NAME

MojoX::Validator - Validator for Mojolicious

SYNOPSIS

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

    # Fields
    $validator->field('phone')->required(1)->regexp(qr/^\d+$/);
    $validator->field([qw/firstname lastname/])
      ->each(sub { shift->required(1)->length(3, 20) });

    # Groups
    $validator->field([qw/password confirm_password/])
      ->each(sub { shift->required(1) });
    $validator->group('passwords' => [qw/password confirm_password/])->equal;

    # Conditions
    $validator->field('document');
    $validator->field('number');
    $validator->when('document')->regexp(qr/^1$/)
      ->then(sub { shift->field('number')->required(1) });

    $validator->validate($values_hashref);
    my $errors_hashref = $validator->errors;
    my $validated_values_hashref = $validator->values;

DESCRIPTION

Data validator. Validates only the data. NO form generation, NO javascript generation, NO other stuff that does something else. Only data validation!

FEATURES

    * Validates data that is presented as a hash reference
    * Multiple values
    * Field registration
    * Group validation
    * Conditional validation

CONVENTIONS

    * A value is considered empty when its value is B<NOT> C<undef>, C<''> or
    contains only spaces
    * If a value is not required and during validation is empty there is B<NO>
    error
    * If a value is passed as an array reference and an appropriate field is
    not multiple, than only the first value is taken, otherwise every value of
    the array reference is checked.

ATTRIBUTES

trim

Trim field values. ON by default.

METHODS

new

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

Created a new MojoX::Validator object.

clear_errors

    $validator->clear_errors;

    Clear errors.

field

    $validator->field('foo');               # MojoX::Validator::Field object is returned
    $validator->field('foo');               # Already created field object is returned

    $validator->field(qw/foo bar baz/);     # MojoX::Validator::Bulk object is returned
    $validator->field([qw/foo bar baz/]);   # MojoX::Validator::Bulk object is returned

When a single value is passed creates MojoX::Validator::Field object or returns an already created field object.

When an array or an array reference is passed returns MojoX::Validator::Bulk object. You can call each method to apply setting to multiple fields.

    $validator->field(qw/foo bar baz/)->each(sub { shift->required(1) });

group

    $validator->field(qw/foo bar/)->each(sub { shift->required(1) });
    $validator->group('all_or_none' => [qw/foo bar/])->equal;

Registers a group constraint that will be called on group of fields. If group validation failes the errors hashref will have the group name with an appropriate error message, NOT fields' names.

when

    $validator->field('document');
    $validator->field('number');
    $validator->when('document')->regexp(qr/^1$/)
      ->then(sub { shift->field('number')->required(1) });

Registers a condition that is called when some conditions are met. You can do whatever you want in condition's callback. Validation will be remade.

validate

    $validator->validate({a => 'b'});
    $validator->validate({a => ['b', 'c']});
    $validator->validate({a => ['b', 'c'], b => 'd'});

Accepts and validated a hash reference that represents data that is being validated. Hash values can be either a SCALAR value or an ARRAREF value, which means that a field has multiple values. In case of an array reference, it is checked if a field can have multiple values. Otherwise only the first value is accepted and returned when values method is called.

errors

    $validator->errors; # {a => 'Required'}

Returns a hash reference of errors.

values

    $validator->values;

Returns a hash reference of validated values. Only registered fields are returned, that means that if some other values were passed to the validate method they are ignored.

DEVELOPMENT

Repository

    http://github.com/vti/mojox-validator

AUTHOR

Viacheslav Tykhanovskyi, vti@cpan.org.

COPYRIGHT AND LICENSE

Copyright (C) 2010, Viacheslav Tykhanovskyi.

This program is free software, you can redistribute it and/or modify it under the terms of the Artistic License version 2.0.

cpanm MojoX::Validator

perl -MCPAN -e shell
install MojoX::Validator