This tutorial explains how to create an SQL query to show an average rating count submitted to the posts published by the queried user and output that count.
How to Sort Items According to the Rating
From this tutorial, you will learn how to place the data about the average rating of an item to the special meta field and afterward use that field to sort the items using JetSmartFilters functionality.
How to Display the Average Rating and Reviews Count
From this tutorial, you will learn how to display the average rating both on Single pages and in Listing Grids using the JetReviews plugin’s dynamic tag.