Why summary in gridview is not true?

Question

Yii

Hi friends!
There is a model, displayed through gridview, and in the header of the summary according to the data, there is such data:

But in fact, there are only 28 rows in the table in the database.
Where do these numbers come from in the summary? And sobsno the most interesting - how to fix it?

Answer 1

I know that you have a one-to-many relationship, and it is specified in joinWith() instead of with(), so it counts incorrectly

Answer 2

Probably because of the groupBy in the query.