model.py
class Category(models.Model):
name = models.CharField(max_length =255, unique = True)
slug = models.SlugField(max_length= 255, unique = True)
description = models.TextField()
is_published = models.BooleanField(default=True)
def __unicode__(self):
return "%s" %self.name
I have model like above, so on admin page I want field description has tool ckeditor , but I don't know how to use it, so anybody can help me?
You need to install plugin like this https://github.com/django-ckeditor/django-ckeditor. Follow the installation instructions on github
Then in your models.py add:
from ckeditor.fields import RichTextField
and change this line:
description = models.TextField()
to this:
description = RichTextField()
Finally migrate you app
Related
In My Django Project, there are two apps: Login and Company
The error that am receiving in this is
AttributeError: module 'login.models' has no attribute 'Country'
Company App > models.py
from django.db import models
from login import models as LM
class CompanyProfile(models.Model):
full_name = models.CharField(max_length=255,
unique = True)
country = models.ForeignKey(LM.Country,
on_delete=models.SET_NULL,
null=True,
blank=False)
state = models.ForeignKey(LM.State,
on_delete=models.SET_NULL,
null=True,
blank=False)
def __str__(self):
return self.full_name
Login App > models.py
class Country(models.Model):
"""List of Country"""
name = models.CharField(max_length=50, unique= True, default='None')
code = models.CharField(max_length=2, unique= True, primary_key=True, default ='NA')
def __str__(self):
return str(self.code)
class State(models.Model):
"""List fo State"""
region = models.CharField(max_length = 255, unique = True, primary_key=True, default='None')
country = models.ForeignKey(Country, on_delete=models.SET_NULL, null=True, blank=False, default ='NA')
def __str__(self):
return self.region
Here is test to check that weather is login is getting imported or not
def test_import():
try:
# import pdb; pdb.set_trace()
importlib.find_loader('LM.Country')
found = True
except ImportError:
found = False
print(found)
Answer is received stands to be True
python3 manage.py shell
>>> test_import()
True
Now on other stackoverflow blogs i checked i thought it could be of Circlular Import
But i have already fixed that still am getting this error?
Thanks in Advance
Regards
I am not able to see any issue here technically. Maybe Django doesn't support this alias way of mentioning model as Foreign Key which I have never tried this way.
But I would suggest to use string format for adding Foreign Key of other model as below.
class CompanyProfile(models.Model):
full_name = models.CharField(max_length=255, unique = True)
# In following line, as I mention model name in string which django understands
country = models.ForeignKey('login.Country', on_delete=models.SET_NULL,
null=True,blank=False)
Another way is simple import but it might be a problem in case of circular depedencies. So I don't recommend to use that.
I hope you get the answer out of it.
When I go on localhost:8000/admin and click on "Quotes +ADD" it shows me error 500 instead of the editing interface. "Posts" works well. I just want to know if, without seeing the code, you could just tell me the different possible sources of this problem ?
EDIT: Here are models.py and admin.py:
models.py
class TimestampedModel(models.Model):
created = models.DateTimeField(auto_now_add = True)
updated = models.DateTimeField(auto_now = True)
class Meta:
abstract = True
# Create your models here.
class Post(TimestampedModel):
title = models.CharField(max_length = 255, default='')
intro = models.TextField(default='')
title_one = models.TextField(default='')
text_one = models.TextField(default='')
title_two = models.TextField(default='')
text_two = models.TextField(default='')
title_three = models.TextField(default='')
text_three = models.TextField(default='')
def __repr__(self):
return self.title
class Quote(models.Model):
quote = models.TextField(default='')
author = models.CharField(max_length = 60, default='')
def __repr__(self):
return self.quote
admin.py
from django.contrib import admin
from .models import Post, Quote
# Register your models here.
admin.site.register(Post)
admin.site.register(Quote)
I also would like to let you know that when I try to make migrations and then migrate, it says "No changes detected".
ProgrammingError at /admin/blog/quote/
relation "blog_quote" does not exist
LINE 1: SELECT COUNT(*) AS "__count" FROM "blog_quote"
I'll guess it might be OperationalError due to not running migrations for Quotes model.
Providing models.py and admin.py contents would make it much easier to debug though.
