Re: not a valid UUID.

Thanks for your response I just found out u can't shorten UUID but I needed 12 digits

what I now did was to import  the code below

from random import randint
my_rand = randint(100000000000, 999999999999)
transaction_id = models.CharField(max_length=30, unique=True, null=True, blank=True, editable=False, default=my_rand)

Thanks
On Sunday, 3 May 2020 11:35:30 UTC+1, Nomeh Uchenna Gabriel wrote:

On Sunday, May 3, 2020 at 9:10:28 AM UTC+1, Benedict Uwazie wrote:
> Still facing the same issue
>
> On Sunday, 3 May 2020 03:27:46 UTC+1, Motaz Hejaze  wrote:
> default=cast_trans
> cast_trans = int(pass_trans)
>
> UUID is string not int
>
>
> On Sun, May 3, 2020 at 4:05 AM Benedict Uwazie <nonw...@gmail.com> wrote:
>
>
>
> On Sunday, 3 May 2020 01:38:16 UTC+1, Benedict Uwazie  wrote:
>
> I added a field called transaction_id in my models.py I want that field to be used to track every transaction on my "DuesLevy" model I imported uuid to this to happen, but each time I migrate I get this error.
> How do i prevent this error from occurring each time I migrate (python manage.py migrate) File "C:\Users\Benedict\Miniconda3\envs\django3\lib\site-packages\django\db\models\fields\__init__.py", line 2344, in to_python
> params={'value': value},
> django.core.exceptions.ValidationError: ["'13615773708697' is not a valid UUID."]
>
>
> my models.py
>
>
> trans_id = uuid.uuid4()
> trans_str = trans_id.int
> pass_trans = str(trans_str)[:12]
> cast_trans = int(pass_trans)
> class DuesLevy(models.Model):
>     class_of_dues = models.CharField(max_length=30, default=options.CHOOSE, choices=options.CLASS_OF_DUES, blank=True)
>     payment_circle = models.CharField(max_length=30, default=options.CHOOSE, choices=options.PAYMENT_CIRCLE)
>     payment_option = models.CharField(max_length=30, default=options.CHOOSE, choices=options.PAYMENT_OPTION)
>     amount = models.DecimalField(max_digits=8, decimal_places=2)
>     transaction_id = models.UUIDField(max_length=100, unique=True, null=True, blank=True, editable=False, default=cast_trans)
>     payment_channel = models.CharField(max_length=30, default=options.CHOOSE, choices=options.PAYMENT_CHANNEL_TYPE)
>     payment_date = models.DateField()
>     date_recorded = models.DateTimeField(auto_now_add=True)
>     user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
>     description = models.TextField(blank=True, null=True)
>
>     def __str__(self):
>         return self.amount
>     
>   
>     def get_absolute_url(self):
>         return reverse('backend:detail_dues', kwargs={'pk': self.id})
>
>
>
>
>
>
> --
>
> You received this message because you are subscribed to the Google Groups "Django users" group.
>
> To unsubscribe from this group and stop receiving emails from it, send an email to django...@googlegroups.com.
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On Sunday, May 3, 2020 at 9:10:28 AM UTC+1, Benedict Uwazie wrote:
> Still facing the same issue
>
> On Sunday, 3 May 2020 03:27:46 UTC+1, Motaz Hejaze  wrote:
> default=cast_trans
> cast_trans = int(pass_trans)
>
> UUID is string not int
>
>
> On Sun, May 3, 2020 at 4:05 AM Benedict Uwazie <nonw...@gmail.com> wrote:
>
>
>
> On Sunday, 3 May 2020 01:38:16 UTC+1, Benedict Uwazie  wrote:
>
> I added a field called transaction_id in my models.py I want that field to be used to track every transaction on my "DuesLevy" model I imported uuid to this to happen, but each time I migrate I get this error.
> How do i prevent this error from occurring each time I migrate (python manage.py migrate) File "C:\Users\Benedict\Miniconda3\envs\django3\lib\site-packages\django\db\models\fields\__init__.py", line 2344, in to_python
> params={'value': value},
> django.core.exceptions.ValidationError: ["'13615773708697' is not a valid UUID."]
>
>
> my models.py
>
>
> trans_id = uuid.uuid4()
> trans_str = trans_id.int
> pass_trans = str(trans_str)[:12]
> cast_trans = int(pass_trans)
> class DuesLevy(models.Model):
>     class_of_dues = models.CharField(max_length=30, default=options.CHOOSE, choices=options.CLASS_OF_DUES, blank=True)
>     payment_circle = models.CharField(max_length=30, default=options.CHOOSE, choices=options.PAYMENT_CIRCLE)
>     payment_option = models.CharField(max_length=30, default=options.CHOOSE, choices=options.PAYMENT_OPTION)
>     amount = models.DecimalField(max_digits=8, decimal_places=2)
>     transaction_id = models.UUIDField(max_length=100, unique=True, null=True, blank=True, editable=False, default=cast_trans)
>     payment_channel = models.CharField(max_length=30, default=options.CHOOSE, choices=options.PAYMENT_CHANNEL_TYPE)
>     payment_date = models.DateField()
>     date_recorded = models.DateTimeField(auto_now_add=True)
>     user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
>     description = models.TextField(blank=True, null=True)
>
>     def __str__(self):
>         return self.amount
>     
>   
>     def get_absolute_url(self):
>         return reverse('backend:detail_dues', kwargs={'pk': self.id})
>
>
>
>
>
>
> --
>
> You received this message because you are subscribed to the Google Groups "Django users" group.
>
> To unsubscribe from this group and stop receiving emails from it, send an email to django...@googlegroups.com.
>
> To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/4a1d77cc-d1b8-4bd4-84cd-cd78e6d2eb76%40googlegroups.com.

You're trying to shorten the UUID to 12 chars, that's not allowed

... simply change:

'pass_trans = str(trans_str[:12])'

to

pass_trans = str(trans_str)'

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