Question
If istek.yorumlar_set.all reach at Istek.hedef I want change Istek.publish value to false
But, How do this is :D
If yours want to other models, i do upload
Model file :
class Istek(models.Model):
publish = models.BooleanField(default=True)
baslik = models.CharField(max_length=50)
zaman = models.DateTimeField(auto_now_add=True,editable=False)
kime = models.CharField(max_length=100)
sebep = models.CharField(max_length=30)
aciklama = models.TextField(max_length=500)
hangidua = models.ForeignKey(Dualar)
slug = models.SlugField(unique=True,editable=False)
hedef = models.IntegerField(help_text="Toplam da kaç dua istiyorsunuz : ")
def __str__(self):
return self.baslik
def save(self,*args , **kwargs):
self.slug = slugify(self.baslik)
super(Istek,self).save()
class Yorumlar(models.Model):
isim = models.CharField(max_length=50)
email = models.EmailField(max_length=50,null=True,blank=True)
websitesi = models.URLField(max_length=50,null=True,blank=True)
yorum = models.TextField()
dua = models.ForeignKey(Istek)
zaman = models.DateTimeField(auto_now_add=True)
def __unicode__(self):
return self.yorum
def __str__(self):
return self.isim+" : " +self.websitesi
class Meta:
ordering = ['zaman']
I'm not sure I understand your question. Is this what you want to achieve?
class Istek(models.Model):
...
def save(self,*args , **kwargs):
if self.yorumlar_set.count() > self.hedef:
self.publish = False
...
I'm solved this problem.Used django.signals.
Here code:
#receiver(post_save,sender=Yorumlar)
def change_true_or_false(instance,created,**kwargs):
instance.dua.toplamdua += 1
if instance.dua.toplamdua > instance.dua.hedef:
instance.dua.publish = False
instance.dua.save()
else:
instance.dua.save()
Related
I am a student who is learning Django. You tried to insert the designated_code on Views.py, but the following error occurs: I don't know how to solve it at all. How can we solve this?
The element.designed_code part of join_create seems to be the problem.
I'd be really happy if you could help me solve the problem. I know that there are 4 products in the designated code, but I want to add the designated code that corresponds to the value of the selected value code.
Error:
get() returned more than one Designated -- it returned 4!
Models.py
class Value(models.Model):
value_code = models.AutoField(primary_key=True)
option_code = models.ForeignKey(Option, on_delete=models.CASCADE, db_column='option_code')
product_code = models.ForeignKey(Product, on_delete=models.CASCADE, db_column='product_code')
name = models.CharField(max_length=32)
extra_cost = models.IntegerField()
def __str__(self):
return self.name
class Meta:
ordering = ['value_code']
class Designated(models.Model):
designated_code = models.AutoField(primary_key=True)
product_code = models.ForeignKey(Product, on_delete=models.CASCADE, db_column='product_code')
price = models.IntegerField()
rep_price = models.BooleanField(default=True)
class Meta:
ordering = ['designated_code']
def __str__(self):
return str(self.designated_code)
class Element(models.Model):
element_code = models.AutoField(primary_key=True)
designated_code = models.ForeignKey(Designated, on_delete=models.CASCADE, db_column='designated_code')
value_code = models.ForeignKey(Value, on_delete=models.CASCADE, db_column='value_code', null=True, blank=True)
class Meta:
ordering = ['element_code']
def __str__(self):
return str(self.element_code)
class Join(models.Model):
join_code = models.AutoField(primary_key=True)
username = models.ForeignKey(Member, on_delete=models.CASCADE, db_column='username')
product_code = models.ForeignKey(Product, on_delete=models.CASCADE, db_column='product_code')
part_date = models.DateTimeField(auto_now_add=True)
def __str__(self):
return str(self.join_code)
class Meta:
ordering = ['join_code']
Views.py
def join_create(request, id):
current_category = None
designated = Designated.objects.all()
designated_object = Designated.objects.filter(rep_price='True')
value_p = Value.extra_cost
element = Element.objects.all()
value_object = Value.objects.all()
categories = Category.objects.all()
products = Product.objects.all()
if not request.user.is_authenticated:
return HttpResponseRedirect(reverse('zeronine:login'))
if request.method == "POST":
product = Product.objects.get(product_code=id)
join = Join()
join.product_code = product
join.username = request.user
join.save()
if request.method == "POST":
form = ElementForm(request.POST)
if form.is_valid():
for value_code2 in request.POST.getlist('value_code2'):
element = Element()
element.designated_code = Designated.objects.get(product_code=id)
element.value_code = get_object_or_404(Value, pk=value_code2)
element.save()
else:
element = Element()
element.designated_code = Designated.objects.get(product_code=id)
element.value_code = None
element.save()
Forms.py
class ElementForm(forms.Form):
value_code2 = forms.ModelChoiceField(error_messages={'required': "옵션을 선택하세요."}, label="옵션", queryset=Value.objects.all())
I have a models with FileField for videos.