Hi i have a django model for notification which have a many-to-many relation but nothing appears in django admin ( all fields do not appear)
class Notification(models.Model):
"""send notification model"""
title = models.CharField(max_length=200)
text = models.TextField(null=True, blank=True)
device = models.ManyToManyField(Device, null=True, blank=True)
country = models.ManyToManyField(Country, null=True, blank=True)
sent = models.BooleanField(default=False)
when i open django admin for this model and press add notification this is what happens (nothing appears)
Country and Device Code
class Device(models.Model):
"""Store device related to :model:`accounts.User`."""
user = models.OneToOneField(User, related_name='device', on_delete=models.CASCADE)
model = models.CharField(max_length=200, blank=True, null=True)
player_id = models.CharField(max_length=200, blank=True, null=True)
class Meta:
verbose_name = 'Device'
verbose_name_plural = 'Devices'
def __str__(self):
return self.model
class Country(models.Model):
name = models.CharField(max_length=255)
def __str__(self):
return self.name
Admin.py
from django.contrib import admin
from .models import Notification
admin.site.register(Notification)
Edit:
Thank you all the problem is solved
The problem was caused by some entries in device model that did have None in the model field so there was a problem displaying it correctly.
According to https://code.djangoproject.com/ticket/2169 :
When a class has a field that isn't shown in the admin interface but
must not be blank, it's impossible to add a new one. You get a cryptic
"Please correct the error below." message with no shown errors. The
error message should probably say something about a hidden field.
Now ManyToManyFields don't need null=True, try removing those statements and see if you get an improvement.
Also, try adding the Country and Device models in admin.py so admin can see them and display them.
https://docs.djangoproject.com/en/1.11/ref/contrib/admin/#working-with-many-to-many-models
Define an inline for the many-to-manys in admin.py:
from django.contrib import admin
class DeviceInline(admin.TabularInline):
model = Notification.device.through
class CountryInline(admin.TabularInline):
model = Notification.country.through
class NotificationAdmin(admin.ModelAdmin):
inlines = [
DeviceInline, CountryInline
]
exclude = ("device", "country")
I have a Django app that works perfectly on google app engine, using the datastore via djangae. However, the admin site throws an error:
NotSupportedError at /admin/auth/user/5629499534213120/change/
Cross-join where filters are not supported on the Datastore
This error only occurs when trying to edit the default Django user model. Not sure why this is happening.
I have used the default Django user model. (this is an app dealing with donations for a nonprofit)
models.py:
from django.db import models
from django.contrib.auth.models import User
# Create your models here.
class FoodSplashUser(models.Model):
base_user = models.OneToOneField(User, on_delete=models.CASCADE)
address = models.TextField(null=True)
city = models.TextField(null=True)
state = models.CharField(max_length=4, null=True)
zip = models.CharField(max_length=10, null=True)
def __str__(self):
return str(self.base_user.username)
class Organization(models.Model):
base_user = models.OneToOneField(User, on_delete=models.CASCADE)
address = models.TextField(null=True)
city = models.TextField(null=True)
state = models.CharField(max_length=4, null=True)
zip = models.CharField(max_length=10, null=True)
description = models.TextField(null=True)
image_url = models.URLField(null=True)
def __str__(self):
return str(self.base_user.username)
class DonationRequest(models.Model):
organization = models.ForeignKey(Organization, on_delete=models.CASCADE)
timestamp = models.DateTimeField(auto_now=True)
request_type = models.TextField(null=True)
description = models.TextField(null=True)
def __str__(self):
return str(self.organization.base_user.username) + " " + self.request_type
class DonationPromise(models.Model):
user = models.ForeignKey(FoodSplashUser, on_delete=models.CASCADE)
donation_request = models.ForeignKey(DonationRequest, on_delete=models.CASCADE)
timestamp = models.DateTimeField(auto_now=True)
verified = models.BooleanField(default=False)
def __str__(self):
return str(self.user.base_user.username) + " " + str(self.donation_request)
This app goes with the default Django admin interface, but I decided to make the classes below for easy editing later.
admin.py:
from django.contrib import admin
from . import models
# Register your models here.
class FoodSplashUserAdmin(admin.ModelAdmin):
pass
class OrganizationAdmin(admin.ModelAdmin):
pass
class DonationRequestAdmin(admin.ModelAdmin):
pass
class DonationPromiseAdmin(admin.ModelAdmin):
pass
admin.site.register(models.FoodSplashUser, FoodSplashUserAdmin)
admin.site.register(models.Organization, OrganizationAdmin)
admin.site.register(models.DonationRequest, DonationPromiseAdmin)
admin.site.register(models.DonationPromise, DonationPromiseAdmin)
This may be a separate error, but :
admin.site.register(models.DonationRequest, DonationPromiseAdmin)
admin.site.register(models.DonationPromise, DonationPromiseAdmin)
Shouldn't that first one be: DonationRequestAdmin?
