public static Topic fromTopic(core.entities.Topic topic) {
Topic topicModel = new Topic();
topicModel.setTopicId(topic.getTopicId());
topicModel.setDescription(topic.getDescription());
topicModel.setCategory(topic.getCategory());
topicModel.setChoices(new ArrayList<Choice>(topic.getChoices()));
topicModel.setDateTime(topic.getDateTime().toString());
topicModel.setUserId(topic.getUserId());
return topicModel;
}
