Fix WSOD on language prefixes

[jofranz]

Fix for #567

Previous behavior

Opening an existing template leads to a white screen of death

Current behavior

Template can be opened or edited without problems

Testing

Has been tested with a customer

Credits

#567 (comment) was suggested fix by @CsarRamos (would you like to test it?)

Ref

systopia reference: 23566

[demeritcowboy]

Part of the difficulty I think is trying to satisfy both multilingual and multisite urls. I know very little about multisite, but does CIVICRM_UF_BASEURL work with multisite? It looks like it might but the section this PR is editing is intended to only be hit by multisite, but because of the reasons I described at #567 (comment) every site hits this line. So my two cents is the multisite part needs to be worked out first, so that the right code can be targeted.

[kainuk]

I had just created a PR with the same intent, but a different method to find the base url

$currentURL = \Civi::paths()->getVariable('cms.root', 'url') . $templatePath;

[jofranz]

I had just created a PR with the same intent, but a different method to find the base url

$currentURL = \Civi::paths()->getVariable('cms.root', 'url') . $templatePath;

Oh cool. Where can I find it?

[jofranz]

Part of the difficulty I think is trying to satisfy both multilingual and multisite urls. I know very little about multisite, but does CIVICRM_UF_BASEURL work with multisite? It looks like it might but the section this PR is editing is intended to only be hit by multisite, but because of the reasons I described at #567 (comment) every site hits this line. So my two cents is the multisite part needs to be worked out first, so that the right code can be targeted.

I see. I hope I will find some customer time to look into this

[kainuk]

Hi @jofranz, my change is here https://github.com/kainuk/uk.co.vedaconsulting.mosaico/tree/issue-567 .

[Rar9]

works on d10.2 with last civicrm php 8.2

[adixon]

I don't have any insight on the multi-site issue, but appreciate this PR because it fixes a clients' multi-lingual install.