def get_persistent_graph(request, *args, **kwargs): ''' Wraps itself around get facebook graph But stores the graph in the session, allowing usage across multiple pageviews. Note that Facebook session's expire at some point, you can't store this for permanent usage Atleast not without asking for the offline_access permission ''' from open_facebook.api import OpenFacebook if not request: logger.info("GPG01 no request") raise (ValidationError, 'Request is required if you want to use persistent tokens') graph = None # some situations like an expired access token require us to refresh our # graph require_refresh = False code = request.REQUEST.get('code') logger.info("GPG02 code = %s" % code) if code: require_refresh = True local_graph = getattr(request, 'facebook', None) logger.info("GPG03 local_graph %s" % local_graph) if local_graph: # gets the graph from the local memory if available graph = local_graph if not graph: logger.info("GPG04 no graph") # search for the graph in the session cached_graph_dict = request.session.get('graph_dict') if cached_graph_dict: logger.info("GPG05 graph in session") graph = OpenFacebook() graph.__setstate__(cached_graph_dict) graph._me = None if not graph or require_refresh: # gets the new graph, note this might do token conversions (slow) logger.info("GPG06 getting graph") graph = get_facebook_graph(request, *args, **kwargs) # if it's valid replace the old cache if graph is not None and graph.access_token: logger.info("GPG07 put graph into session") request.session['graph_dict'] = graph.__getstate__() # add the current user id and cache the graph at the request level _add_current_user_id(graph, request.user) request.facebook = graph return graph
def get_persistent_graph(request, *args, **kwargs): ''' Wraps itself around get facebook graph But stores the graph in the session, allowing usage across multiple pageviews. Note that Facebook session's expire at some point, you can't store this for permanent usage Atleast not without asking for the offline_access permission ''' from open_facebook.api import OpenFacebook if not request: logger.info("GPG01 no request") raise(ValidationError, 'Request is required if you want to use persistent tokens') graph = None # some situations like an expired access token require us to refresh our # graph require_refresh = False code = request.REQUEST.get('code') logger.info("GPG02 code = %s" % code) if code: require_refresh = True local_graph = getattr(request, 'facebook', None) logger.info("GPG03 local_graph %s" % local_graph) if local_graph: # gets the graph from the local memory if available graph = local_graph if not graph: logger.info("GPG04 no graph") # search for the graph in the session cached_graph_dict = request.session.get('graph_dict') if cached_graph_dict: logger.info("GPG05 graph in session") graph = OpenFacebook() graph.__setstate__(cached_graph_dict) graph._me = None if not graph or require_refresh: # gets the new graph, note this might do token conversions (slow) logger.info("GPG06 getting graph") graph = get_facebook_graph(request, *args, **kwargs) # if it's valid replace the old cache if graph is not None and graph.access_token: logger.info("GPG07 put graph into session") request.session['graph_dict'] = graph.__getstate__() # add the current user id and cache the graph at the request level _add_current_user_id(graph, request.user) request.facebook = graph return graph