Subclass this class and override :meth:`dispatch_request` to create a generic class-based view. Call :meth:`as_view` to create a view function that creates an instance of the class with the given arguments and calls its ``dispatch_request`` method with any URL variables. See :doc:`views` for a detailed guide. .. code-block:: python class Hello(View): init_every_request = False def dispatch_request(self, name): return f"Hello, {name}!" app.add_url_rule( "/hello/<name>", view_func=Hello.as_view("hello") ) Set :attr:`methods` on the class to change what methods the view accepts. Set :attr:`decorators` on the class to apply a list of decorators to the generated view function. Decorators applied to the class itself will not be applied to the generated view function! Set :attr:`init_every_request` to ``False`` for efficiency, unless you need to store request-global data on ``self``.
| Class Method | as |
Convert the class into a view function that can be registered for a route. |
| Method | dispatch |
The actual view function behavior. Subclasses must override this and return a valid response. Any variables from the URL rule are passed as keyword arguments. |
| Class Variable | decorators |
Undocumented |
| Class Variable | init |
Undocumented |
| Class Variable | methods |
Undocumented |
| Class Variable | provide |
Undocumented |
def as_view(cls, name:
str, *class_args: t.Any, **class_kwargs: t.Any) -> ft.RouteCallable:
(source)
¶
Convert the class into a view function that can be registered for a route. By default, the generated view will create a new instance of the view class for every request and call its :meth:`dispatch_request` method. If the view class sets :attr:`init_every_request` to ``False``, the same instance will be used for every request. Except for ``name``, all other arguments passed to this method are forwarded to the view class ``__init__`` method. .. versionchanged:: 2.2 Added the ``init_every_request`` class attribute.
flask.views.MethodViewThe actual view function behavior. Subclasses must override this and return a valid response. Any variables from the URL rule are passed as keyword arguments.