How to shorten category short description?

[Flash951]

Prestashop 1.6.1.5
Is it possible to shorten the category short description text?
The visible text for category short description seems truncated to 350 characters,

In the product.tpl file I can replace 350 with 150, but that only affects when to display the "more" button and doesn't shorten the text.
{if Tools::strlen($category->description) > 150}

On the next line I tried this:
<div id="category_description_short" class="rte">{$description_short|truncate:150}</div>
But this change made the "more" button show no text at all.

Grateful for help. 

[NemoPS]

What if you leave the limit higher and still manually truncate it? Or you can remove that part completely and just have it show
Default template? Can you share your site's url if not?

[Flash951]

If I manually truncate it, the "more" button will not display anything. I need a lot of stuff there, but only two lines or so in the short_description initially. That's the whole point and why I want to shorten the "short description.

I can not "remove that part" and let it show all the text, because the product list will be to far down, to hidden when customer visits the category.

Here is link: https://www.kunnskap.no/butikk/64-jeg-kan-regne-1-4

Appreciate all help.

 

[NemoPS]

The truncate is not accurate because of html, but for the rest is seems to be working properly for me, so maybe I didn't get what you need

[Flash951]

If I truncate, "more"  button is not working, only blank page after selecting more.

[cryptix]

In category.tpl (Prestashop 1.6.1.24) you can try to add style="height:20.5em;overflow:hidden;", you can modify the length of the text by line.

<div id="category_description_short" class="rte" style="height:20.5em;overflow:hidden;">{$category->description}</div>

 

[JBW]

Maybe my module "Expandable descriptions" can help you. It can shorten/expand category descriptons as well as many others such as product descriptions:

https://addons.prestashop.com/de/product.php?id_product=49795