This is part of the Semicolon&Sons Code Diary - consisting of lessons learned on the job. You're in the rails category.
Last Updated: 2024-12-03
When I was writing code to merge two different products
, I seemed to have issues
getting the query cache to notice the notes_files
in their new locations:
# Things tried
# 1.
Product.uncached do
...
end
# 2.
continued_product.subject.notes_files << retired_product.notes_files
# 3.
notes_files.each do |nf|
nf.subject = continued_product.subject
nf.save
end
I even tried updating rails, etc.
Turns out, I was silently having a validation error!
I would have noticed had I paid more attention to the logs where it said
"Rollback". (To get alerted via explosions instead of logs, I should have used
save!
or called .valid?
.)
Watch for rollback in your SQL log