Problem/Motivation

After updating the Flag module to 8.x-4.0-beta6, this module is not integrating with well with views. Pages displaying views with an indexed Search API flag field are throwing a fatal error:

Symfony\Component\Routing\Exception\InvalidParameterException: Parameter "view_mode" for route "flag.action_link_unflag" must match "[^/]++" ("" given) to generate a corresponding URL. in Drupal\Core\Routing\UrlGenerator->doGenerate() (line 209 of core/lib/Drupal/Core/Routing/UrlGenerator.php).

Could this be due to the change https://www.drupal.org/node/3458551?

Issue fork flag_search_api-3507901

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jonraedeke created an issue. See original summary.

joco_sp made their first commit to this issue’s fork.

joco_sp opened merge request !10

joco_sp’s picture

joco_sp commented
Priority: Normal » Critical
Status: Active » Needs review

Escalating to Critical, because it breaks the website.

jonraedeke’s picture

jonraedeke commented
Status: Needs review » Reviewed & tested by the community

Thank you for the quick fix Aljoša! It works well and diff looks good. RTBC

hatsch’s picture

hatsch commented

confirm that this fixes problems with Flag 8.x-4.0-beta6. RTBC

bsingh’s picture

bsingh commented

Thanks @joco_sp

liquidcms’s picture

liquidcms commented

I have this error without Flag Search API, so wonder if the fix should be here or in the Flag module?

liquidcms’s picture

liquidcms commented

Nope, my bad. i have custom code (likely like this module does) that calls Flag link building service.. which they changed API for in beta6. "view mode" is no longer option parameter to pass. Still likely a bug in Flag as it has $view_mode = NULL in call to LinkBuilder method and it should likely be $view_mode = 'default'.