Honest rating

Honest rating

This add-on is an add-on for reviews in cs-cart. Its main features are:

• Adds a rating to products (not displayed in the product card) and sorting by rating
• Adds the ability to enable or disable the display of ratings for goods in the block.
• Displays more detailed grade information.

Adds a rating to products and the ability to sort by rating

Why add products ratings? Consider the situation when we have two products with a large difference in the number of ratings.

Item 1:

10x 5-star reviews

3x 4-star reviews

and 1x 2-star reviews

standardly in cs-cart only the arithmetic mean is considered:

 (10 * 5 + 3 * 4 + 2 * 1) / (10 + 3 + 1) = (50 + 12 + 2) / 14 = 64/14 = 4.57

and take Item 2:

3x 5-star reviews

1x 4-star reviews

for him the arithmetic mean:

 (3 * 5 + 1 * 4) / (3 + 1) = (15 + 4) / 4 = 19/4 = 4.75

The difference is significant enough, and we see that the arithmetic means is not the best tool for ranking goods. Our module calculates the rating value based on mathematical statistics. Based on the decision of mathematician Edwin Wilson, the module calculates with a given probability, according to those estimates, the “real” rating. Which allows you to sort the goods more honestly.

In the module settings, you can set the probability threshold and rating scale (by default, a 5-point rating system is used as in CS-Cart)

You can specify an additional coefficient affecting the rating to artificially change the sorting, but this will require knowledge of SQL. For example, you want to display all products with a specific characteristic that were always in the list before others. In the module settings you will need to set something like the following:

(select

round (

count (cscart_ product_features_values.product_id) / (1 + count (cscart_ product_features_values.product_id)))

fromcscart_ product_features_values

where

cscart_ product_features_values.product_id = products.product_id AND

cscart_ product_features_values.feature_id = _id_necessary_characteristics_ AND

cscart_ product_features_values.feature_id = _id_ of the required_characteristic_ option_

)*5

thus, if the desired characteristic is present, 5 points will be added to the rating

Adds the ability to enable / disable the display of the rating of the product in the block.

Let’s suppose, you do not want to display reviews of the block with new products, because new products do not yet have reviews. For this block in the settings, you can disable the display of information about reviews.

Displays more detailed grade information.

Now, looking at the goods, the client sees not only their average score but also the number of ratings, their total amount and extended information about how many and what ratings the product has.