How to display only the latest posts in gridView in Yii2?

Question

Yii

How can I make the GridView only show 1 record (if there is a repeat) and only the last record

Answer 1

gridView is not involved in setting the task here, it's just a display tool.
You need to compose the query required by the condition, wrap it in a DataProvider (Active, Array etc) and then pass it to the gridView widget.
That is, drawing up an ActiveRecord query is primary here. Without understanding the structure of your data, no one will help here.