Good to know. Thanks again!
On Monday, July 24, 2017 at 10:23:44 PM UTC-6, Alexander Joseph wrote:
>
> I'm new to django, but coming from php I think its the greatest thing ever.
>
> I have a model for Invoices ...
>
> {{{
> from django.conf import settings
> from django.db import models
> from django.core.urlresolvers import reverse
> #from django.contrib.auth.models import User
>
> # Create your models here.
> class Invoice(models.Model):
> created_at = models.DateTimeField(auto_now_add=True)
> their_company = models.CharField(max_length=255)
> invoice_number = models.CharField(max_length=50, default='')
> bill_to = models.CharField(max_length=255, default='')
> created_by = models.ForeignKey(settings.AUTH_USER_MODEL)
>
> class Meta:
> ordering = ['invoice_number', ]
>
> def __str__(self):
> return self.invoice_number
>
> def get_absolute_url(self):
> return reverse("accounting:invoices:detail", kwargs={"pk": self.pk
> })
> }}}
>
> right now the user has to put in the invoice number themselves. I want to
> not give the user that option though - I'd like to autofill that field in
> the database with a concatenation of the 2 digit year (17) plus 2 digit
> month (07) plus 2 digit day (24) and then a 2 digit auto increment for
> every invoice created on that specific date so the first invoice created
> today would be 17072401 and the second would be 17072402, etc. I'm guessing
> I need a field just for the date and another for the iteration of each
> invoice.
>
> Can anyone give me some direction on this? First I'm not sure how to
> autofill a field in the database without getting the input from the user,
> and I'm also not sure how I would do the concatenation with the right
> numbers. Thanks for your help
>
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