Have a quick question. Trying to use a relational model in one DetailView. However, no matter what I try the data does not display. I've tried a few versions of template tags to no avail.
html
{% for parts in relatedparts %}{{ parts.name }}
</div>{% endfor %}
views.py
class ErrorCodeView(DetailView):
context_object_name = 'error_code_details'
model = models.ErrorCodes
template_name = 'error_code_details.html'
def get_context_data(self, **kwargs):
# xxx will be available in the template as the related objects
context = super(ErrorCodeView, self).get_context_data(**kwargs)
context['relatedparts'] = RelatedParts.objects.filter(name=self.get_object())
return context
models.py
class ErrorCodes(models.Model):
name = models.CharField(max_length=256)
description = models.CharField(max_length=400)
instructions = models.CharField(max_length=256)
PartsNeeded = models.CharField(max_length=120, default='')
usercomments = models.CharField(max_length=400, default='', blank=True)
relpic = models.ImageField(upload_to='media/',blank=True)
relpictwo = models.ImageField(upload_to='media/',blank=True)
def __str__(self):
return self.name
def get_absolute_url(self):
return reverse("errorcodes:errorcodeview",kwargs={'name':self.name})
class RelatedParts(models.Model):
name = models.CharField(max_length=256)
related_error_code = models.ForeignKey(ErrorCodes, on_delete=models.PROTECT)
def __str__(self):
return self.name
You don't need to do this at all. You can follow the relationship in the template.
{% for part in object.relatedparts_set.all %}{{ part.name }}{% endfor %}
You don't need any code in the view to enable this.
could it be that "name=self.get_object()" should be "name=self.get_object().name" ?
You currently have:
context['relatedparts'] = RelatedParts.objects.filter(name=self.get_object())
but that is probably producing an empty queryset.
Related
I have a following models.py for my Django blog, I made a following views.py to pass the value of the slug for my URL parameter.
However I am struggling to create a model in views to get other data(person & description) from Category class.
I have tried some patterns by myself but can not pass them to HTML. (always Error or not showing)
Can you please give me some idea of how to solve this.
models.py
class Category(models.Model):
person = models.CharField(max_length=20)
description = models.TextField()
slug = models.SlugField()
def __str__(self):
return self.person
views.py
def blog_category(request, category):
posts = Post.objects.filter(categories__slug__contains=category).order_by("-created_on").distinct()
context = {"category": category, "posts": posts}
return render(request, "blog_category.html", context)
HTML(Localhost:8000/slug)
{{ person }}
{{ description }}
this is full code of my models.py
class Category(models.Model):
person = models.CharField(max_length=20)
description = models.TextField()
slug = models.SlugField()
def __str__(self):
return self.person
class Recommender(models.Model):
recommender_name = models.CharField(max_length=20)
slug = models.SlugField()
def __str__(self):
return self.recommender_name
class Post(models.Model):
book_title = models.CharField(max_length=255)
author = models.CharField(max_length=255)
book_link = models.CharField(max_length=255)
recommenders = models.ForeignKey("Recommender", on_delete=models.CASCADE,)
source = models.TextField()
source_link = models.CharField(max_length=255)
created_on = models.DateTimeField(auto_now_add=True)
last_modified = models.DateTimeField(auto_now=True)
categories = models.ManyToManyField("Category", related_name="posts")
slug = models.SlugField()
def __str__(self):
return self.book_title
posts = Post.objects.filter(categories__slug__contains=category).order_by("-created_on").distinct()
Is going to return a queryset. It can have more than one instance of the model class (since you are using filter). In your context you are sending this queryset as posts to your templates.
So in your HTML you can use something like this. You need to use a for loop since there can be more than one item in posts.
{% for post in posts %}
{% for category in post.categories.all %}
{{ category.person }}
{{ category.description }}
{% endfor %}
{% endfor %}
I would look at this example.
