CakePHP 3.x dynamic finder method - cakephp-3.0

Question

I have this problem with a CakePHP 3 application
I am trying to get a category by it's slug and all related articles belonging to that category.
I am using dynamic finder method findBySlug in the Controller but it throws an error in the view.
Here is my code:
public function view($slug = null)
{
if (!$slug) {
throw new NotFoundException(__('Invalid category slug'));
}
$category = $this->Categories->findBySlug($slug, [
'contain' => [
'Articles'
]
]);
$this->set(compact('category'));
}
and the view:
<div class="categories view">
<h2><?= h($category->name); ?></h2>
<?php foreach ($category->articles as $article): ?>
<?php echo $article->title; ?>
<?php endforeach; ?>
Can anyone please provide or point me to a solution ?
Thank you in advance
And this is the debug I am getting in the controller:
object(App\Model\Entity\Category) {
'new' => false,
'accessible' => [
'name' => true,
'slug' => true,
'articles' => true
],
'properties' => [
'id' => (int) 2,
'name' => 'International',
'slug' => 'international.html'
],
'dirty' => [],
'original' => [],
'virtual' => [],
'errors' => [],
'repository' => 'Categories'
}
and here are my models:
class CategoriesTable extends Table
{
public function initialize(array $config)
{
$this->addBehavior('Timestamp');
$this->displayField('name');
$this->hasMany('Articles', [
'className' => 'Articles',
'foreignKey' => 'category_id',
'conditions' => [
'published' => 1
],
'dependent' => true
]);
}
}
class ArticlesTable extends Table
{
public function initialize(array $config)
{
$this->addBehavior('Timestamp');
$this->belongsTo('Users');
$this->belongsTo('Categories', [
'foreignKey' => 'category_id'
]);
}
}

Answer 1

the find() method will always return a Query object. You need to fetch at least one result before trying to get properties from it:
$thisIsAQuery = $this->Categories->findBySlug($slug)->contain(['Articles'])
// I can now fetch the category
$category = $thisIsAQuery->first();
// And now I can get the category name
echo $category->name