Underscore\Mutator\GroupByMutator

Complexity

Total Complexity

2

Size/Duplication

Total Lines	21
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	1

Test Coverage

Coverage

100%

Importance

Changes	3
Bugs	0	Features	0

1 Method

Rating	Name	Duplication	Size	Complexity
A	__invoke()	0	10	2

<?php

namespace Underscore\Mutator;

use Underscore\Collection;
use Underscore\Mutator;

class GroupByMutator extends Mutator
{
    /**
     * Creates an object composed of keys generated from the results
     * of running each element of a collection through the callback
     *
     * @param Collection $collection
     * @param callable   $iterator
     * @return Collection
     */
    public function __invoke($collection, $iterator)
    {
        $newCollection = [];

        foreach ($collection as $value) {
            $newCollection[call_user_func($iterator, $value)][] = $value;
        }

        return $this->copyCollectionWith($collection, $newCollection);
    }
}