How can i use in my views instances from other class?
For example in my views i have:
MODELS
class Projekt(models.Model):
nazwa_projektu = models.CharField(max_length=200, unique=True)
opis_projektu = models.TextField()
wybor_projekt = models.CharField(max_length=100, choices=wybor_t_f, default="FALSZ")
VIEWS
def ProjektViewOptions(request, pk):
profil = Profil.objects.get(user=request.user)
projekt = Projekt.objects.get(id=pk)
srodek = projekt.srodek_set.all
form = OptionsForm(request.POST or None)
template_name = 'viewOptionsProjekt.html'
if request.method == "POST":
if form.is_valid():
pro.wybor_projekt = 'PRAWDA'
pro.save()
opcje = form.save(commit=False)
opcje.wlasciciel = profil
opcje.projekt = projekt
opcje.save()
opcje.wybor = 'PRAWDA'
form.save()
I want to do that, if i create a new Project this project have a options "FALSZ" when I "POST" this options will turn into the "PRAWDA"
I tried do :
opcje.projekt.wybor_projekt = "PRAWDA"
But this unfortunately dont work.
I dont want full solution. I need a little direction. ;)
Related
I'm doing a edit form for some data. I'm having problem to pass information to . As you can see in my view, I pass the data to form using "initial" dictionary.
VIEWS.PY
#login_required
def project_detail(request, project_id):
if request.method == 'POST':
project = get_object_or_404(Project, pk=project_id)
form = ProjectDetailForm(project_id, request.POST, instance = project)
if form.is_valid():
instance = form.save(commit=False)
instance.client = Project.objects.get(pk=project_id).client
form.save()
messages.success(request,'Projeto modificado')
return redirect('projects')
else:
messages.error(request,'Ocorreu um erro!')
else:
project = get_object_or_404(Project, pk=project_id)
form = ProjectDetailForm(project_id, initial={'modal':project.modal,
'culture':project.culture,
'owner':project.owner,
'value':project.value,
'final_date':project.final_date,
'text':project.text,
'status':project.status,
'farm':project.farm.values()})
return render(request,'project_detail.html',{'form':form})
But doing this, the data is not displaied in . Thinking here, ManyToManyField saves data in lists. I tried iterate this field but still not working and I guess thats not the best way to do this.
MODELS.PY
class Project(models.Model):
modal_types = [('CUSTEIO AGRÍCOLA','Custeio Agrícola'),('CUSTEIO PECUÁRIO','Custeio Pecuário'),('INVESTIMENTO AGRÍCOLA','Investimento Agrícola'),('INVESTIMENTO PECUÁRIO','Investimento Pecuário'),('FGPP','FGPP')]
status_opts = [('Análise','Análise'),('Desenvolvimento','Desenvolvimento'),('Processamento','Processamento'),('Liberação','Liberação'),('Finalizado','Finalizado'),('Cancelado','Cancelado'),('Suspenso','Suspenso')]
farm = models.ManyToManyField(Farm, related_name='farm_name',verbose_name='Propriedade beneficiada')
client = models.ForeignKey(Clients, on_delete=models.CASCADE, related_name='project_client',default=None,null=True, verbose_name='Cliente')
owner = models.ForeignKey(Owner, on_delete=models.CASCADE, related_name='project_bidder',default=None,null=True, verbose_name='Proponente')
warranty = models.ManyToManyField(Farm, related_name='project_warranty',default=None, verbose_name='Propriedade de garantia')
modal = models.CharField(max_length=100,default=None,choices=modal_types, null=True, verbose_name='Tipo')
culture = models.CharField(max_length=50,null=True, verbose_name='Cultura')
status = models.CharField(max_length=50,null=True, verbose_name='Status', choices=status_opts)
created_date = models.DateField(null=True, verbose_name='Data de criação')
value = models.FloatField(max_length=10,null=True, verbose_name='Valor financiado')
final_date = models.DateField(default=None,null=True, verbose_name='Fim do contrato')
text = models.TextField(default=None,null=True, verbose_name='Observações')
forms.py
class ProjectDetailForm(ModelForm):
class Meta:
model = Project
fields = ['status','owner', 'farm', 'warranty', 'modal', 'culture', 'value','final_date','text']
def __init__(self, project_id, *args, **kwargs):
client_id = Project.objects.get(pk=project_id).client
super(ProjectDetailForm,self).__init__(*args,**kwargs)
self.fields['value'].required = False
self.fields['final_date'].required = False
self.fields['text'].required = False
self.fields['farm'].queryset = Farm.objects.filter(client=client_id)
self.fields['warranty'].queryset = Farm.objects.filter(client=client_id)
for field_name, field in self.fields.items():
field.widget.attrs['class'] = 'form-control'
Here all the fields with information, but in "select" nothing is selected, despite having data in the database
Someone can help me?
