1
You can use the category collection factory for getting the category.
public function __construct(
\Magento\Backend\Block\Template\Context $context,
\Magento\Catalog\Model\ResourceModel\Category\CollectionFactory $categoryCollectionFactory
) {
$this->_categoryCollectionFactory = $categoryCollectionFactory;
...
1
Magento strictly follows and recommends design patterns
Collection Repository
This implementation use to manipulate entity objects but not able to create new one.
$repo = $this->myRepository();
$object = $repo->getById($myId);
$object->setData('something', 'somethingDifferent');
$repo->save($object);
Collection Factory
This implementation use ...
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