Y26-195 - Remove redundant UG200 batch descriptors

[BenTopping]

Closes #5857

Changes proposed in this pull request

• Remove redundant UG200 descriptors

TODO

• Move script to single_use directory instead of migration.✅
• Confirm what to do with existing production data ✅
  • It doesn't look like UG200 is used yet at time of writing so no existing descriptors in lab events.
• Confirm useq_wafer messaging still works with missing descriptors. ✅
  • Tested both with existing descriptors and without.

[codecov]

Codecov Report

❌ Patch coverage is 30.00000% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 84.83%. Comparing base (9387bea) to head (d5d416b).

Files with missing lines	Patch %	Lines
...se/2026_07_remove_ug200_redundant_descriptors.rake	30.00%	7 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #5930      +/-   ##
===========================================
- Coverage    84.86%   84.83%   -0.04%     
===========================================
  Files         1495     1496       +1     
  Lines        33982    33992      +10     
  Branches      3621     3622       +1     
===========================================
- Hits         28840    28836       -4     
- Misses        4289     4308      +19     
+ Partials       853      848       -5     

Flag	Coverage Δ
javascript	76.31% <ø> (ø)
ruby	84.69% <30.00%> (-0.07%)	⬇️

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[yoldas]

I think we need to remove the record loader entries as well.

ls -1 config/default_records/{descriptors,tasks}/*ultima_ug200*
config/default_records/descriptors/005_ultima_ug200_descriptors.yml
config/default_records/tasks/005_ultima_ug200_tasks.yml

[BenTopping]

I think we need to remove the record loader entries as well.

ls -1 config/default_records/{descriptors,tasks}/*ultima_ug200*
config/default_records/descriptors/005_ultima_ug200_descriptors.yml
config/default_records/tasks/005_ultima_ug200_tasks.yml

Yes you are right. I had forgotten to commit the changes as was toggling them on/off while testing the rake task 🤦‍♂️
Added in d5d416b

[yoldas]

Looks good.

• LabEvents part may be necessary for UAT cleanup.
• Thanks for applying the single_use pattern for rake tasks here as well.

[sabrine33]

This is great! thank you for applying the single use pattern.
The changes looks okay to me, just one question, did you check if any data is been registered against the to-be-deleted descriptor in prod?

[BenTopping]

Yep good question, there are currently no UG200 batches at the time of writing.
If there were, it shouldn't be affected by the removal of these descriptor records as they are not directly linked. LabEvents (where descriptors are stored) create and store the values as hash with the name of the descriptor as the key and the field value as the value, they don't foreign key link to the records - (https://github.com/sanger/sequencescape/blob/develop/lib/acts_as_descriptable.rb#L37)