What are the default entries in a context dictionary, context[], from a View?
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Michael Starr
Dec 22, 2022, 6:05:34 PM12/22/22
to Django users
I am starting to understand context dictionaries, and I figured out from some Googling that the get_context_dictionary method belongs in a View, the one that you want to provide entries for its corresponding template.
My question is somewhat academic: Why can't I just use the context dictionary plan/vanilla " ", and if I can, what are the default entries labeled? If not, I understand how to add entries to them no problem.
Code would be something like what is shown at this tutorial.
Thank you very much.
Mike
Michael Starr
Dec 22, 2022, 8:17:34 PM12/22/22
to Django users
I got an answer for ListView here but I don't know if that's the same for all views. Probably not would be my guess.
Mike
Michael Starr
Dec 22, 2022, 8:23:21 PM12/22/22
to Django users
Here is my code so far:
models
from django.db import models
from django.utils.text import slugify
class Pet(models.Model):
name = models.CharField(max_length=255)
age = models.IntegerField()
slug = models.SlugField(allow_unicode=True, max_length=100, unique=True, default="default_pet_slug")
def __str__(self):
return self.name
def save(self, *args, **kwargs):
self.slug = slugify(self.name)
super().save(*args, **kwargs)
def get_absolute_url(self):
return reverse("pet:pet_details", kwargs={"slug": self.slug})
from django.utils.text import slugify
class Pet(models.Model):
name = models.CharField(max_length=255)
age = models.IntegerField()
slug = models.SlugField(allow_unicode=True, max_length=100, unique=True, default="default_pet_slug")
def __str__(self):
return self.name
def save(self, *args, **kwargs):
self.slug = slugify(self.name)
super().save(*args, **kwargs)
def get_absolute_url(self):
return reverse("pet:pet_details", kwargs={"slug": self.slug})
views
from django.views.generic.detail import DetailView
from pet.models import Pet
class PetDetailView(DetailView):
model = Pet
template_name = "pet_profile.html"
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
pets = Pet.objects
for pet in pets:
context[pet.name] = pet
return context
from pet.models import Pet
class PetDetailView(DetailView):
model = Pet
template_name = "pet_profile.html"
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
pets = Pet.objects
for pet in pets:
context[pet.name] = pet
return context
home.html
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>Pet Memorial</title>
</head>
<body>
{% for pet in pets %}
<a href="{% url 'pet_details' slug=pet.slug %}">Pet Profile: {{ pet }}</a>
{% endfor %}
</body>
</html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>Pet Memorial</title>
</head>
<body>
{% for pet in pets %}
<a href="{% url 'pet_details' slug=pet.slug %}">Pet Profile: {{ pet }}</a>
{% endfor %}
</body>
</html>
I get no errors, but nothing shows up. I have verified that there is an entry in Pet ("Mocha").
Mike
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