Mandango embedded woes

gistfile1.php

   public function setSegments($segments)
    {
        $mandango = $this->getMandango();

        $segments = array_map(function($name) use ($mandango) {
            return $mandango->create('Model\Intervention\InterventionSetSegment')->setName($name);
        }, $segments);

        $segmentGroup = parent::getSegments();
        $segmentGroup->remove($segmentGroup->all());
        $this->save();
        $segmentGroup->add($segments);

        return $this;
    }