Smarty arrays in message template for Thank You letters

Question

I have Smarty enabled in settings file (on WordPress), and I am able to successfully use Smarty in Thank You letter template as long as I am using regular variables (non-arrays).

As soon as I try to create an array, I am unable to get it to work. Here are some things I have tried...

These simply display 1

<!--
{assign var="test" value=[111,222,333]}
-->
<p>{$test[2]}</p>

<!--
{assign var="test" value=[111,222,333]}
-->
<p>{$test.2}</p>

These create an error:

<!--
{assign var="test" value=['y'=>'yellow','b'=>'blue']} 
-->
<p>{$test[y]}</p>

<!--
{assign var="test" value=['y'=>'yellow','b'=>'blue']} 
-->
<p>{$test.y}</p>

EDIT: Just to add some more details on what I am doing... I am going to Find Contributions and then selecting All Records and then choosing Thank You Letters from the Actions drop down. I can successfully print a letter with ALL their contributions listed (each one individually), and I can successfully print a letter with a summary only Tax Deductible and/or Non Tax Deductible contributions. What I want to do is calculate a total for each Financial Type... I need to create an array in smarty in order add the total for each Financial Type seperately so I can then print a letter with a summary by Financial Type only. I am basing my solution on Iowa Boy answer from this thread: How to print USA tax receipt to individuals?

But regardless of my use case, I can not seem to get arrays in Smarty to work properly.

EDIT: So apparently Smarty v2 (currently the version used by CiviCRM) does NOT let you create or work with arrays.

Answer 1

If you don't care about line-items and are just using the financial type at the contribution level, you should be able to use grouping by financial type as described here, using table cell: https://docs.civicrm.org/user/en/latest/contributions/manual-receipts-and-thank-yous/#grouped-contribution-thank-you-letters

Otherwise I don't think you can do arrays in smarty and the functions that might allow working around it will give a security error. But you could make a custom token in php.

Answer 2

CiviCRM v5.48.1 is using Smarty v2.6, and based on Demerit response above, it appears that Smarty v2 does not support arrays.

I am not sure if Smarty v2 (in any form) never supported arrays, or if it is just the implementation in CiviCRM that does not support arrays.