I have a Task model. I want to assign task to multiple users so i have taken ManytoMany relationship. So Django is creating a ManytoMany table but i want to track that which user has completed task and when. So I took intermediary model by using through='TaskComplete'. Now I can not see task_assign_to feild in form. And even i declare in modelForms and submit it gives below error.
Cannot set values on a `ManyToManyField` which specifies an intermediary model. Use audit.TaskComplete's Manager instead.
Now I want that admin selects the user from main form and into intermediary model.
I tried but can not find any solution for this. below is my code. Please guide me how to do it?
My Model:
class Task(models.Model):
task_audit_title = models.ForeignKey(MainAudit,on_delete= models.CASCADE, related_name='audit_title_for_task',verbose_name= ('Audit Title'))
task_subtask_name = models.ManyToManyField(SubTask, related_name='subtask_for_task',verbose_name= ('Subtask Title'))
task_subject = models.CharField(verbose_name= ('Task Subject'),max_length=100,blank=False)
task_description = models.CharField(verbose_name= ('Task Description'),max_length=1000,blank=True)
task_assign_to = models.ManyToManyField(User, related_name='task_assign_to', through='TaskComplete')
task_assign_by = models.ForeignKey(User,on_delete= models.CASCADE, related_name='task_crt_by')
task_deadline = models.DateTimeField(null=True,blank=True)
task_perticulars = models.ManyToManyField(Perticular, related_name='task_perticular', blank=True)
task_created_time = models.DateTimeField(default=timezone.now)
task_modified_by = models.ForeignKey(User,on_delete= models.CASCADE, related_name='task_mod_by', null=True, blank=True)
task_modified_time = models.DateTimeField(null=True,blank=True)
is_del = models.BooleanField(default=0)
class Meta:
permissions = (
("change_temp_delete_task", "Can delete temporarily"),
)
def __str__(self):
return self.task_subject
def get_absolute_url(self):
return reverse('create-task')
class TaskComplete(models.Model):
task_title = models.ForeignKey(Task,on_delete= models.CASCADE, related_name='assigned_task')
is_completed = models.BooleanField(default=0)
task_cmt_by_doer = models.CharField(verbose_name= ('Submit Comment'),max_length=100,blank=True)
completed_by = models.ForeignKey(User,on_delete= models.CASCADE, related_name = 'task_completed_by')
completed_time = models.DateTimeField(null=True,blank=True)
My View:-
class TaskCraeteView(LoginRequiredMixin,SuccessMessageMixin,CreateView):
# permission_required = 'Company.add_company'
model=Task
success_message = " Task Craeted successfully!"
reverse_lazy('create-task')
login_url = 'login'
template_name = 'create-task'
form_class = TaskCreateForm
# fields =[]
def form_valid(self,form):
form.instance.task_assign_by = self.request.user
My traceback my traceback link
My Form
class TaskCreateForm(forms.ModelForm):
class Meta:
model = Task
fields = ['task_audit_title','task_subtask_name','task_subject','task_description',
'task_assign_to','task_deadline','task_perticulars']
Related
models.py
#
from django.db import models
from user.models import User
from chat.models import TradeChatRoom, AuctionChatRoom
class Goods(models.Model):
class Meta:
db_table = 'Goods'
ordering = ['-created_at'] # 일단 추가해뒀습니다
seller = models.ForeignKey(User, on_delete=models.CASCADE, related_name='sell_goods')
buyer = models.ForeignKey(User, on_delete=models.CASCADE, related_name='buy_goods', null=True)
trade_room = models.ForeignKey(TradeChatRoom, on_delete=models.CASCADE)
auction_room = models.ForeignKey(AuctionChatRoom, on_delete=models.CASCADE)
title = models.CharField(max_length=256)
content = models.TextField()
category = models.CharField(max_length=32)
status = models.BooleanField(null=True)
predict_price = models.IntegerField()
start_price = models.IntegerField()
high_price = models.IntegerField(null=True)
start_date = models.DateField(null = True)
start_time = models.DateTimeField(null=True)
created_at = models.DateTimeField(auto_now_add=True)
like = models.ManyToManyField(User, related_name='like_goods', null=True)
class GoodsImage(models.Model):
class Meta:
db_table = "GoodsImage"
goods = models.ForeignKey(Goods, on_delete=models.CASCADE)
image = models.ImageField(upload_to='goods/')
serializer.py
from rest_framework import serializers
from .models import Goods,GoodsImage
class GoodImageSerializer(serializers.ModelSerializer):
image = serializers.ImageField(use_url=True)
def get_image(self, obj):
image = obj.goods_set.all()
return GoodsPostSerializer(instance=image, many = True, context = self.context)
class Meta:
model = GoodsImage
field =('image',)
class GoodsPostSerializer(serializers.ModelSerializer):
image = GoodImageSerializer(many=True, read_only = True)
class Meta:
model = Goods
fields = (
'seller', 'buyer','auction_room','title','content',
'category','status','predict_price','start_price','high_price',
'trade_room','start_date','start_time','created_at','like','image',
)
read_only_fields = ("seller",)
def create(self, validated_data):
goods = Goods.objects.create(**validated_data)
images_data = self.context['request'].FILES
for image_date in images_data.getlist('image'):
GoodsImage.objects.create(goods = goods, image = image_date)
return goods
error
images_data = self.context['request'].FILES
KeyError: 'request'
I want to save multiple images, but I keep getting an error. I don't know what to do anymore.
