#35499: Issue with auto_now=True DateTimefield and update_fields
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Reporter: Mohamed | Owner: nobody
El-Kalioby |
Type: Bug | Status: new
Component: Database | Version: 4.2
layer (models, ORM) |
Severity: Normal | Keywords:
Triage Stage: | Has patch: 0
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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Let's assume we have the following model
{{{
class Order(models.Model):
name = models.Charfield(max_length=25)
status = models.CharField(max_length=50, default="Received")
order_date = models.DateTimeField(auto_now_add=True)
last_update = models.DateTimeField(auto_now=True)
}}}
Now in one of the views, we want to update the status to "Ready for
Shipping" so we write the following
{{{
order.status = "Ready to Shipping"
order.save(update_fields=['status'])
}}}
The issue now is that the '**last_update**' field won't be updated in the
database as it was NOT included in the `update_fields`. Which I think is
dangerous as now the developer has to add the field manually, and even
there is no warning or exception that he/she didn't add last_update field
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Ticket URL: <https://code.djangoproject.com/ticket/35499>
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