Why are you passing 'project_id' into your form class instance? Try changing this:
form = ProjectDetailForm(project_id, request.POST, instance = project)
to this:
form = ProjectDetailForm(request.POST, instance = project)
and see if it helps. Also in your form initialization, I'm not sure you're using the "initial=" values dictionary correctly. Initial values are typically defaults applicable to the "create" view, not database records that it sounds like you want to see in an update view. I think you want to pass in the instance of your database record there, something like:
else:
project = get_object_or_404(Project, pk=project_id)
form = ProjectDetailForm(instance=project)
Also, you really don't need to write project object query twice in this view. You can do something like:
def project_detail(request, project_id):
project = get_object_or_404(Project, pk=project_id) # query this once here
if request.method == 'POST':
form = ProjectDetailForm(request.POST, instance=project)
if form.is_valid():
instance = form.save(commit=False)
instance.client = Project.objects.get(pk=project_id).client
form.save()
messages.success(request,'Projeto modificado')
return redirect('projects')
else:
messages.error(request,'Ocorreu um erro!')
# you probably want a redirect here as well
else:
form = ProjectDetailForm(instance=project)
return render(request,'project_detail.html',{'form':form})
Finally, if you're trying to limit the choices from your ManyToMany field in the user's form, you can do so with something like this:
class ProjectDetailForm(forms.ModelForm):
class Meta:
model = YourModelName
fields = ['farm']
farm = forms.ModelMultipleChoiceField(
queryset=Farm.objects.filter(some_field=some_criteria).order_by('some_field'),
widget=forms.CheckboxSelectMultiple)
More info about widgets on form classes here in Django docs.
models.py
from django.db import models
from django.contrib.auth.models import User
# Create your models here.
class Customer(models.Model):
user = models.OneToOneField(User,null=True,blank=True,on_delete=models.CASCADE)
name = models.CharField(max_length=200,null=True)
## phone = models.IntegerField(null=True)
email = models.EmailField(max_length=250)
profile_pic = models.ImageField(default='default_pic.png',null=True,blank=True)
date_created = models.DateTimeField(auto_now_add=True,null=True)
def __str__(self):
return self.name
class Task(models.Model):
customer = models.ForeignKey(Customer,on_delete=models.CASCADE,null=True)
title = models.CharField(max_length=200)
description = models.TextField(null=True,blank=True)
complete = models.BooleanField(default=False)
created = models.DateTimeField(auto_now_add=True)
def __str__(self):
return self.title
class Meta:
ordering = ['complete']
views.py
#login_required(login_url='login')
def taskCreate(request):
if request.method == 'POST':
form = TaskForm(request.POST or None)
if form.is_valid():
form.instance.customer = request.user
form.save()
return redirect('tasks')
else:
form = TaskForm()
context = {'form':form}
return render(request,'todo_list/task_create.html',context)
Error:
ValueError at /create_task/
Cannot assign "<SimpleLazyObject: <User: Dominic>>": "Task.customer" must be a "Customer" instance.
I am trying to link the username in the user account to be shown on the model Task.customer that represents the post is created by that user. May I ask any methods could be done in order to specify the customer in the model Task? Also I do not understand the error message in detail because my admin panel already has the current username in the Customer model. However if I used request.user.customer the username does not show up instead returning None so how to solve this issue?
