Currently Drush Cr or Cache Clear UI does not flush Redis cache

As per #26 comment, "if (!$redisDatabaseIndex" won't work, as it's ignoring "0", change it to "!isset($redisDatabaseIndex)" instead.

Carlos Romero → made their first commit to this issue’s fork.

Hello, I have made a fork and uploaded a commit with the code from DamienMcKenna comment #16 🐛 Currently Drush Cr or Cache Clear UI does not flush Redis cache Fixed , I have modified the first condition, replacing !$redisDatabaseIndex with "!isset($redisDatabaseIndex)" as kenorb commented #33 🐛 Currently Drush Cr or Cache Clear UI does not flush Redis cache Fixed .

For me, in a drupal 9 with the latest version of dockerhub of redis, clearing caches works using
$settings['redis.connection']['base'] = 0;
and
$settings['cache_prefix'] = 'mysite_';

Tested running DBSIZE on redis-cli after and before do drush cr on drupal terminal.

I have made the merge request.

Thanks.

Just tested with #16 patch and MR #21.
With 16 the Redis cache is not flushed. While with the MR it works correctly.