MySQL triggers cause deadlocks in Laravel when updating related records with eager loading
I need help solving I'm prototyping a solution and I'm working with a deadlock scenario in my Laravel 9 application when trying to update multiple related records using MySQL triggers. I have set up a trigger to update a timestamp on a related table when an entry in the primary table is modified. The structure looks something like this: ```sql CREATE TRIGGER update_timestamp AFTER UPDATE ON primary_table FOR EACH ROW BEGIN UPDATE related_table SET updated_at = NOW() WHERE primary_id = NEW.id; END; ``` In my Laravel code, I'm using Eloquent's eager loading to update the primary and related records in a single operation: ```php $primary = PrimaryModel::with('related')->find($id); $primary->name = 'Updated Name'; $primary->related->each(function ($related) { $related->status = 'active'; }); $primary->save(); ``` I started noticing deadlock errors like `SQLSTATE[40001]: Serialization failure: 1213 Deadlock found when trying to get lock; try restarting transaction` when two users try to update records simultaneously. I've tried wrapping the update operation in a transaction and even using `DB::transaction()` to manage database transactions, but the scenario continues. I've also checked the MySQL settings for deadlock detection and timeout, but they seem to be default values. Is there a better way to handle updates in this scenario to avoid deadlocks, or should I reconsider using triggers for this use case? Any advice on how to diagnose and resolve this would be greatly appreciated! For context: I'm using Php on Linux. How would you solve this? My development environment is macOS. My development environment is Ubuntu 22.04. Is there a simpler solution I'm overlooking?