wip: remove n+1 query from user#tagnames method

[Tlazypanda]

Fixes #8189

Removed n+1 query problem from user#tagnames method

• PR is descriptively titled 📑 and links the original issue above 🔗
• tests pass -- look for a green checkbox ✔️ a few minutes after opening your PR -- or run tests locally with rake test
• code is in uniquely-named feature branch and has no merge conflicts 📁
• screenshots/GIFs are attached 📎 in case of UI updation
• ask @publiclab/reviewers for help, in a comment below

Thanks!

[codecov]

Codecov Report

Merging #8190 into main will decrease coverage by 0.29%.
The diff coverage is 64.95%.

@@            Coverage Diff             @@
##             main    #8190      +/-   ##
==========================================
- Coverage   82.10%   81.81%   -0.30%     
==========================================
  Files         100      100              
  Lines        5751     5846      +95     
==========================================
+ Hits         4722     4783      +61     
- Misses       1029     1063      +34     

Impacted Files	Coverage Δ
app/controllers/wiki_controller.rb	85.00% <ø> (ø)
app/controllers/spam2_controller.rb	75.59% <56.38%> (-24.41%)	⬇️
app/controllers/admin_controller.rb	80.24% <100.00%> (+0.24%)	⬆️
app/controllers/subscription_controller.rb	70.70% <100.00%> (+0.29%)	⬆️
app/models/comment.rb	77.51% <100.00%> (+0.62%)	⬆️
app/models/node.rb	91.18% <100.00%> (+0.12%)	⬆️
app/models/tag.rb	97.50% <100.00%> (ø)
app/models/user.rb	87.68% <100.00%> (ø)
app/api/srch/search.rb	70.06% <0.00%> (+3.82%)	⬆️
app/services/execute_search.rb	94.44% <0.00%> (+5.55%)	⬆️

[sagarpreet-chadha]

Can you paste the SQL queries executed from the server console in both cases? Maybe that will help to figure out?

[gitpod-io]

[Tlazypanda]

@sagarpreet-chadha Yeah surely I will look into it 😅 Thanks for the review 🎉

[jywarren]

Awesome!