When we need to use product and current_product from Registry?

Question

In Magento2, if we want the current category detail then we can retrieve it from Registry as below:

$currentCategory = $this->_registry->registry('current_category');

For Getting current product detail, then we can retrieve it from Registry as below:

$currentProduct = $this->_registry->registry('product');

OR

$currentProduct = $this->_registry->registry('current_product');

So which one we should use or which one that Magento recommends for getting Current Product? why?

Thanks...

Answer 1

Take a look:

\Magento\Catalog\Helper\Product::initProduct()

    // Register current data and dispatch final events
    $this->_coreRegistry->register('current_product', $product);
    $this->_coreRegistry->register('product', $product);

As we can see, Magento registers two variables. That why we can get by current_product and product variables. Seem that Magento wants to give us "more ways" to get the current product data in block, event,... via Registry.

See more:

\Magento\Catalog\Controller\Adminhtml\Category\Widget\CategoriesJson::execute()

    $this->_coreRegistry->register('category', $category);
    $this->_coreRegistry->register('current_category', $category);