Aura\Filter\Rule\Validate\Alpha

Complexity

Total Complexity

2

Size/Duplication

Total Lines	23
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	0

Test Coverage

Coverage

100%

Importance

Changes	1
Bugs	0	Features	0

1 Method

Rating	Name	Duplication	Size	Complexity
A	__invoke()	0	9	2

<?php
/**
 *
 * This file is part of Aura for PHP.
 *
 * @license http://opensource.org/licenses/bsd-license.php BSD
 *
 */
namespace Aura\Filter\Rule\Validate;

/**
 *
 * Validates that the value is letters only (upper or lower case).
 *
 * @package Aura.Filter
 *
 */
class Alpha
{
    /**
     *
     * Validates that the value is letters only (upper or lower case).
     *
     * @param object $subject The subject to be filtered.
     *
     * @param string $field The subject field name.
     *
     * @return bool True if valid, false if not.
     *
     */
    public function __invoke($subject, $field)
    {
        $value = $subject->$field;
        if (! is_scalar($value)) {
            return false;
        }

        return (bool) preg_match('/^[\p{L}]+$/u', $value);
    }
}