#29424: Datetime objects parsed as strings when signals used - Django 1.9.5
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Reporter: Adrian Castellanos | Owner: nobody
Type: Bug | Status: new
Component: Uncategorized | Version:
Severity: Normal | Resolution:
Keywords: signals model | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Description changed by Adrian Castellanos:
Old description:
> I found a strange behavior when accesing objects models using signals.
> The model is declared as:
>
> {{{
> class Campaign(models.Model):
> start_stay_date = models.DateTimeField(null=True, blank=True)
> end_stay_date = models.DateTimeField(null=True, blank=True)
> }}}
>
> When I use signals to connect the changes of the model with a function, a
> found that the instance that is passed as argument has strings instead of
> datetime in the dates:
>
> The code of the conection between the model and the function is:
>
> {{{
> def export_campaign_to_mongo(sender, instance, *args, **kwargs):
> check_dates()
> post_save.connect(export_campaign_to_mongo, Campaign)
> }}}
>
> This is the output of the console checking the types of the objects:
>
> {{{
> >>>type(instance)
> <class 'campaigns.models.Campaign'>
> >>>instance.start_date
> '2018-04-11T00:00:00'
> >>>from campaigns.models import Campaign
> >>>Campaign.objects.first().start_date
> datetime.datetime(2016, 10, 10, 0, 0)
> }}}
>
> I am using Django v1.9.5.
New description:
I found a strange behavior when accesing objects models using signals. The
model is declared as:
{{{
class Campaign(models.Model):
start_date = models.DateTimeField(null=True, blank=True)
end_date = models.DateTimeField(null=True, blank=True)
}}}
When I use signals to connect the changes of the model with a function, a
found that the instance that is passed as argument has strings instead of
datetime in the dates:
The code of the conection between the model and the function is:
{{{
def export_campaign_to_mongo(sender, instance, *args, **kwargs):
check_dates()
post_save.connect(export_campaign_to_mongo, Campaign)
}}}
This is the output of the console checking the types of the objects:
{{{
>>>type(instance)
<class 'campaigns.models.Campaign'>
>>>instance.start_date
'2018-04-11T00:00:00'
>>>from campaigns.models import Campaign
>>>Campaign.objects.first().start_date
datetime.datetime(2016, 10, 10, 0, 0)
}}}
I am using Django v1.9.5.
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Ticket URL: <https://code.djangoproject.com/ticket/29424#comment:1>
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