Django shortcut functionsLink to this heading#

Wymagane argumentyLink to this heading#

request

Obiekt żądania użyty do wygenerowania tej odpowiedzi

template_name

The full name of a template to use or sequence of template names. If a sequence is given, the first template that exists will be used. See the template loading documentation for more information on how templates are found.

Optional argumentsLink to this heading#

context

A dictionary of values to add to the template context. By default, this is an empty dictionary. If a value in the dictionary is callable, the view will call it just before rendering the template.

content_type

The MIME type to use for the resulting document. Defaults to 'text/html'.

status

The status code for the response. Defaults to 200.

using

The NAME of a template engine to use for loading the template.

PrzykładLink to this heading#

The following example renders the template myapp/index.html with the MIME type application/xhtml+xml:

from django.shortcuts import render


def my_view(request):
    # View code here...
    return render(
        request,
        "myapp/index.html",
        {
            "foo": "bar",
        },
        content_type="application/xhtml+xml",
    )

This example is equivalent to:

from django.http import HttpResponse
from django.template import loader


def my_view(request):
    # View code here...
    t = loader.get_template("myapp/index.html")
    c = {"foo": "bar"}
    return HttpResponse(t.render(c, request), content_type="application/xhtml+xml")

PrzykładyLink to this heading#

You can use the redirect() function in a number of ways.

1. By passing some object; that object’s get_absolute_url() method will be called to figure out the redirect URL:

   Code

   from django.shortcuts import redirect
   
   
   def my_view(request):
       ...
       obj = MyModel.objects.get(...)
       return redirect(obj)
   

2. By passing the name of a view and optionally some positional or keyword arguments; the URL will be reverse resolved using the reverse() method:

   Code

   def my_view(request):
       ...
       return redirect("some-view-name", foo="bar")
   

3. By passing a hardcoded URL to redirect to:

   Code

   def my_view(request):
       ...
       return redirect("/some/url/")
   

   This also works with full URLs:

   Code

   def my_view(request):
       ...
       return redirect("https://example.com/")
   

By default, redirect() returns a temporary redirect. All of the above forms accept a permanent argument; if set to True a permanent redirect will be returned:

def my_view(request):
    ...
    obj = MyModel.objects.get(...)
    return redirect(obj, permanent=True)

ArgumentyLink to this heading#

klass

A Model class, a Manager, or a QuerySet instance from which to get the object.

*args

Q objects.

**kwargs

Lookup parameters, which should be in the format accepted by get() and filter().

PrzykładLink to this heading#

The following example gets the object with the primary key of 1 from MyModel:

from django.shortcuts import get_object_or_404


def my_view(request):
    obj = get_object_or_404(MyModel, pk=1)

This example is equivalent to:

from django.http import Http404


def my_view(request):
    try:
        obj = MyModel.objects.get(pk=1)
    except MyModel.DoesNotExist:
        raise Http404("No MyModel matches the given query.")

The most common use case is to pass a Model, as shown above. However, you can also pass a QuerySet instance:

queryset = Book.objects.filter(title__startswith="M")
get_object_or_404(queryset, pk=1)

The above example is a bit contrived since it’s equivalent to doing:

get_object_or_404(Book, title__startswith="M", pk=1)

but it can be useful if you are passed the queryset variable from somewhere else.

Finally, you can also use a Manager. This is useful for example if you have a custom manager:

get_object_or_404(Book.dahl_objects, title="Matilda")

You can also use related managers:

author = Author.objects.get(name="Roald Dahl")
get_object_or_404(author.book_set, title="Matilda")

Note: As with get(), a MultipleObjectsReturned exception will be raised if more than one object is found.

ArgumentyLink to this heading#

klass

A Model, Manager or QuerySet instance from which to get the list.

*args

Q objects.

**kwargs

Lookup parameters, which should be in the format accepted by get() and filter().

PrzykładLink to this heading#

The following example gets all published objects from MyModel:

from django.shortcuts import get_list_or_404


def my_view(request):
    my_objects = get_list_or_404(MyModel, published=True)

This example is equivalent to:

from django.http import Http404


def my_view(request):
    my_objects = list(MyModel.objects.filter(published=True))
    if not my_objects:
        raise Http404("No MyModel matches the given query.")