It's well known that there are Lazy Loading approach and Eager Loading approach in the relational query. But it's very important to know how the Eager Loading approach works in Yii 2, since it has changed drastically from that of Yii 1.1 and there are common misunderstandings about it in the community.
In this tutorial i will explain how to use jui auto complete in yii2.
The Autocomplete widget enables users to quickly find and select from a pre-populated list of values as they type, leveraging searching and filtering.
One of the common tasks the web application might be required to perform, especially the app using some kind of a CMS, is to save the history of data changes. Your client for sure will want the answer to this simple question - If I mess this up or delete by accident can we bring it back? Well, DB backup is one thing and quick recovery is another - let's talk about latter one.