用zend 2的tableGateway进行插入 [英] Doing inserts with zend 2's tableGateway

问题描述

我使用zf2的tableGateway，我不确定它导致的设计。

I using zf2's tableGateway and I'm unsure of the design it leads to.

以下是如何使用zf2的tableGateway进行插入的典型示例从文档）：

Here is the canonical example of how to use zf2's tableGateway to do an insert (this from the docs):

public function saveAlbum(Album $album)
    {
        $data = array(
            'artist' => $album->artist,
            'title'  => $album->title,
        );

        $id = (int)$album->id;
        if ($id == 0) {
            $this->tableGateway->insert($data);
        } else {
            if ($this->getAlbum($id)) {
                $this->tableGateway->update($data, array('id' => $id));
            } else {
                throw new \Exception('Form id does not exist');
            }
        }
    }

但定义$数据数组似乎是多余的，因为我已经有一个这样的专辑类：

But defining the $data array seems redundant because I already have an Album class that looks like this:

class Album
{
    public $id;
    public $artist;
    public $title;

    public function exchangeArray($data)
    {
        $this->id     = (isset($data['id'])) ? $data['id'] : null;
        $this->artist = (isset($data['artist'])) ? $data['artist'] : null;
        $this->title  = (isset($data['title'])) ? $data['title'] : null;
    }
}

在我自己的项目中，我有一个约25属性（25列的表）。需要使用25个属性定义该类似乎是多余的，而且在实现tableGateway的类的方法中也将$ data数组写入每个属性的元素。我错过了什么吗？

In my own project I have a model with about 25 properties (a table with 25 columns). It seems redundant to have to define the class with 25 properties and than also write a $data array inside of the method of a class implementing tableGateway with an element for every one of those properites. Am I missing something?

推荐答案

你可能想看看我的 QuickStart 101教程。

基本上你可以做：

saveAlbum(Album $albumObject) 
{
    $hydrator   = new ClassMethods(false);
    $albumArray = $hydrator->extract($albumObject);
    // v-- not too sure if that one-liner works; normal if() in case it doesn't
    isset($albumArray['id']) ? unset($albumArray['id']) :; 

    // insert into tablegateway
}

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