NotSupportedError indicates that your code performs an action that is not possible with App Engine Datastore. Not all the Django ORM features can be used in a non-relational database which Datastore is. You are trying to create an entity that has some relations, which causes the error. Probably it is a good idea to use Gauth for authentication and user management, as described in the Djangae docs.
Please have a look at my models.
class BackgroundImage(models.Model):
user = models.ForeignKey(User)
image = models.ImageField(upload_to=get_upload_file_name)
caption = models.CharField(max_length=200)
pub_date = models.DateTimeField(default=datetime.now)
class ProfilePicture(models.Model):
user = models.ForeignKey(User)
image = models.ImageField(upload_to=get_upload_file_name)
caption = models.CharField(max_length=200)
pub_date = models.DateTimeField(default=datetime.now)
class Album(models.Model):
user = models.ForeignKey(User)
name = models.CharField(max_length=200)
pub_date = models.DateTimeField(default=datetime.now)
class Meta:
ordering = ['-pub_date']
verbose_name_plural = ('Albums')
def __unicode__(self):
return self.name
class Photo(models.Model):
user = models.ForeignKey(User)
album = models.ForeignKey(Album, default=3)
image = models.ImageField(upload_to=get_upload_file_name)
caption = models.CharField(max_length=200)
pub_date = models.DateTimeField(default=datetime.now)
How do I get all the images of Photo, ProfilePicture and BackgroundImage from their image field in one set. And then filter them by -pub_date to display in the template? Please help me out. Will be much much appreciated! Thank you.
Edit
N.B: I need ProfilePicture and BackgroundImage to work with the UserProfile like this:
from django.db import models
from django.contrib.auth.models import User
from profile_picture.models import ProfilePicture
from background_image.models import BackgroundImage
class UserProfile(models.Model):
user = models.OneToOneField(User)
permanent_address = models.TextField()
temporary_address = models.TextField()
profile_pic = models.ForeignKey(ProfilePicture)
background_pic = models.ForeignKey(BackgroundImage)
def __unicode__(self):
return self.user.username
User.profile = property(lambda u: UserProfile.objects.get_or_create(user=u)[0])
There is an InheritanceManager provided as part of django-model-utils which allows you to do this, see docs.
To install in Linux / Mac:
sudo pip install django-model-utils
Annoyingly, installing using easy_install or pip on windows is not quite as straight forward, see: How do I install Python packages on Windows?. A quick and dirty method is to download the django-model-util/ directory from here into the top directory of your django project, this is handy if you intend to copy the entire project across for deployment to a production webserver.
In order to use the InheritanceManager, the models need to be refactored slightly:
from django.db import models
from django.contrib.auth.models import User
from datetime import datetime
from model_utils.managers import InheritanceManager
get_upload_file_name = 'images/' # I added this to debug models
class BaseImage(models.Model):
user = models.ForeignKey(User)
image = models.ImageField(upload_to=get_upload_file_name)
caption = models.CharField(max_length=200)
pub_date = models.DateTimeField(default=datetime.now)
objects = InheritanceManager()
class BackgroundImage(BaseImage):
pass
class ProfilePicture(BaseImage):
pass
class Album(models.Model):
user = models.ForeignKey(User)
name = models.CharField(max_length=200)
pub_date = models.DateTimeField(default=datetime.now)
class Meta:
ordering = ['-pub_date']
verbose_name_plural = ('Albums')
def __unicode__(self):
return self.name
class Photo(BaseImage):
album = models.ForeignKey(Album, default=3)
All the Image models now inherit from a common super class which creates an instance of the InheritanceManager. I've also moved up all the duplicated attributes into the superclass, but this isn't strictly necessary, using InheritanceManager means that any attributes which are not present in BaseImage can still be accessed in the template.
To retrieve a list ordered by -pubdate:
BaseImage.objects.select_subclasses().order_by("-pub_date")
To use in a view:
def recentImages(request):
r = BaseImage.objects.select_subclasses().order_by("-pub_date")[:20]
return render_to_response("recentImages.html", { "imageList" : r })
To use in a template:
{% for photo in imageList %}
<img src="{{ photo.image.url }}" />
{% endfor %}
Is this something like what you are looking for?
Edit
The following code will still work fine, with the new models:
class UserProfile(models.Model):
user = models.OneToOneField(User)
permanent_address = models.TextField()
temporary_address = models.TextField()
profile_pic = models.ForeignKey(ProfilePicture)
background_pic = models.ForeignKey(BackgroundImage)
Just make sure the names of the last two models in the ForeignKey relationship are correct!