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WalkthroughSwitches ExpenseGroupSettings signal handling from pre_save to post_save in apps/fyle/signals.py, renaming the receiver accordingly, updating the decorator, adjusting the docstring, and removing the unused pre_save import. Changes
Sequence Diagram(s)sequenceDiagram
autonumber
actor User
participant Model as ExpenseGroupSettings (Model)
participant ORM as Django ORM
participant Signal as post_save Receiver
User->>Model: set fields
User->>ORM: Model.save()
ORM->>Model: write to DB
Note right of ORM: Save committed
ORM-->>Signal: emit post_save(instance)
Signal->>Signal: run_post_save_expense_group_setting_triggers(instance)
Signal-->>User: processing complete
Estimated code review effort🎯 2 (Simple) | ⏱️ ~10 minutes Poem
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Actionable comments posted: 1
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⚠️ Outside diff range comments (1)
apps/fyle/signals.py (1)
40-54: Critical: state-change detection broken with post_save signal
- With
post_save,existing_expense_group_settingreflects the newly saved values, soexisting_expense_group_setting.expense_state != instance.expense_stateis always false and async tasks never run.- Revert to
pre_saveonExpenseGroupSettingsto compare old (DB) vs new (instance) values for proper change detection.
🧹 Nitpick comments (1)
apps/fyle/signals.py (1)
36-36: Static analysis: Unused signal parameters.The static analysis tool flags
senderandkwargsas unused. For Django signals:
senderis typically unused but part of the signal protocol. If desired, prefix with underscore:_senderkwargscontains important signal metadata likecreated,update_fields,raw, andusing. Withpost_save, you should examinekwargs.get('created')to distinguish creates from updates.Given the critical issue identified in the previous comment, properly using
kwargsbecomes important if you keep thepost_savesignal.
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apps/fyle/signals.py(2 hunks)
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🧬 Code graph analysis (1)
apps/fyle/signals.py (1)
apps/fyle/models.py (1)
ExpenseGroupSettings(236-348)
🪛 Ruff (0.14.0)
apps/fyle/signals.py
36-36: Unused function argument: sender
(ARG001)
36-36: Unused function argument: kwargs
(ARG001)
⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (1)
- GitHub Check: pytest
| import logging | ||
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| from django.db.models.signals import post_save, pre_save | ||
| from django.db.models.signals import post_save |
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Critical: Signal change breaks state-change detection logic.
The switch from pre_save to post_save fundamentally breaks the change-detection mechanism in this signal handler. See the detailed explanation in the review comment on lines 40-54.
Also applies to: 35-35
🤖 Prompt for AI Agents
In apps/fyle/signals.py around lines 3 and also affecting line 35, the signal
import was changed from pre_save to post_save which breaks existing state-change
detection; revert the import to django.db.models.signals.pre_save (and
corresponding decorator/connection) so the handler runs before the DB write, and
restore the original pre-save comparison logic that compares the incoming
instance to the existing DB state (or use a DB fetch inside the pre_save handler
if snapshotting was removed); apply the same revert at line 35 to ensure all
handlers relying on pre-save change detection run before persistence.
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