When i upload only one video i can return it with this code in the view.py:
def cours(request, id, slug):
c = Cours.objects.get(id=id, slug=slug)
p = Plan_simple.objects.get(cours=c)
return render(request, 'upload/cours.html', locals())
But when i upload two or more videos whith formset, and i change get fuction by filter it doesn't work:
def cours(request, id, slug):
c = Cours.objects.get(id=id, slug=slug)
p = Plan_simple.objects.filter(cours=c)
return render(request, 'upload/cours.html', locals())
the models.py
class Cours(models.Model):
titre = models.CharField(max_length=100)
slug = models.SlugField(max_length=100)
auteur = models.CharField(max_length=42)
comment = models.TextField(null=True)
link = models.CharField(max_length=100)
date = models.DateTimeField(default=timezone.now, verbose_name="Date de parution")
categorie = models.ForeignKey('Categorie', on_delete=models.CASCADE)
def save(self, *args, **kwargs):
self.slug = slugify(self.titre)
super(Cours, self).save(*args, **kwargs)
class Meta:
verbose_name = "cours"
db_table = "cours"
ordering = ['date']
class Plan_simple(models.Model):
partie = models.CharField(blank=True, max_length=100)
date = models.DateTimeField(default=timezone.now, verbose_name="Date de parution")
vid = models.FileField(upload_to='file/', blank=True, null = True)
cours = models.ForeignKey(Cours, related_name = "plan_simple", on_delete=models.CASCADE)
def __str__(self):
return self.partie
class Meta:
db_table = "plan_simple"
Can you help me?
Thanks
The issue is with this line. It does not request anything from the database. It only specifies a filter.
p = Plan_simple.objects.filter(cours=c)
You should change it to this...
p = Plan_simple.objects.filter(cours=c).all()
I am new to django and maybe this is a stupid question but i got stuck with this for a while now.. so i have a few categories of meds, like AINS, antidepressants and each of this category has its own meds, and i am trying to show my users all the meds of a specific category: so if a users types in www.namesite.com/meds/AINS the it will show only the meds for that specific category .. AINS.I think that i should get the absolute url of every category and filter all the meds in that specific category?
Model:
class Category(models.Model):
category = models.CharField(max_length=30)
slug = models.SlugField()
def __str__(self):
return self.category
def get_absolute_url(self):
return reverse("meds", kwargs={'slug':self.category})
class Meta:
verbose_name_plural = 'Categorii'
class Medicament(models.Model):
title = models.CharField(max_length=50)
description = models.TextField(max_length=200)
category = models.ForeignKey(Category, on_delete='CASCADE')
price = models.DecimalField(decimal_places=2, max_digits=4)
prospect = models.TextField(default='Prospect')
company = models.TextField(default = 'company')
nr_unitati = models.IntegerField()
quantity = models.CharField(max_length=5, default='mg')
date_added = models.DateTimeField(auto_now_add=True)
rating = models.IntegerField(null=True, blank=True)
amount = models.IntegerField(default=0)
def __str__(self):
return self.title + ' ' + self.company + ' ' + str(self.nr_unitati) + ' ' + self.quantity
class Meta:
verbose_name_plural = 'Medicamente'
Views:
class MedCategoriesView(DetailView):
model = Category
template_name = 'products/AINS.html'
context_object_name = 'all_categories'
def get_context_data(self, **kwargs):
context = super(AINS_ListView, self).get_context_data(**kwargs)
context['meds'] = Medicament.objects.filter(category=self.object)
return context
Urls:
path('medicaments/<slug>/', MedCategoriesView.as_view(), name='meds'),
Using function based views.
def medicament(request, slug):
try:
medicaments = Medicament.objects.filter(category__slug=slug)
except Medicament.DoesNotExist:
raise Http404("Medicament does not exist")
return render(request, 'products/AINS.html', {'medicaments': medicaments})
I have an object with foreign key Edp. A user can have several RespostaEdp as per the design. However, when printing the list I want to group them by user. Any ideas on how to get this done? I tried the solution below but I cannot access user values.
