How to add calculate field to Product repository

[jirawat_pattanayutanachot]

I would like to add new field call discount that calculate from product's price - product's special price and make it able to filter by search criteria.

I think I should use Extension Attributes but I not sure how to implement it.

Can anyone help suggest?

[Damian Culotta]

Hi @jirawat_pattanayutanachot,

Isn't possible for you to use a custom attribute with a custom backend model to get the price difference?

[jirawat_pattanayutanachot · Accepted solution]

Hi @Damian Culotta,

I have done by collection already. it's working well for me. Thank you.