Namely, if you render the template like it is shown in the example, you should be able to do
{{ category.person }} {{ category.description }}
am working on a Django project where showing the details of post and amount
here is my models.py of post
class Loader_post(models.Model):
user = models.ForeignKey(User, on_delete=models.CASCADE ,related_name="Loader")
pick_up_station = models.CharField(max_length=150)
destination_station = models.CharField(max_length=150)
sender_name = models.CharField(max_length=150)
phone_number = PhoneNumberField(null=False, blank=False, unique=True)
receiver_name = models.CharField(max_length=150)
def __str__(self):
return self.user.username
def get_absolute_url(self):
return reverse("Loader:my_job", kwargs={"pk": self.pk})
this is my second models which I inherit Loader post
class price(models.Model):
my_post = models.ForeignKey(Loader_post, related_name='prices',on_delete=models.CASCADE,
null=True, default='')
user = models.ForeignKey(get_user_model(), on_delete=models.CASCADE, null=True, default='')
driver_price = models.CharField(max_length=150, null=True)
driver_name = models.CharField(max_length=150, null=True)
approved_price = models.BooleanField(default=False)
status = models.BooleanField(default=False)
def get_absolute_url(self):
return reverse("Driver:Driverview")
def __str__(self):
return self.driver_price
this is the view.py of both list and details view
class offer_view(ListView, SelectRelatedMixin):
context_object_name = 'offern'
model = Loader_post
template_name = "offer.html"
def get_queryset(self):
qs = Loader_post.objects.filter(user=self.request.user)
return qs
class offer_view_detail(DetailView):
context_object_name = 'offernew'
model = Loader_post
template_name = "offer_detail.html"
here is my HTML page of list view ...when someone clicks on it it shows the detail of next post
offer.html
{% for my in offern %}
{{my.sender_name}} {% endfor %}
and when someone clicks on its route to the detail page .. but it shows template doesn't exist
this is my detail page ie. offer_details.hml
<p>{{offernew.sender_name}}</p>
<p>{{offernew.receiver_name}}</p>
{% for x in offernew.prices.all %}
<p>
<p>{{x.driver_name}}</p>
</p>
and this is urls.py
path('offerdetail/<int:pk>', views.offer_view_detail.as_view(),name="offerdetail"),
path('offer/', views.offer_view.as_view(), name="offer"),
Following on from comments,
In you ListView,
{{my.sender_name}}
here, the url specified is not defined in your urls.py, that's why it was showing no template doesn't exist, changing to this would solve this.
{{my.sender_name}}
Now, To show prices model in your DetailView, i would do something like this.
class offer_view_detail(DetailView):
context_object_name='offernew'
model = Loader_post
template_name = "offer_detail.html"
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context['price_model'] = self.object.prices.all()
return context
and In your Template
<p>{{offernew.sender_name}}</p>
<p>{{offernew.receiver_name}}</p>
{% for x in offernew.price_model %}
<p>{{x.driver_name}}</p>
{% endfor %}
Django Docs for DetailView
I'm new in django.I want to retrieve all the records from related models and display the dynamic data in templates. I tried by using raw sql also but i could not display dynamic data templates.
models.py:
class NewRegistration(models.Model):
houseowner_name_en = models.CharField(max_length=30)
ward_no = models.ForeignKey(system_settings.models.Wardno)
contactno = models.CharField(max_length=30)
construction_type = models.ForeignKey(system_settings.models.ConstructionType)
taxpayer_id = models.CharField(max_length=30, blank=True, null=True)
cen = models.IntegerField()
is_forwarded = models.BooleanField(default=False)
class Application(models.Model):
registration_date = models.CharField(max_length=15)
building_use = models.ForeignKey(to=system_settings.models.BuildingUse)
building_category = models.CharField(max_length=30)
building_structure_category = models.ForeignKey(to=system_settings.models.BuildingStructureCategory)
building_storey = models.IntegerField(blank=True, null=True, default=0)
reg = models.ForeignKey(NewRegistration)
class Landowner(models.Model):
landowner_type = models.CharField(max_length=30)
lo_salutation = models.CharField(max_length=30)
lo_name_np = models.CharField(max_length=30)
lo_citizenship_issue_date = models.CharField(max_length=30)
reg = models.ForeignKey(NewRegistration)
views.py:
def export(request):
all_objects = NewRegistrationModel.objects.all()
# houseowner= all_objects.houseownerinfo_set.all()
app_all=Application.objects.all()
landinfo=Landinfo.objects.all()
return render(request, 'exports.html', {'all_objects': all_objects})
I did it like this.
