How to use a variable from one tpl in another without getting an undefined index error

[Henri]

Hey there;

 

I'm looking to take a variable called $quantity_discount that can be found in:

themename/templates/catalog/_partials/Product-discounts.tpl

And put it in:

themename/templates/catalog/product.tpl

 

However when doing it i get the following error:

ContextErrorException in smarty_internal_templatebase.php(157) : eval()'d code line 311:
Notice: Undefined index: quantity_discount

 

As you may have guessed I'm trying  to show special offers in the catalog page. But i'm also just curious how you are supposed to do this in general for other modifications.

 

Finally, where would be a good lace to learn about this properly? I haven't been able to find any good documentation that is not fragmented or assumes a much higher level of understanding of how this works than i currently have. 

[phinq1910]

You need assign variable on controller before use it on template

[Henri]

1 hour ago, phinq1910 said:

You need assign variable on controller before use it on template

 

Which controller would that be? 

[Henri]

Bump, i'm still stuck with this issue. Any help would be appreciated. 

[Henri]

I've been scouring these forums the whole afternoon, and i stumbled on another thread which i think asked for the same thing but i honestly am not sure what the solution ended up being....

https://www.prestashop.com/forums/topic/570319-how-to-display-discounted-price-on-home-page/#elUserLink_menu

[Henri]

Well basically this

https://mypresta.eu/modules/front-office-features/quantity-discounts-on-products-lists.html

But without overpaying for something this silly...

[Henri]

Here is the unfortunate answer to my trouble i believe

http://forge.prestashop.com/browse/BOOM-4004

$product.quantity_discounts is showing up empty on the listings page for some reasons.