skeeks\cms\widgets\formInputs\StorageImage::getJsonString PHP Method

    public function getJsonString()
    {
        return Json::encode(['backendUrl' => UrlHelper::construct('cms/admin-storage-files/link-to-model')->enableAdmin()->toString(), 'modelId' => $this->model->id, 'modelClassName' => $this->model->className(), 'modelAttribute' => $this->attribute]);
    }