o ¹iªã@sbdZddlmZddlmZegd¢ƒZGdd„deƒZGdd„de ƒZ Gd d „d ee eƒƒZ d S) z¦ flask.views ~~~~~~~~~~~ This module provides class-based views inspired by the ones in Django. :copyright: 2010 Pallets :license: BSD-3-Clause é)Úwith_metaclass)Úrequest)ÚgetÚpostÚheadÚoptionsÚdeleteÚputÚtraceÚpatchc@s0eZdZdZdZdZdZdd„Zedd„ƒZ dS)ÚViewa©Alternative way to use view functions. A subclass has to implement :meth:`dispatch_request` which is called with the view arguments from the URL routing system. If :attr:`methods` is provided the methods do not have to be passed to the :meth:`~flask.Flask.add_url_rule` method explicitly:: class MyView(View): methods = ['GET'] def dispatch_request(self, name): return 'Hello %s!' % name app.add_url_rule('/hello/', view_func=MyView.as_view('myview')) When you want to decorate a pluggable view you will have to either do that when the view function is created (by wrapping the return value of :meth:`as_view`) or you can use the :attr:`decorators` attribute:: class SecretView(View): methods = ['GET'] decorators = [superuser_required] def dispatch_request(self): ... The decorators stored in the decorators list are applied one after another when the view function is created. Note that you can *not* use the class based decorators since those would decorate the view class and not the generated view function! N©cCstƒ‚)z­Subclasses have to override this method to implement the actual view function code. This method is called with all the arguments from the URL rule. )ÚNotImplementedError)Úselfr r úF/var/www/edux/Edux_v2/venv/lib/python3.10/site-packages/flask/views.pyÚdispatch_requestEszView.dispatch_requestcsh‡‡‡fdd„‰|jr|ˆ_|jˆ_|jD]}|ˆƒ‰q|ˆ_|ˆ_|jˆ_|jˆ_|jˆ_|jˆ_ˆS)a€Converts the class into an actual view function that can be used with the routing system. Internally this generates a function on the fly which will instantiate the :class:`View` on each request and call the :meth:`dispatch_request` method on it. The arguments passed to :meth:`as_view` are forwarded to the constructor of the class. cs ˆjˆiˆ¤Ž}|j|i|¤ŽS)N)Ú view_classr)ÚargsÚkwargsr©Ú class_argsÚ class_kwargsÚviewr rrWszView.as_view..view)Ú decoratorsÚ__name__Ú __module__rÚ__doc__ÚmethodsÚprovide_automatic_options)ÚclsÚnamerrÚ decoratorr rrÚas_viewLs   z View.as_view) rrÚ __qualname__rrrrrÚ classmethodr"r r r rr s  r cs eZdZdZ‡fdd„Z‡ZS)ÚMethodViewTypezYMetaclass for :class:`MethodView` that determines what methods the view defines. cs|tt|ƒ |||¡d|vr:tƒ}|D]}t|ddƒr!| |j¡qtD]}t||ƒr2|  |  ¡¡q$|r<||_dSdSdS)Nr) Úsuperr%Ú__init__ÚsetÚgetattrÚupdaterÚhttp_method_funcsÚhasattrÚaddÚupper)rr ÚbasesÚdrÚbaseÚkey©Ú __class__r rr'ts  € € ðzMethodViewType.__init__)rrr#rr'Ú __classcell__r r r3rr%osr%c@seZdZdZdd„ZdS)Ú MethodViewaA class-based view that dispatches request methods to the corresponding class methods. For example, if you implement a ``get`` method, it will be used to handle ``GET`` requests. :: class CounterAPI(MethodView): def get(self): return session.get('counter', 0) def post(self): session['counter'] = session.get('counter', 0) + 1 return 'OK' app.add_url_rule('/counter', view_func=CounterAPI.as_view('counter')) cOsTt|tj ¡dƒ}|durtjdkrt|ddƒ}|dus#Jdtjƒ‚||i|¤ŽS)NÚHEADrzUnimplemented method %r)r)rÚmethodÚlower)rrrÚmethr r rršs  zMethodView.dispatch_requestN)rrr#rrr r r rr6Šs r6N) rÚ_compatrÚglobalsrÚ frozensetr+Úobjectr Útyper%r6r r r rÚs ÿ[