I made some progress on the error.
It's a view error. It's thrown by PetDetailView (which isn't even being
called with this url call or this template), and it can't find the context
object name that I defined as pet, which is stupid, because I defined it,
it's not a memory lookup.
QED Django is bad.
Mike
On Sunday, April 30, 2023 at 1:43:02 PM UTC-7 Michael Starr wrote:
> Hi Alberta. Thank you for the wonderful resource. I like concise
> information displays.
>
> Can you explain, by any chance, when a FormView and when a CreateView are
> used? The tutorials also say use CreateView, but I went for what was more
> logical to me--and it didn't work. But that may not have been the reason it
> didn't work. The docstring for the CreateView is a little ambiguous. To put
> it here, " View for creating a new object, with a response rendered by a
> template." What do they mean by new object? Whereas for FormView, it is
> clear: " A view for displaying a form and rendering a template response."
> This seems more appropriate.
>
> The {{ form }} is polish on the nail. I need my URL to be found first.
>
> But thank you for the tangential improvements.
>
> Michael
>
> On Sunday, April 30, 2023 at 12:27:00 AM UTC-7 ALBERT ASHABA AHEEBWA wrote:
>
>> Hi there,
>> Yes you need to add {{form}} to your html. I didn't see your models.py
>> file, but let's assume that's okay too.
>>
>> If you are going to use cbv(class based views), The upload view should
>> inherit from the CreateView. Try this amazing resource to learn more,
>>
>> https://ccbv.co.uk/
>>
>> And also don't forget to add the form attr enctype='multipart/form-data'
>> since it's a file upload field.
>>
>>
>>
>> Best Regards,
>>
>> Albert Ashaba Aheebwa
>> +256 781 435857 <+256%20781%20435857>
>>
>> On Sun, 30 Apr 2023, 05:20 Michael Starr, <michaelst...@gmail.com> wrote:
>>
>>> To contribute to my own answer, but not to answer the question:
>>> I forgot that Django can automatically render HTML forms using the
>>> tagging language.
>>>
>>> From the Django Docs
>>> https://docs.djangoproject.com/en/4.1/topics/forms/()
>>> *The template¶
>>> <https://docs.djangoproject.com/en/4.1/topics/forms/#the-template>*
>>>
>>> *We don’t need to do much in our name.html template:*
>>> *<form action="/your-name/" method="post"> {% csrf_token %} {{ form }}
>>> <input type="submit" value="Submit"> </form> *
>>>
>>> *All the form’s fields and their attributes will be unpacked into HTML
>>> markup from that {{ form }} by Django’s template language.*
>>> I will use this to update my template context. But I don't think this is
>>> the cause of the url routing error.
>>> Michael
>>> On Saturday, April 29, 2023 at 6:27:33 PM UTC-7 Michael Starr wrote:
>>>
>>>> This isn't the exact name of the error; I'm sure you all have
>>>> encountered the bad URL error before. But, it tells me it can't find the
>>>> pet matching the query (I'm making a pet website), and it checked the urls
>>>> in the order listed below. I mean, you know, in the order in the urls.py
>>>> file.
>>>>
>>>> Another url works from the project urls.py file, but this url is in the
>>>> app urls.py file. But it does check the imported urls.
>>>>
>>>> This url should be routing to a form template which is connected to a
>>>> form view to update a photo object in my models.
>>>>
>>>> I'm not sure which files would be relevant to share. Here are the ones
>>>> I'm guessing may help:
>>>>
>>>> project urls.py
>>>> from django.contrib import admin
>>>> from django.urls import path, include
>>>> from . import views
>>>> from django.conf.urls.static import static
>>>> from django.conf import settings
>>>>
>>>> urlpatterns = [
>>>> path('admin/', admin.site.urls),
>>>> path('home/', views.HomeView.as_view(), name='home_view'),
>>>> path('', include('pet_profile.urls')),
>>>> ]
>>>>
>>>> app urls.py
>>>> from django.contrib import admin
>>>> from django.urls import path
>>>> from pet_profile import views
>>>>
>>>> urlpatterns = [
>>>> path("pet/<slug:slug>/", views.PetDetailView.as_view(), name =
>>>> "pet_profile"),
>>>> path("owner/<slug:slug>/", views.PetOwnerDetailView.as_view(),
>>>> name = "owner_profile"),
>>>> path("pet/photoupload/", views.PetPhotoUploadView.as_view(), name =
>>>> "photo_upload"),
>>>> ]
>>>> url in question is the bottom one (photo_upload)
>>>>
>>>> template (photo_upload.html)
>>>> <!DOCTYPE html>
>>>> <html>
>>>> <head>
>>>>
>>>> </head>
>>>> <body>
>>>> <label>Upload a photo of your pet: <input type="file" /></label
>>>> >
>>>> </body>
>>>> </html>
>>>>
>>>> app views
>>>> from django.shortcuts import render
>>>> from django.views.generic import (ListView,
>>>> DetailView, FormView)
>>>> from pet_profile.models import PetOwner, Pet, PetPhoto, PetStory
>>>> from pet_profile.forms import PhotoUploadForm
>>>>
>>>> class PetOwnerListView(ListView):
>>>> model = PetOwner
>>>> context_object_name = "owner_list"
>>>> template_name = "home.html"
>>>>
>>>>
>>>> # def all_pet_photos(request):
>>>> # pets = Pet.objects.all()
>>>> # pet_data = {}
>>>> # for pet in pets:
>>>> # pet_data[pet] = PetPhoto.objects.filter(pets=pet)
>>>> # context = {'pet_data': pet_data}
>>>> # return render(request, 'pet_owner_profile.html', context)
>>>>
>>>> class PetOwnerDetailView(DetailView):
>>>> model = PetOwner
>>>> context_object_name = "owner"
>>>> template_name = "pet_owner_profile.html"
>>>> def get_context_data(self, *args, **kwargs):
>>>> context = super().get_context_data(**kwargs)
>>>> pets = Pet.objects.all()
>>>> pet_data = {}
>>>> for pet in pets:
>>>> pet_data[pet] = PetPhoto.objects.filter(pets=pet)
>>>> context['pet_data'] = pet_data
>>>> return context
>>>>
>>>> class PetListView(ListView):
>>>> model = Pet
>>>> context_object_name = "pet_list"
>>>>
>>>> class PetDetailView(DetailView):
>>>> model = Pet
>>>> context_object_name = "pet"
>>>>
>>>> class PetPhotoUploadView(FormView):
>>>> template_name = "photo_upload.html"
>>>> form_class = PhotoUploadForm
>>>>
>>>> class PetPhotoListView(ListView):
>>>> model = PetPhoto
>>>> context_object_name = "pet_photo_list"
>>>>
>>>> class PetPhotoDetailView(DetailView):
>>>> model = PetPhoto
>>>> context_object_name = "pet_photo"
>>>>
>>>> class PetStoryListView(ListView):
>>>> model = PetStory
>>>> context_object_name = "pet_story_list"
>>>>
>>>> class PetStoryDetailView(DetailView):
>>>> model = PetStory
>>>> context_object_name = "pet_story"
>>>>
>>>> view in question is PetPhotoUploadView
>>>>
>>>> Thanks in advance.
>>>> Michael
>>>>
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