Nextras\Orm\Relationships\HasOne::set PHP Méthode

    public function set($value, $allowNull = false)
    {
        if ($this->updatingReverseRelationship) {
            return null;
        }
        $value = $this->createEntity($value, $allowNull);
        if ($this->isChanged($value)) {
            $this->modify();
            $oldValue = $this->value;
            if ($oldValue === false) {
                $primaryValue = $this->getPrimaryValue();
                $oldValue = $primaryValue !== null ? $this->getTargetRepository()->getById($primaryValue) : null;
            }
            $this->updateRelationship($oldValue, $value, $allowNull);
        } else {
            $this->initReverseRelationship($value);
        }
        $this->primaryValue = $value && $value->isPersisted() ? $value->getValue('id') : null;
        $this->value = $value;
    }