Fixed a bug that prevented the display of multiple empty playlists

[Jared234]

What is it?

• Bugfix (user facing)
• Feature (user facing)
• Codebase improvement (dev facing)
• Meta improvement to the project (dev facing)

Description of the changes in your PR

• The issue was fixed by changing the faulty query getPlaylistMetadata:
  If a playlist has no streams, there won’t be any rows in the PLAYLIST_STREAM_JOIN_TABLE table that have a foreign key to that playlist. Thus, the JOIN_PLAYLIST_ID will not have a corresponding value in any rows of the join table. So, if you group by the JOIN_PLAYLIST_ID, only playlists that contain videos are grouped and displayed.

Fixes the following issue(s)

• Fixes Empty playlist are not showed in playlist bookmarks when are more than one empty #8582

APK testing

The APK can be found by going to the "Checks" tab below the title. On the left pane, click on "CI", scroll down to "artifacts" and click "app" to download the zip file which contains the debug APK of this PR.

Due diligence

• I read the contribution guidelines.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[Stypox]

Thank you! I can confirm it works :-)