[ci skip] docs: add around_update callback example
Created by: MiguelArgentina
Motivation / Background
This Pull Request has been created because there's no example for around_
callbacks, so I think it's useful for newcomers like me
Detail
This Pull Request changes 2 files, adding an example for an around_update
callback:
activerecord/lib/active_record/callbacks.rb
guides/source/active_record_callbacks.md
Additional information
Checklist
Before submitting the PR make sure the following are checked:
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This Pull Request is related to one change. Changes that are unrelated should be opened in separate PRs. -
Commit message has a detailed description of what changed and why. If this PR fixes a related issue include it in the commit message. Ex: [Fix #issue-number]
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Tests are added or updated if you fix a bug or add a feature. -
CHANGELOG files are updated for the changed libraries if there is a behavior change or additional feature. Minor bug fixes and documentation changes should not be included.