Re:
That's quite easy -
___
models.py:
class num(models.Model):
item = models.BigIntegerField(...)
___
views.py:
from . import models
def funct(request):
mdl = models.num.objects.get(id__exact=1)
mdl2 = models.num.objects.get(id__exact=1)
adds = int(mdl.item) + int(mdl2.item)
dict = {"adds_temp" : adds}
return render(request, "home.html", context=dict)
___
templates/home.html
Addition: {{adds_temp}}
On Tuesday, May 5, 2020, fahad rasool wrote:
> Can someone tell that how to perform an operation ,for example we retreive
> two numbers from database and want to add them and display on template in
> django
>
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> msgid/django-users/CACqgSmCzazz4W5AuwKOzgvyjSDAMb
> XwgD-B%3DkM%2BtG3T0t2Mb%3DQ%40mail.gmail.com
>
> .
>
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Re: Best hosting for Django Application?
please don't ever use "python-anywhere" for a serious project unless you have enough tears in your eye balls to cry out when the time comes. ... I suggest "digitalocean/linode" so that the heavy problems of "SSL certificates" won't beat you up -- 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-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/ee7b3e5b-20f8-4f70-aca2-3fc689a30a37%40googlegroups.com.
Re: A learner following a Mosh Tutorial on Django and having a problem saving a product to SQLite
That's great to hear! -- 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-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/56235ef4-df14-4857-9c73-53a48f27acfe%40googlegroups.com.
Re: A learner following a Mosh Tutorial on Django and having a problem saving a product to SQLite
delete the migrations again, then run this to reset the tracking: >>> py manage.py migrate --fake [app_Name] zero then redo the process I stated before. ... makemigrations [app_Name] ... migrate [app_Name] -- 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-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/06d0ec9b-9860-4a90-ba93-031217256161%40googlegroups.com.
Page 404 error after running Django server
Hi! you're just visiting a different url from what you specified in your
"urls.py" file.
look closely at the routes "django" is telling you that it tried:
[admin/, welcome.html/]
... these are truly the two paths that you specified, why on earth are you
trying to visit a non-existing path(http://127.0.0.1:8000/)
... kindly visit (http://127.0.0.1:8000/welcome.html)
and face your next error in the "views.py" file ('HttpRequest' instead of
'HttpResponse')
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Re: A learner following a Mosh Tutorial on Django and having a problem saving a product to SQLite
Hi! the reason is probably because you happened to have deleted "some but not all of your migrations" ... django will always look for the latest "sqlmigrate" with the versions in the right order(0001,0002,000x...) before it allows "makemigrations" add a new one. To fix, this you must: delete all your migration files located at "app_Name/migrations" then run >>> py manage.py makemigrations [app_Name] >>> py manage.py migrate [app_Name] ...you can skip app_Name if it's the only app in your project but I advise you add it anyway. after that you can run: >>> py manage.py sqlmigrate [app_Name]0001 if that shows your latest migrations, then it's done bro! your project should work now. also check out your migrations and see how django added the new one. where app_Name === your app name (the one that you added to 'installed_apps' of settings.py -- 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-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/8d1564bb-67c9-4215-8a2b-92afa3e0bcab%40googlegroups.com.
How to get previously uploaded Images in Django
You should read about customising the admin here: https://docs.djangoproject.com/en/3.0/intro/tutorial07/ ... but I suggest that you build your own website control panel which will control your website with API's -- 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-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/37568d09-e5a6-4ab4-be12-ed2881d6d119%40googlegroups.com.
Re: not a valid UUID.
[CONTINUED] I just saw "unique=true" on that field ... you may not face the problems of using "random" just yet but must face it at some "random time in the future" - once you see something like this: >>>: IntegrityError ... then shall you remember my reply. The best option is to use a well guided function - I could even help you with that if you don't know much about it on my leisure. -- 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-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/a55e8d2f-1511-4678-9c9a-1b40a93a8025%40googlegroups.com.
Re: not a valid UUID.
That looks good to you but is definitely a dangerous approach if the "12 digits" should be unique for each QuerySet since "random.random" can return dublicate numbers when called multiple times. ... I suggest you make a function for that or novicely adds the item's 'pk' to the random number making sure that it's still not more than 12 digits -- 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-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/71c45bae-8cb2-433d-ae27-2d4275c7182c%40googlegroups.com.
Re: not a valid UUID.
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 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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> https://groups.google.com/d/msgid/django-users/4a1d77cc-d1b8-4bd4-84cd-cd78e6d2eb76%40googlegroups.com.
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 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
