Mcustiel\SimpleRequest\Validator\UniqueItems

Complexity

Total Complexity

7

Size/Duplication

Total Lines	36
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	1

Test Coverage

Coverage

93.75%

Importance

Changes	6
Bugs	3	Features	3

2 Methods

Rating	Name	Duplication	Size	Complexity
A	validate()	0	12	3
A	checkIfAllUniques()	0	15	4

<?php
/**
 * This file is part of php-simple-request.
 *
 * php-simple-request is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * php-simple-request is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with php-simple-request.  If not, see <http://www.gnu.org/licenses/>.
 */
namespace Mcustiel\SimpleRequest\Validator;

/**
 * Checks if all the elements of a given array are unique values.
 *
 * @author mcustiel
 */
class UniqueItems extends AbstractEmptySpecificationValidator
{
    /**
     * {@inheritdoc}
     *
     * @see \Mcustiel\SimpleRequest\Interfaces\ValidatorInterface::validate()
     */
    public function validate($value)
    {
        if (!is_array($value)) {
            return false;
        }

        if (empty($value)) {
            return true;
        }

        return $this->checkIfAllUniques($value);
    }

    private function checkIfAllUniques($value)
    {
        $keys = array_keys($value);
        $count = count($keys);

        for ($i = 0; $i < $count - 1; $i++) {
            for ($j = $i + 1; $j < $count; $j++) {
                if ($value[$keys[$i]] == $value[$keys[$j]]) {
                    return false;
                }
            }
        }

        return true;
    }
}