locomotivemtl / charcoal-property

     * @return ArrayAccess|DescribableInterface|mixed

     * @throws UnexpectedValueException If the structure is invalid.

     */

    public function toModel($model = null)

    {

        if ($model) {

            $structure = $this->structureModelFactory()->create($model);

            if (!$structure instanceof ArrayAccess) {

                throw new UnexpectedValueException(sprintf(

                    'Structure [%s] must implement [%s]',

                    $model,

                    ArrayAccess::class

                ));

            }

            return $structure;

        }

        return $this->structureProto();

    }

    /**

     * PropertyInterface::save().

     * @throws UnexpectedValueException If the structure is invalid.

     * @return ArrayAccess

     */

    private function createStructureModel()

    {

        $structClass = $this->getStructureModelClass();

        $structure   = $this->structureModelFactory()->create($structClass);

        if (!$structure instanceof ArrayAccess) {

            throw new UnexpectedValueException(sprintf(

                'Structure [%s] must implement [%s]',

                $structClass,

                ArrayAccess::class

            ));

        }

        return $structure;

    }

    /**

     * Create a data-model structure.