Magento event system is one of the most powerful and commonly used techniques for extending the standard back-end logic. What’s more, choosing the right event for a custom logic interpretation is an essential part of development.

Even though event systems in Magento 1 and Magento 2 share similarities, developers will find it useful to understand how the Magento 2 event system operates specifically. Read on to see a list of the framework-level events that help understand which event will be perfect to monitor and track in Magento 2.

This time, topic of our article is “Collections”, a great key to data manipulation in Magento. All of the developers are able to use and operate this powerful instrument. Isn’t it cool to be able to grab all needed data from the database tables with no SQL? We can find many articles and tutorials in the WEB explaining collection features, but the main goal of our article is a discussion of the situations when the collections become a serious trouble for a developer.