Sort available transporters based on cart products

[unemouette]

Hello

 

I am quite new to prestashop, but got experience in web development.

 

I need to implement a simple functionnality to my prestashop (1.6.1.0):

 

Based on the cart content (product references) I need to sort carriers that will be available for the user on the 4th "shipping" page/tab.

 

 

As an example: I have 3 carriers, but one of theme has to be removed only if one of the cart's product reference starts with a 1 (it means it's fresh food and can't be shipped via this carrier).

 

I already wrote a new method Cart::allProductsDry() in the override/classes directory, checks the products references, and returns true if there is no fresh product in my cart.

 

Now I need to change the carrier selection part.

 

I'd like to know how you would do it ?

 

 

Thank you very much for your help !!

Edited September 19, 2016 by unemouette (see edit history)