar', 'baz');
  say $v->param('foo');

DESCRIPTION
Mojolicious::Validator::Validation performs Mojolicious::Validator validation checks.

ATTRIBUTES
Mojolicious::Validator::Validation implements the following attributes.

  csrf_token
  my $token = $v->csrf_token;
  $v        = $v->csrf_token('fa6a08...');

CSRF token.

  input
  my $input = $v->input;
  $v        = $v->input({foo => 'bar', baz => [123, 'yada']});

Data to be validated.

  output
  my $output = $v->output;
  $v         = $v->output({foo => 'bar', baz => [123, 'yada']});

Validated data.

  topic
  my $topic = $v->topic;
  $v        = $v->topic('foo');

Name of field currently being validated.

  validator
  my $v = $v->validator;
  $v    = $v->validator(Mojolicious::Validator->new);

Mojolicious::Validator object this validation belongs to.

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

  check
  $v = $v->check('size', 2, 7);

Perform validation check on all values of the current "topic", no more checks will be performed on them after the first one failed. All checks from "CHECKS" in Mojolicious::Validator are supported.

  csrf_protect
  $v = $v->csrf_protect;

Validate "csrf_token" and protect from cross-site request forgery.

  error
  my $err = $v->error('foo');
  $v      = $v->error(foo => ['custom_check']);
  $v      = $v->error(foo => [$check, $result, @args]);

Get or set details for failed validation check, at any given time there can only be one per field.

  # Details about failed validation
  my ($check, $result, @args) = @{$v->error('foo')};

  # Force validation to fail for a field without performing a check
  $v->error(foo => ['some_made_up_check_name']);

  every_param
  my $values = $v->every_param;
  my $values = $v->every_param('foo');

Similar to "param", but returns all values sharing the same name as an array reference.

  # Get first value
  my $first = $v->every_param('foo')->[0];

  failed
  my $names = $v->failed;

Return an array reference with all names for values that failed validation.

  # Names of all values that failed
  say for @{$v->failed};

  has_data
  my $bool = $v->has_data;

Check if "input" is available for validation.

  has_error
  my $bool = $v->has_error;
  my $bool = $v->has_error('foo');

Check if validation resulted in errors, defaults to checking all fields.

  is_valid
  my $bool = $v->is_valid;
  my $bool = $v->is_valid('foo');

Check if validation was successful and field has a value, defaults to checking the current "topic".

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

Change validation "topic" and apply filters. All filters from "FILTERS" in Mojolicious::Validator are supported.

  # Trim value and check size
  $v->optional('user', 'trim')->size(1, 15);

  param
  my $value = $v->param;
  my $value = $v->param('foo');

Access validated values, defaults to the current "topic". If there are multiple values sharing the same name, and you want to access more than just the last one, you can use "every_param".

  # Get value right away
  my $user = $v->optional('user')->size(1, 15)->param;

  passed
  my $names = $v->passed;

Return an array reference with all names for values that passed validation.

  # Names of all values that passed
  say for @{$v->passed};

  required
  $v = $v->required('foo');
  $v = $v->required('foo', @filters);

Change validation "topic", apply filters, and make sure a value is present. All filters from "FILTERS" in Mojolicious::Validator are supported.

  # Trim value and check size
  $v->required('user', 'trim')->size(1, 15);

CHECKS
In addition to the "ATTRIBUTES" and "METHODS" above, you can also call validation checks provided by "validator" on Mojolicious::Validator::Validation objects, similar to "check".

  # Call validation checks
  $v->required('foo')->size(2, 5)->like(qr/^[A-Z]/);
  $v->optional('bar')->equal_to('foo');
  $v->optional('baz')->in('test', '123');

  # Longer version
  $v->required('foo')->check('size', 2, 5)->check('like', qr/^[A-Z]/);

SEE ALSO
Mojolicious, Mojolicious::Guides, <https://mojolicious.org>.