Serhii Andriienko – Magento 2

Get Product Collection in Magento 2

Use ResourceModel\Product\CollectionFactory if you need a collection by product.

Get Category Collection in Magento 2

Use the ResourceModel\Category\CollectionFactory if you need a collection by category. Example:

Get Category by Repository Interface

Get category item by ID. Use CategoryRepositoryInterface and NoSuchEntityException.

Sql query in magento – Resource Connection

If you need run sql query without repository or collection use ResourceConnection in your module.

Catalog Category Tree – problem with loading tree nodes in Magento 2

If your store has a lot of categories and trees, you may have trouble loading the categories page. Magento 2 has three tier loading by default.

Connection to Redis redis:6379 failed after 2 failures.Last Magento 2

Redis is installed in docker and after deployment I see a new error. I connected to the Redis container and Redis status is OK. Full error:

Emoji is not saved in mysql (???????) in Magento 2

(MySQL) UTF-8 does not support all emoji. You need to change DB columns to “utf8mb4”.

Repository testing in Magento 2

Repository is simple! Create file repository.php in folder /pub.

Model testing in Magento 2

Sometimes you need to quickly test the Model of your module or another vendor. And in order not to create a complete module, we can do it on one file.