I searched for a method and followed it, but it seems that I am the only one who gets an error.
Please help if you know how to solve this problem.
And I want to know if it is correct to put it in a list like "image":["12.jpeg,"13.jpeg] when inserting multiple images through postman.
It's hard not being able to solve this problem. please help me if you know the answer
Change GoodImageSerializer calling this:
GoodImageSerializer(instance=images, many = True, context={'request': request})
Then change your GoodsPostSerializer's create method like this:
def get_image(self, obj):
image = obj.goods_set.all()
request = self.context['request']
return GoodsPostSerializer(instance=image, many = True, context={'request': request})
Let us imagine that I have two models.
First model contains curse details and user that created this course
class Course(models.Model):
course_name = models.CharField(max_length=100, null=False)
description = models.CharField(max_length=255)
user_profile = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
and my second model is:
class Lesson(models.Model):
course = models.OneToOneField(Course, on_delete=models.CASCADE) #
# inside the course I want my APIVIEW to list only the courses that current user created.
# OnetoOne relationship does not solve the problem.
status = models.CharField(choices=STATUS, null=False, default=GOZLEMEDE,max_length=20)
tariffs = models.FloatField(max_length=5,null=False,default=0.00)
continues_off = models.CharField(max_length=2)
user_profile = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
My serializers for both Models:
class LessonSerializer(serializers.ModelSerializer):
class Meta:
model = models.Lesson
fields = ('course', 'status', 'tariffs', 'continues_off', 'user_profile')
def create(self, validated_data):
lesson = models.Lesson.objects.create(
course = validated_data['course'],
status = validated_data['status'],
tariffs=validated_data['tariffs'],
continues_off=validated_data['continues_off'],
user_profile=validated_data['user_profile']
)
return lesson
class CourseSerializer(serializers.ModelSerializer):
"""Serializers Course content"""
class Meta:
model = models.Course
fields = '__all__'
def create(self,validated_data):
course = models.Course.objects.create(
course_name = validated_data['course_name'],
description=validated_data['description'],
user_profile=validated_data['user_profile']
)
return course
My Viewset:
class LessonViewset(viewsets.ModelViewSet):
model = models.Lesson
serializer_class = serializers.LessonSerializer
authentication_classes = (SessionAuthentication,)
permission_classes = (IsAuthenticated,BasePermission,)
def get_queryset(self):
user_current = self.request.user.id
return models.Lesson.objects.filter(user_profile=user_current)
How can I get the desired result. I want to get the courses for the current user and show them as a dropdown list in my API view. Just only the courses that user created should be in the dropdown list not all.
OnetoOne relationship gives all results of course table.
i think change your view code to :
def get_queryset(self,id):
return model.objects.filter(user_profile=id)
#You do not need to call it again when you put the Lesson on the model
\
i developed a blog project by watching many open-source courses and create my own django custom admin dashboard where i want to add a category option to my blog project, i have watched some tutorial on as well but couldn't find them helpful
models.py
from django.db import models
from django.forms import ModelForm
from farmingwave.models import BaseHeader,Submenu
class Category(models.Model):
mainmenu=models.ForeignKey(BaseHeader,null=True,on_delete=models.SET_NULL)
submenu=models.ForeignKey(Submenu,on_delete=models.CASCADE)
class AdSideMenu(models.Model):
title_id = models.AutoField(primary_key=True)
title_name = models.TextField()
url = models.TextField()
priority = models.IntegerField()
submenu_status = models.TextField()
class Meta:
db_table = 'admin_side'
class CreateBlog(models.Model):
id = models.AutoField(primary_key=True)
blog_Title = models.TextField(max_length=100)
content = models.TextField(max_length=5000)
category = models.ForeignKey(Category,null=True,on_delete=models.SET_NULL)
class Meta:
db_table = 'create_blog'
they are inhereting data from another app
models.py
`class BaseHeader(models.Model):
main_id = models.AutoField(primary_key=True)
title_name = models.TextField()
url = models.TextField()
priority = models.IntegerField()
submenu_status = models.TextField("false")
class Meta:
db_table = 'base_header'
class Submenu(models.Model):
sub_id = models.AutoField(primary_key=True)
main_id = models.IntegerField()
sub_name = models.TextField()
url = models.TextField()
priority = models.IntegerField()
mainmenu=models.ForeignKey(BaseHeader,on_delete=models.CASCADE)
class meta:
db_table = 'base_subheader'`
and the view function:
def create_blog(request):
if request.method =='POST':
form = CreateBlogForm(request.POST)
if form.is_valid():
form.save()
form = CreateBlogForm()
else:
form = CreateBlogForm()
base = BaseHeader.objects.all()
sub = Submenu.objects.all()
create = CreateBlog.objects.all()
category = Category.objects.all()
context = {
'form' : form,
'createblog' : create,
'category' : category,
'menu' : base,
'sub_menu' : sub,
Why not make the category a select item?
