Challenge: CRUD with Person

Note

The presented code for the task is part of the framework and cannot work separately, so errors will be received when you try to Run Code. Use the Submit Task button to solve this task.

Aufgabe

Swipe to start coding

You have already implemented Model class:

python
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class Dog(models.Model):
    name = models.CharField(max_length=30)
    age = models.IntegerField()
    weight = models.FloatField()

    object = models.Manager()

Write 5 view functions:

dog_list(request) should display the list of dogs on the HTML page like following:

html
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<h1>Dog {id}</h1>
<p>Name: {name}</p>
<p>Age: {age}</p>
<p>Weight: {weight}</p>

dog_get(request, pk) should display the information about the selected Dog by pk (id).
dog_create(request) should create the new Dog with the name "Unknown", age 0, and weight 1.1.
dog_update(request, pk) should update the Dog's name to "Updater", age += 1, and weight += 0.2.
dog_delete(request, pk) should delete the existing dog by id.

Connect views to URLs

URL	View
`dogs/`	`dog_list`
`dogs/id/`	`dog_get`
`dogs/id/update/`	`dog_update`
`dogs/id/delete/`	`dog_delete`
`dogs/create/`	`dog_create`

Lösung

from django.urls import path

from django.http import HttpResponse

from new_app.models import Dog

def dog_list(request):

dogs = Dog.objects.all()

html = ""

for dog in dogs:

html += f"<h1>Dog {dog.id}</h1>"

html += f"<p>Name: {dog.name}</p>"

html += f"<p>Age: {dog.age}</p>"

html += f"<p>Weight: {dog.weight}</p>"

return HttpResponse(html)

def dog_create(request):

new_dog = Dog()

new_dog.name = "Unknown"

new_dog.age = 0

new_dog.weight = 1.1

new_dog.save()

return HttpResponse("<h1>Complete!</h1>")

def dog_get(request, pk):

dog = Dog.objects.get(pk=pk)

html = f"<h1>Dog {dog.id}</h1>"

html += f"<p>Name: {dog.name}</p>"

html += f"<p>Age: {dog.age}</p>"

War alles klar?

Danke für Ihr Feedback!

Abschnitt 4. Kapitel 4

from django.urls import path

from django.http import HttpResponse

from new_app.models import Dog

def dog_list(request):

dogs = ___.___.___()

___ = ""

for dog in dogs:

html += f"<h1>Dog {___.id}</h1>"

html += f"<p>Name: {dog.___}</p>"

html += f"<p>Age: {dog.___}</p>"

html += f"<p>Weight: {dog.___}</p>"

return ___(___)

def dog_create(request):

___ = Dog()

new_dog.___ = "Unknown"

new_dog.age = 0

___.weight = ___

new_dog.___()

return HttpResponse("<h1>Complete!</h1>")

def dog_get(request, ___):

dog = Dog.objects.___(___=pk)

html = f"<h1>Dog {dog.id}</h1>"

html += f"<p>Name: {dog.name}</p>"

html += f"<p>Age: {dog.age}</p>"

html += f"<p>Weight: {dog.weight}</p>"

return HttpResponse(html)

def dog_update(request, pk):

dog = Dog.objects.___(pk=pk)

dog.___ = "Updater"

dog.age ___ 1

dog.weight ___ 0.2

dog.___()

return HttpResponse(f"<h1>Update Dog (id {dog.___})</h1>")

def dog_delete(request, pk):

dog = Dog.objects.get(pk=pk)

dog_id = dog.id

dog.___()

return HttpResponse(f"<h1>Delete Dog (id {___})</h1>")

urlpatterns = [

path("dogs/", ___, name="dog-list"),

path("dogs/___/", ___, name="dog-get"),

path("dogs/<int:pk>/___/", ___, name="dog-update"),

path("dogs/<int:pk>/___/", ___, name="dog-delete"),

path("dogs/___/", ___, name="dog-create"),

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