CakePHP Saving 有很多关联

CakePHP Saving hasMany association

我有一个产品需要将图像路径保存到另一个 table。 product hasMany images.

这是我的add()

if ($this->request->is('post')) {
    // https://book.cakephp.org/3.0/en/orm/saving-data.html#saving-associations
    $save = $this->Products->newEntity(
        $this->request->getData(),
        ['associated'=>$associated]
    );

    $this->log('JUST AFTER PATCH'.$save);
    $save->last_modified = Time::now();
    $save->created = Time::now();

    //sort out assoc.
    $path = $this->saveImageGetPath($this->request->data['images']);

    $save['images'][] = [
        'path' => $path,
        'alt_description' => $product->name . Time::now() . 'img',
        'position' => $this->request->data['position']
    ];

    $save->isDirty(true);
    $this->log('JUST BEFORE SAVE'.$save);
    if ($this->Products->save($save, [
        'associated'=> ['Shoes', 'Images', 'Products_has_categories']
    ])) {

这是输出到日志的数组

{
    "name":"xlc",
    "brands_id":1,
    "description":"csvfd",
    "type":"s",
    "position":"0",
    "shoe":{
        "heels_id":1,
        "closures_id":1,
        "materials_upper_id":1,
        "materials_lining_id":1,
        "materials_sole_id":1
    },
    "products_has_categories":{
        "categories_id":"1"
    },
    "images":[
        {
            "path":"\/webroot\/img\/products\/img1503289958.jpg",
            "alt_description":"8\/21\/17, 4:32 AMimg",
            "position":"0"
        }
    ],
    "last_modified":"2017-08-21T04:32:38+00:00",
    "created":"2017-08-21T04:32:38+00:00"
}

这是 table Image 协会

$this->hasMany('Images', [
    'foreignKey' => 'products_id',
    'dependent' => true,
]);

图片上传正常,可以获取路径。它只是没有为此触发 SQL 声明,我很困惑为什么 请注意,hasOne 关联。确实有效,所以我可以保存 assoc。但不是这个 hasMany

你将图像作为一个数组添加到数据中,那是行不通的,ORM 将只保存实体对象,即你必须创建一个 \Cake\Datasource\EntityInterface 的实例(这就是entity creation/patching 进程将自动处理传递的数据。

$save['images'][] = $this->Products->Images->newEntity([
    'path' => $path,
    'alt_description' => $product->name . Time::now() . 'img',
    'position' => $this->request->data['position']
]);

您还需要确保 images 属性 被标记为脏,否则 ORM 将忽略它(这也在实体 creation/patching 中自动完成)过程)。您的 isDirty(true) 调用不会执行任何操作,因为 isDirty() 不是 setter,而是 getter.

$save->setDirty('images', true); // use dirty('images', true) in CakePHP < 3.4

另外,不要记录 JSON 表示,最好使用 debug(),或者至少 var_export(),以便保留实体提供的调试信息。

另见