I don't know form.instance.customer = request.user
but I think I understood what you meant and the below code does the same thing
#login_required(login_url='login')
def taskCreate(request):
if request.method == 'POST':
form = TaskForm(request.POST or None)
if form.is_valid():
t = form.save(commit = False)
t.customer = request.user # assigning current user to created task.customer
t.save()
return redirect('tasks')
else:
form = TaskForm()
context = {'form':form}
return render(request,'todo_list/task_create.html',context)
if the code is still not working then try changing your line
customer = models.ForeignKey(Customer,on_delete=models.CASCADE,null=True) to
customer = models.ForeignKey(User,on_delete=models.CASCADE,null=True) in your models.py
The error comes from the following snippet
form.instance.customer = request.user
request.user is not a Customer instance, you can try extracting the information from request.user and create a Customer object from it and then assign it back
I am trying to create an endpoint to edit both the user model and custom profile model below.
models.py
class Profile(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
bio = models.TextField(max_length=500)
location = models.CharField(max_length=50)
image = models.ImageField(default='default.jpg', upload_to='profile')
In the regular django I would do:
views.py
def edit_profile(request):
if request.method == 'POST':
form = EditProfileForm(request.POST, instance=request.user)
extended_profile_form = ProfileForm(request.POST,
request.FILES,
instance=request.user.profile)
if form.is_valid() and extended_profile_form.is_valid():
form.save()
extended_profile_form.save()
return redirect('accounts:profile')
else:
form = EditProfileForm(instance=request.user)
extended_profile_form = ProfileForm(instance=request.user.profile)
context = {
'form':form,
'extended_profile_form':extended_profile_form
}
return render(request, 'accounts/edit-profile.html', context)
what is the equivalent for django rest framework?
I have tried:
views.py (Django Rest Framework)
#api_view(['GET','PUT'])
def profile(request):
if request.method == 'GET':
user = User.objects.filter(username=request.user)
profile_user = Profile.objects.filter(user=request.user)
serializer_user = UserSerializer(user, many=True)
serializer_profile_user = ProfileSerializer(profile_user, many=True)
result = {'serializer_user': serializer_user.data, 'serializer_profile_user': serializer_profile_user.data}
return Response(result)
elif request.method == 'PUT':
user = User.objects.filter(username=request.user)
profile_user = Profile.objects.filter(user=request.user)
serializer_user = UserSerializer(user, data=request.data)
serializer_profile_user = ProfileSerializer(profile_user, data=request.data)
if serializer_user.is_valid() and serializer_profile_user.is_valid():
serializer_user.save()
serializer_profile_user.save()
result = {'serializer_user': serializer_user.data, 'serializer_profile_user': serializer_profile_user.data}
return Response(result)
result = {'serializer_user': serializer_user.data, 'serializer_profile_user': serializer_profile_user.data}
return Response(result.errors, status=status.HTTP_400_BAD_REQUEST)
When I am browsing the endpoint, it does display serializer_user and serializer_profile_user data but I am unable to edit any of those data using the DRF browsable API.
Am I right thinking the codes above is the equivalent of the codes from the codes from the normal django to edit the profile of the user?
It looks fine to me, but you need to replace this:
if request.method == 'GET':
user = User.objects.filter(username=request.user)
with this:
if request.method == 'GET':
try:
user = User.objects.get(id=request.user.id)
except User.DoesNotExist:
return Response(data='no such user!', status=status.HTTP_400_BAD_REQUEST)
# you need to use objects.get because objects.filter returns a queryset not an abject
Because, request.user is an instance of User model, you cannot compare it to an attribute of user (in your case username)
PS: same goes with your PUT method as well.
Hope this helps!
Look. You can make it easier. Let's take Post model (for example):
class Post(models.Model):
author = models.ForeignKey(base.AUTH_USER_MODEL, on_delete=models.CASCADE)
title = models.CharField(max_length=50)
text = models.TextField()
likes = models.ManyToManyField(base.AUTH_USER_MODEL, blank=True, related_name='post_likes')
created_date = models.DateTimeField(default=timezone.now)
And that You should describe it in your serializer (serializer is something similar to DTO. It converts data into a service-friendly JSON view):
class PostCreateUpdateSerializer(serializers.ModelSerializer):
class Meta:
model = Post
fields = ['id', 'title', 'text']
And the last part - Endpoint:
class PostUpdateView(UpdateAPIView):
serializer_class = PostCreateUpdateSerializer
def get_queryset(self):
return Post.objects.filter(author=self.request.user)
It will be more comfortable to use CBV for Django and DRF
And One more thing. You shouldn't create one more table for your user model. This is due to the extension of the BaseUser model. Link for help
This is my current Admin Interface:
A user inputs text through a form & model called "UserText". I have written a function using NLP to extract only the questions from the UserText. I would like each of these individual questions to be displayed in each "User question" section of the Admin Interface. As of now, I cannot get that to work.
