def display_graph(request):
'''
' Use JSON data to retrieve the appropriate datastream for rendering.
'''
user = check_access(request)
if isinstance(user, HttpResponse):
return user.content
json_data = json.loads(request.GET['json_data'])
try:
stream = DataStream.objects.get(id = int(json_data['stream']))
if not stream.can_view(user):
raise Http404("Sorry, but you do not have permission to view this graph.")
except ObjectDoesNotExist:
raise Http404()
reductions = reductFunc.keys()
t_graph = loader.get_template('graph.html')
c_graph = Context({
'id': stream.id,
'reduction': stream.reduction_type,
'reductions': reductions
})
return HttpResponse(t_graph.render(c_graph), mimetype="text/html")
def graphsIndex(request):
graphs = []
t_graph = loader.get_template('graph.html')
reductions = reductFunc.keys()
tmpDefaultGraphs = []
for graphId in DEFAULT_GRAPHS:
try:
stream = DataStream.objects.get(id=graphId)
tmpDefaultGraphs.append(graphId)
except DataStream.DoesNotExist:
print "Invalid stream id %s given for default!" % str(graphId)
continue
c_graph = Context({
'id': graphId
,'reduction': stream.reduction_type
,'reductions': reductions
})
graphs.append(t_graph.render(c_graph))
t = loader.get_template('graphs.html')
c = RequestContext(request, {
'graphs': graphs
,'defaultGraphs': tmpDefaultGraphs
})
return HttpResponse(t.render(c))
def display_simple_graph(request):
json_data = json.loads(request.GET['json_data'])
try:
stream = DataStream.objects.get(id = int(json_data['datastream_id']))
except ObjectDoesNotExist:
raise Http404()
perm = True
if not stream.is_public:
token = json_data['token']
try:
key = Key.objects.get(key = token)
if not key.isCurrent() or key not in stream.can_read.all():
perm = False
except Key.DoesNotExist:
perm = False
reductions = reductFunc.keys()
t_graph = loader.get_template('graph.html')
c_graph = Context({
'id': stream.id,
'reduction': stream.reduction_type,
'reductions': reductions,
'permission': perm
})
r_graph = t_graph.render(c_graph)
resp = HttpResponse(json.dumps({'graph': r_graph, "perm": perm}), mimetype="application/json")
resp['Access-Control-Allow-Origin'] = '*'
return resp
def saved_view(request, token):
'''
' This view will render the main page for sharing views, with the divs
' for widgets. The widgets will be loaded with ajax after page load.
'
' TODO: When other kinds of widgets are added, add them to the page also.
'''
# validate the token, consuming a use if applicable
key = Key.objects.validate(token)
if not isinstance(key, Key):
raise Http404(key)
# Load the instance, if there is one.
view = SavedView.objects.get(key = key)
reductions = reductFunc.keys()
graphs = []
t_graph = loader.get_template('graph.html')
for w in view.widget.all():
c_graph = Context({
'id': w.saveddsgraph.datastream.id,
'reductions': reductions,
'widget_id': w.id
})
graphs.append(t_graph.render(c_graph))
t = loader.get_template('content_container.html')
c = RequestContext(request, {
'widgets': graphs,
'token': token,
})
return HttpResponse(t.render(c))
