Questions tagged [django-model-field]
112 questions
1
vote
2 answers
Django - model that has a count per CHOICES Field
django 2.1, python 3.6
Let's say I have a set of things ['house_1','house_2',...] and I want to have a model that keeps a count of each item. I'd imagine that it'd look like the following.
class Card(models.Model):
house_1_count =…
Micah Pearce
- 1,805
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1
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1 answer
CharField not saving
I'm a relative django newbie, but I haven't been able to find that this is somewhere else. I setup django in accordance with the djangogirls tutorial and created a model that looks something like this:
class Grimmage(models.Model):
gStart =…
toby.in.dresden
- 117
- 2
- 11
1
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0 answers
Using callable as path attribute of Django's FilePathField?
I have the following model that includes a file upload by a user.
def resume_path(instance, filename):
# file will be uploaded to MEDIA_ROOT/user_/resume/
return 'user_{0}/resume/{1}'.format(instance.student_user.id,…
cmanbst
- 179
- 3
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1
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0 answers
django form "exclude" works, "fields" doesn't
This question almost seems like too much of a hassle to ask, so if I don't provide enough details, I'm sorry. I'm using a bunch of different things in this project so to provide details on all of it would take me half the day. If there's something…
mastachimp
- 438
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- 14
0
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1 answer
Changing Year, Month, or Day in a Django model's date field using annotate
I have a Django model MyModel
class MyModel(models.Model):
"""My Model that stores date."""
date = models.DateField()
In my API I am receiving a param, review_month
I need to get all the entries in MyModel and replace their date's year…
Noyan Aziz
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0
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0 answers
django model Field for content that could be either a video or an image
I would like to define a django model Field that could be either an image or a video.
I Thought about using the image field and modifying the validator to accept also video files.
but what should I do with width and height attributes in case the…
piscvau
- 33
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0
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2 answers
I am getting this error django.core.exceptions.FieldError: Unsupported lookup 'icontains' for ForeignKey or join on the field not permitted
I am getting this error django.core.exceptions.FieldError: Unsupported lookup 'icontains' for ForeignKey or join on the field not permitted
Below is models.py:
class Author(models.Model):
first_name = models.CharField(max_length=100)
…
Deep joshi
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0
votes
0 answers
How to change Django model field from Integer to Decimal field for Postgres DB?
I'm trying to change the data type of a Django model field from PositiveBigIntegerField() into DecimalField().
From:
quantity=models.PositiveBigIntegerField()
To:
quantity=models.DecimalField(max_digits=8, decimal_places=2)
But when I migrate the…
DEV
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- 9
0
votes
0 answers
can you add hidden field to django orm object?
I am fairly new to django so bear with me.
but is it possible to implement something similiar to laravel's hidden array:
$hidden = ['password', ]
in django?
I intend to use it in the same manner as the laravel code, to hide the password field from…
Nicolas Al Ahmar
- 5
- 2
0
votes
2 answers
how to customize django model message for email
I created User model in Django as:
email = models.EmailField(
verbose_name="Email Address", unique=True, null=True, blank=True)
When I try to register user with same email it show message user with this Email Address already exist, how can…
Ayaz Khan
- 104
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0
votes
0 answers
auth_user table created alongside accounts_user table in postgres(Django)
Using:
class User(AbstractBaseUser):
pass #models here
I added extra fields to my custom user model. This table is created successfully in postgres with absolutely no issues, however, whilst creating a superuser the credentials gets pushed to…
st. Evan
- 1
- 1
0
votes
1 answer
using django models to map one to many and many to one
I started using django today and am having trouble creating models based off the response of an API call. We can have a Course that gives a list of professors. Though, Professors can also teach multiple courses. I'm not sure how to create a list for…
0
votes
1 answer
How should queryset be set for related fields
I have two models named book and chapter. each book can have many chapters, so models are like:
class Book(models.Model):
title = models.CharField(max_length=100)
class Chapter(models.Model):
title = models.CharField(max_length=100)
…
famdude
- 79
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0
votes
1 answer
how can I display or return a instance of a django model by using another instance(which is primary key)
views.py I have Wallet class. with fields user and Walletname. When a new user is registered, a new Wallet object is created by signal. What I would like to do is display Walletname of the current logged in user.
I tried filtering but I got error…
Deger Gökalp
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0
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0 answers
Django Sites Framework __str__ representation
I'm experimenting with the Django Site framework. In an UpdateView form, the Site model _str_ representation is self.domain, but I want to use self.name. For example, instead of 'www.test.com', I'd like 'Test, Inc.' to appear.
I guess I could…
user10248665
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