Here is my current code:
Models.py
class UserText(models.Model):
user_input = models.TextField()
class Question(models.Model):
user_text = models.ForeignKey(
UserText,
on_delete=models.CASCADE,
blank=True,
null=True,
)
user_questions = models.CharField(max_length=2000)
Views.py
def user_text_view(request):
form = forms.UserTextForm()
if request.method == 'POST':
form = forms.UserTextForm(request.POST)
if form.is_valid():
UserText = models.UserText
Question = models.Question
user_input = request.POST.get('user_input', '')
user_input_obj = UserText(user_input = user_input)
user_questions_obj = Question(user_text = user_input_obj,
user_questions = Question_Init(user_input_obj))
user_input_obj.save()
user_questions_obj.save()
print("Thanks for the questions!")
else:
form = forms.UserTextForm()
return render(request, 'text_input_form.html', {'form': form})
Admin.py
class QuestionInLine(admin.StackedInline):
model = Question
display = ('user_questions_obj')
#admin.register(UserText)
class UserTextAdmin(admin.ModelAdmin):
model = UserText
display = ('user_input')
inlines = [
QuestionInLine,
]
And finally my function:
def Question_Init(user_input_obj):
Beginning_Question_Prompts = ("Who","Whom","What","Where","When","Why","Which",
"Whose","How","Was","Were","Did","Do","Does","Is")
Ending_Question_Prompts = ("?",":","...")
questions = []
text1 = user_input_obj.user_input
textList = sent_tokenize(text1)
for sentence in textList:
if sentence.startswith(Beginning_Question_Prompts):
questions.append(sentence)
if sentence.endswith(Ending_Question_Prompts):
questions.append(sentence)
return questions
I know this is a lot, sorry, but I do not know how to get each question to populate the question fields in my Admin Interface. Thanks
The problem is not your admin interface, but how you create the Question objects. You need to iterate through the result of your function and create linked items for each one:
for question_text in Question_Init(user_input_obj):
user_questions_obj = Question(user_text=user_input_obj,
user_questions=question_text)
user_questions_obj.save()
I have a Modelform:
class POwner4NewModel(ModelForm):
class Meta:
model = ProductOwner
exclude = ("o_owner","o_owner_desc","o_product_model","o_main_image","o_thumbnail","o_gallery_images","o_timestamp","o_status")
This is the model's schema:
class ProductOwner(models.Model):
o_owner = models.ForeignKey(User, verbose_name="Owner")
o_owner_desc = models.TextField(verbose_name="Seller Description")
o_product_model = models.ForeignKey(ProductModel, verbose_name="Product")
o_main_image = models.ImageField(upload_to=settings.CUSTOM_UPLOAD_DIR, verbose_name="Product Main Image", blank=True)
o_thumbnail = models.ImageField(upload_to=settings.CUSTOM_UPLOAD_DIR, verbose_name="Product Thumbnail (100x100)px", blank=True)
o_gallery_images = models.ManyToManyField(ProductImages, verbose_name="Product Gallery Images", related_name="product_images", blank=True)
o_status = models.CharField(max_length=100, choices=PRODUCT_STATUS, verbose_name="Product Status", default="approved")
o_timestamp = models.DateTimeField(auto_now_add=True, verbose_name="Date Created")
o_internationlisation = models.ManyToManyField(Countries, verbose_name="Available in", related_name="product_countries")
This is my code trying to save the form:
def save_m_owner(self, request):
form = POwner4NewModel(request.POST, request.FILES)
form = form.save(commit=False)
form.o_owner = request.user
form.o_owner_desc = self.product_model.p_description
form.o_product_model = self.product_model
form.o_status = "unapproved"
form.o_main_image = self.product_model.p_main_image
form.save()
I've tried adding form.save_m2m() but it says form does not have that attribute. So now, in the field using o_internationlisation, the m2m is not saved. I'm not sure what I'm doing wrong here, could use some help, thanks!
form doesn't have save_m2m() because you overwrote form with a model instance when you did form = form.save(commit=False)
try using something else like instance = form.save(commit=False) etc. then you should be able to use form.save_m2m() (of course after the instance.save()).