CATEGORY_CHOICES = (
('sports', 'sports'),
('tech', 'tech'),
('politics', 'politics')
)
category = models.CharField(max_length=100, choices=CATEGORY_CHOICES, blank=False)
You'd be able to access it like any other field now, so let's say the user clicked on "Politics articles" you can add a .filter(category="politics") and access it in the templates through {{ article.category }}
I don't know why there are all of these lines in your code, nor do I know the scale of your project, but that's how I would go about doing it.
I am trying to generate a random object from my Model. The problem is that it will only work one time, then I have to restart the server to get a new object. It just keeps giving me the same object until the restart.
I have been looking for solution on stack overflow but haven't found any.
Views.py
def dailyaskist(category):
qs = Task.objects.filter(category=category)
max_num = len(qs)
while True:
pk = random.randint(1, max_num)
task = Task.objects.filter(pk=pk).first()
if task:
return task.pk
class DailyTaskEcommerceViewSet(viewsets.ModelViewSet):
category = 'ecommerce'
task_pk = dailyaskist(category)
queryset = Task.objects.filter(pk=task_pk)
serializer_class = TaskSerializer
serialisers.py
class StepSerializer(serializers.HyperlinkedModelSerializer):
task_id = serializers.PrimaryKeyRelatedField(queryset=Task.objects.all(), source='task.id')
class Meta:
model = Step
fields = ('title', 'description', 'done', 'task_id')
class TaskSerializer(serializers.HyperlinkedModelSerializer):
steps = StepSerializer(many=True, read_only=True)
class Meta:
model = Task
fields = ('title', 'description', 'video', 'done', 'steps')
models.py
Categories = (
('ecommerce', 'Ecommerce'),
)
class Task(models.Model):
title = models.CharField(max_length=50)
description = models.TextField(max_length=360)
video = models.CharField(max_length=30, default='')
category = models.CharField(choices=Categories, default='', max_length=30)
done = models.BooleanField(default=False)
def __str__(self):
return self.title
class Step(models.Model):
task = models.ForeignKey(Task, related_name='steps', on_delete=models.CASCADE)
title = models.CharField(max_length=50)
description = models.TextField(max_length=360)
done = models.BooleanField(default=False)
def __str__(self):
return self.title
I want to receive a new object (task) each time I make a GET request using the DailyTaskEcommerceViewSet.
Thanks in advance! :D
You would do this in a method. In this case, get_queryset seems the right place.
class DailyTaskEcommerceViewSet(viewsets.ModelViewSet):
serializer_class = TaskSerializer
category = 'ecommerce'
def get_queryset(self):
task_pk = dailyaskist(self.category)
return Task.objects.filter(pk=task_pk)
Here is my model:
class Browser(models.Model):
profile_name = models.CharField(max_length=400)
browser_type = (
('fr', 'Firefox'),
('ch', 'Chrome'),
('op', 'Opera'),
('ot', 'Other'),
)
browser_name = models.CharField(choices=browser_type, max_length=2)
device_name = models.CharField(max_length=400)
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(auto_now=True)
class Bookmark(models.Model):
browser = models.ForeignKey(Browser, on_delete=models.CASCADE, null=True, blank=True)
title = models.TextField()
url = models.TextField()
iv = models.TextField()
salt = models.TextField()
iteration = models.IntegerField(default=1500)
tags = TaggableManager()
I only want to update certain fields, so here is the modelform
class BookmarkFormEdit(ModelForm):
class Meta:
model = Browser
exclude = ('tags', 'browser_name', 'device_name', 'profile_name')
but my problem is, values are not updating as expected . Here is the view:
def bookmark_edit(request, pk=None):
if request.method == 'POST':
bookmark = Bookmark.objects.get(pk=pk)
frm = BookmarkFormEdit(request.POST, instance=bookmark)
print(request.POST.get('iteration')) // printing correct value from front-end
if frm.is_valid():
x = frm.save()
print(x.iteration) // not saving the new value !
return JsonResponse({'status': 'created'})
else:
return JsonResponse({'error': frm.errors})
return render(request, 'bookmark_edit.html', {'pk': pk})
You are incorrectly defined model in the form. You should use Bookmark model instead of Browser.
class BookmarkFormEdit(ModelForm):
class Meta:
model = Bookmark
You may need to define fields to include/exclude as you want for this model.