WS\Utils\Collections\Functions\Group\Aggregator\Avg::__invoke()

Complexity

Conditions	3
Paths	4

Size

Total Lines	12
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	8
CRAP Score	3.0123

Importance

Changes	2
Bugs	0	Features	0

<?php
    public function __invoke(iterable $collection)
    {
        $acc = null;
        $cnt = 0;
        foreach ($collection as $element) {
            $acc += ObjectFunctions::getPropertyValue($element, $this->sourceKey);
            $cnt++;
        }
        if (!$cnt) {
            return null;
        }
        return $acc / $cnt;
    }