#teacher_required
def listarRespostasEDA(request):
edpsTodas = Edp.objects.all()
title = 'Estruturas Digitais Pedagogicas'
template = 'edp/listarEDArespondida.html'
edps = list()
for edp in edpsTodas:
if edp.respostas.all().count() != 0:
# if not edp.respostas.none:
edps.append(edp)
return render(request, template, {'title': title, 'edps': edps})
def listaAlunosResponderamEdp(request, slug):
edp = get_object_or_404(Edp, slug=slug)
# respostas = RespostaEdp.objects.filter(edp=edp)
lista = list()
respostas = RespostaEdp.objects.filter(edp=edp).values('aprendiz').distinct().order_by('aprendiz')
for r in respostas:
for k,v in r.items():
aluno = User.objects.filter(pk=v)
lista.append(aluno)
print (lista)
return render(request, 'edp/teste.html', {'lista':lista})
class RespostaEdp(models.Model):
edp = models.ForeignKey(Edp, verbose_name='Edp', related_name='respostas', on_delete=models.CASCADE)
video_embedded = EmbedVideoField(blank=True, null=True)
texto = models.TextField('Texto', blank=True)
video = models.FileField(upload_to='video/', storage=upload_storage, default="media/none.mp4")
aprendiz = models.ForeignKey(settings.AUTH_USER_MODEL, verbose_name='aluno', related_name='respostaAluno', on_delete=models.CASCADE)
# aprendiz = models.ForeignKey(Student, verbose_name='aprendiz ', related_name='respostaAprendiz', on_delete=models.CASCADE)
created_at = models.DateTimeField('Criado em', auto_now_add=True)
updated_at = models.DateTimeField('Atualizado em', auto_now=True)
def __str__(self):
return self.edp.titulo + " - " + self.aprendiz.username
def iniciar(self):
self.save()
#models.permalink
def get_absolute_url(self):
return ('edp:detalhe_edp_resposta', (), {'slug': self.slug})
class Meta:
verbose_name = 'Resposta Estrutura Digital de Aprendizagem'
verbose_name_plural = 'Resposta Estrutura Digital de Aprendizagem'
ordering = ['-created_at']
class User(AbstractUser):
eh_aluno = models.BooleanField(default=False)
eh_professor = models.BooleanField(default=False)
And here is the models of the users:
class User(AbstractUser):
eh_aluno = models.BooleanField(default=False)
eh_professor = models.BooleanField(default=False)
class Student(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE, primary_key=True)
def __str__(self):
return self.user.username
I get the error "" needs to have a value for field "dataset" before this many-to-many relationship can be used." when trying to assign values to a ManyToMany field in my views. I've looked at many related questions here on SO that say I must save my Dataset object first. I think I am doing that...what is going wrong?? My database already contains four Subject items.
models.py
class Subject(TimeStampedModel):
subject_type = models.CharField(max_length=128, blank=False)
def __unicode__(self):
return self.subject_type
class Dataset(TimeStampedModel):
dataset_id = models.CharField(max_length=256)
dataset_doi = models.CharField(max_length=15)
dataset_name = models.CharField(max_length=256, blank=False)
dataset_description = models.TextField(blank=False)
lab = models.CharField(max_length=256, blank=False)
biological_sample = models.CharField(max_length=256, blank=False)
subject_type = models.ManyToManyField('Subject', related_name='datasets', blank=True)
date_collected = models.DateField(blank=True)
collection_facility = models.ManyToManyField('CollectionFacility', related_name='datasets', blank=True)
processing_notes = models.TextField(blank=True)
release_date = models.DateField()
release_asap = models.BooleanField()
pdb_code = models.CharField(max_length=256, blank=True)
publication_link = models.URLField(blank=True)
def create_name(self):
self.dataset_name = "%s %s" % (self.biological_sample, self.lab)
def save(self, *args, **kwargs):
self.dataset_id = self.id
def __unicode__(self):
return "%s : %s" % (self.dataset_name, self.dataset_id)
forms.py RegistrationForm:
class RegistrationForm(forms.Form):
subject_type = forms.ModelMultipleChoiceField(
label="Subject",
queryset = Subject.objects.all(),
widget=forms.CheckboxSelectMultiple(),
required = True,
)
views.py
def create_registration(form):
dataset = Dataset()
dataset.DOI = "preUpload"
dataset.lab = form.cleaned_data['lab']
dataset.biological_sample = form.cleaned_data['sample']
dataset.resource_type = form.cleaned_data['dataset_type']
dataset.dataset_description = form.cleaned_data['dataset_description']
dataset.date_collected = form.cleaned_data['date_collected']
dataset.release_date = form.cleaned_data['release_date']
dataset.release_asap = form.cleaned_data['release_asap']
if form.cleaned_data['pdb_code']:
dataset.pdb_code = form.cleaned_data['pdb_code']
if form.cleaned_data['publication_link']:
dataset.publication_link = form.cleaned_data['publication_link']
dataset.create_name()
dataset.save() # I don't think this save is working?
subjects = form.cleaned_data['subject_type']
dataset.subject_type = [x for x in subjects]
for facility in form.cleaned_data['facility']
dataset.collection_facility.add(facility)
dataset.save()
return dataset
def registration_submit(request):
registration_form = RegistrationForm(request.POST)
if registration_form.is_valid():
registration = create_registration(registration_form)
.......
You forgot to call the original save() in the overriden Dataset.save() method.
def save(self, *args, **kwargs):
self.dataset_id = self.id
super(Dataset, self).save(*args, **kwargs)