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� ?I�Qc @ s� d Z d d l m Z d d l m Z e d d d d d d d d g � Z d e f d � � YZ d e f d � � YZ d e e e � f d � � YZ d S( s� flask.views ~~~~~~~~~~~ This module provides class-based views inspired by the ones in Django. :copyright: (c) 2011 by Armin Ronacher. :license: BSD, see LICENSE for more details. i ( t request( t with_metaclasst gett postt headt optionst deletet putt tracet patcht Viewc B s2 e Z d Z d Z g Z d � Z e d � � Z RS( s� 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/<name>', 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! c C s t � � d S( s� Subclasses have to override this method to implement the actual view function code. This method is called with all the arguments from the URL rule. N( t NotImplementedError( t self( ( s: /opt/imh-python/lib/python2.7/site-packages/flask/views.pyt dispatch_requestA s c s� � � � f d � � | j rV | � _ | j � _ x | j D] } | � � � q= Wn | � _ | � _ | j � _ | j � _ | j � _ � S( s� 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. c s" � j � � � } | j | | � S( N( t view_classR ( t argst kwargsR ( t class_argst class_kwargst view( s: /opt/imh-python/lib/python2.7/site-packages/flask/views.pyR R s ( t decoratorst __name__t __module__R t __doc__t methods( t clst nameR R t decorator( ( R R R s: /opt/imh-python/lib/python2.7/site-packages/flask/views.pyt as_viewH s N( R R R t NoneR R R t classmethodR ( ( ( s: /opt/imh-python/lib/python2.7/site-packages/flask/views.pyR s t MethodViewTypec B s e Z d � Z RS( c C s� t j | | | | � } d | k r� t | j p3 g � } x0 | D]( } | t k r@ | j | j � � q@ q@ W| r� t | � | _ q� n | S( NR ( t typet __new__t setR t http_method_funcst addt uppert sorted( R R t basest dt rvR t key( ( s: /opt/imh-python/lib/python2.7/site-packages/flask/views.pyR! k s ( R R R! ( ( ( s: /opt/imh-python/lib/python2.7/site-packages/flask/views.pyR i s t MethodViewc B s e Z d Z d � Z RS( s� Like a regular class-based view but that dispatches requests to particular methods. For instance if you implement a method called :meth:`get` it means you will response to ``'GET'`` requests and the :meth:`dispatch_request` implementation will automatically forward your request to that. Also :attr:`options` is set for you automatically:: 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')) c O sw t | t j j � d � } | d k rK t j d k rK t | d d � } n | d k sj t d t j � � | | | � S( Nt HEADR s Unimplemented method %r( t getattrR t methodt lowerR t AssertionError( R R R t meth( ( s: /opt/imh-python/lib/python2.7/site-packages/flask/views.pyR � s ( R R R R ( ( ( s: /opt/imh-python/lib/python2.7/site-packages/flask/views.pyR+ { s N( R t globalsR t _compatR t frozensetR# t objectR R R R+ ( ( ( s: /opt/imh-python/lib/python2.7/site-packages/flask/views.pyt <module> s V
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