如何在CakePHP3中列出hasMany关系中的对象？

我正在努力获取CakePHP3中hasMany关系的数据。我正在做一个基本的论坛，我现在的问题是关于类别和主题之间的关系。一个类别包含多个主题，而每个主题都属于一个类别。对于类别和主题，我使用了烘焙机制，并将关系添加到表中。这是分类表类的初始化方法：

public function initialize(array $config) {
    parent::initialize($config);

    $this->table('categories');
    $this->displayField('name');
    $this->primaryKey('id');

    $this->addBehavior('Timestamp');

    $this->hasMany('Topics', [
        'foreignKey' => 'category'
    ]);
}

以下是TopicsTable的相同内容：

public function initialize(array $config) {
    parent::initialize($config);

    $this->table('topics');
    $this->displayField('id');
    $this->primaryKey('id');

    $this->addBehavior('Timestamp');

    $this->belongsTo('Categories', [
        'foreignKey' => 'category'
    ]);
}

现在我想列出这样一个类别的主题（

Categories\view.cpt

）：

如何获取与当前选定类别相关的所有主题列表？

类别控制器：

$topics = $this->Category->Topic->find('list', [
    'keyField' => 'id',
    'valueField' => 'Topic.category'
])
->where(['category' => $category]);

public function view($id = null) {
    $category = $this->Categories->get($id, [
        'contain' => []
    ]);

    $this->set('category', $category);
    $this->set('_serialize', ['category']);

    $topics = $this->Categories->Topics->find()->where(['category' => $id]);
    $this->set('topics', $topics);
}

---

谢谢比尔的提示。以下是“类别”控制器中的“我的视图”方法：

$topics = $this->Category->Topic->find('list', [
    'keyField' => 'id',
    'valueField' => 'Topic.category'
])
->where(['category' => $category]);

public function view($id = null) {
    $category = $this->Categories->get($id, [
        'contain' => []
    ]);

    $this->set('category', $category);
    $this->set('_serialize', ['category']);

    $topics = $this->Categories->Topics->find()->where(['category' => $id]);
    $this->set('topics', $topics);
}