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пятница, 4 июля 2014 г., 12:01:15 UTC+3 пользователь William Granli написал:
>
> I am trying to create a queryset for getting the values of a DateTimeField 
> which is DATETIME in the DB.
>
> The class in models.py:
>
> class ChangeMetrics(models.Model):
>     id = models.IntegerField(primary_key=True)
>     file_id = models.ForeignKey(File, db_column = 'file_id')
>     version_id = models.ForeignKey(Version, db_column = 'version_id')
>     function_id = models.ForeignKey(Function, blank=True, db_column = 
> 'function_id')
>     date = models.DateTimeField(blank=True, null=True)
>     user = models.TextField(blank=True)
>     changed = models.IntegerField(blank=True, null=True)
>
> The field in the SQL DB:
>
> date DATETIME
>
> The tuples are populated in the database and running SQL queries directly 
> on the DB is working perfectly.
>
> This is the queryset I am currently using in Django:
>
> queryset = ChangeMetrics.objects.filter(~Q(changed=None), ~Q(date=None), 
> ~Q(version_id=None))
>
> I have tried a raw query and also a version of the query that uses 
> exclude(), but that still returns None for date.
>
> I am accessing the entries in the queryset through a for loop and simply 
> accessing date through entry.date inside the for loop.
>
> I am using Django version 1.6.5. I have also tried getting the values 
> through the Django shell, to no success.
>
> Any ideas on what could be wrong? I have tried a multitude of queries, 
> none of them change the returned value of date. I have tried resyncing the 
> DB. I've looked over the models and everything seems to be correct. 
> Everything except the date works fine.
>

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