views.py
def export(request):
all_objects = NewRegistration.objects.all()
return render(request, 'exports.html', {'all_objects': all_objects})
exports.html
# in template when displaying
{% for registration in all_objects %}
{{ registration.fiscalyear }}
{% for owner in registration.landowner_set.all %}
{{owner.landowner_type}}
{{owner.lo_wardno}}
{% endfor %}
{% endfor %}
you can use generic.ListView in your views.py file like that:
class Export(generic.ListView):
model = NewRegistration
template_name = "your_template_name.html"
def get_queryset(self):
return NewRegistration.objects.all()
def get_context_data(self, **kwargs):
context = super(Export, self).get_context_data(**kwargs)
context['app_all'] = Application.objects.all()
context['landinfo'] = Landingo.objects.all()
return context
you can accees the datas in your template like that {{ app_all }} or {{ landinfo }}.
I am trying to understand a basic example of adding both categories and detail slugs from 2 related classes.
The /categories URL works, but I can't make /categories/detail work. I get the following error:
Reverse for 'categorydetail' with arguments '('onedetailfromcategory',)' not found. 1 pattern(s) tried: ['(?P<cat_slug>[^/]+)/(?P<det_slug>[^/]+)$']
Here are my files:
#Models:
class Categories(models.Model):
name = models.CharField(max_length=50,unique=True)
cat_slug = models.SlugField(max_length=100,unique=True)
def __str__(self):
return self.name
class Details(models.Model):
title = models.CharField(max_length=100)
det_slug= models.SlugField(max_length=100,unique=True)
categorie = models.ForeignKey('Categories', on_delete=models.CASCADE, related_name="Categories")
def __str__(self):
return self.title
#Views:
class ListCategorie(DetailView):
model = Categories
slug_field = 'cat_slug'
context_object_name = "listcategories"
template_name = "show/categories.html"
class DetailCategorie(DetailView):
model = Details
slug_field = 'det_slug'
context_object_name = "categorydetail"
template_name = "show/detail.html"
#Urls:
path('<cat_slug>', views.ListCategorie.as_view(), name='listcategories'),
path('<cat_slug>/<det_slug>', views.DetailCategorie.as_view(), name='categorydetail'),
#Categories.html
{% for x in listcategories.Categories.all %}
<p> {{x.title}} </p>
<li>URL</li>
{% endfor %}
Your URL pattern is
path('<cat_slug>/<det_slug>', views.DetailCategorie.as_view(), name='categorydetail'),
Therefore you need to provide cat_slug and det_slug when reversing the URL:
{% url 'categorydetail' x.categorie.cat_slug x.det_slug %}
How can I display country, and city of an UserType1 object in template?
class UserType1(models.Model):
user=models.OneToOneField(User,parent_link=True,primary_key=True)
country = models.CharField(max_length=50)
city = models.CharField(max_length=50)
def __str__(self):
return str(self.user)
def get_country(self):
return self.country
def get_city(self):
return self.city
I have the below in views.py
def profile(request,userid):
basic_info = User.objects.get(pk=int(userid))
profile = UserType1.objects.filter(user=int(userid))
template_name = 'users/profile.html'
return render(request, template_name, {'userid':userid,'basic_info':basic_info, 'profile':profile})
and the following in template
{% if profile %}
{{ profile.get_city }}
{{ profile.city }}
{% endif %}
Neither worked. Thanks!
It looks like you are accessing properties on a queryset, rather than a model instance, as you haven't called get on UserType1.
Try:
profile = UserType1.objects.get(user=int(userid))
As an aside though, a small change would simplify your code a little:
user = models.OneToOneField(User, parent_link=True, primary_key=True, related_name='profile')
...
basic_info = User.objects.get(pk=int(userid))
profile = basic_info.profile