def signals(request):
"""Generate a HttpResponse to register Python signals from the JS side
"""
import_signals()
interval = settings.WS4REDIS_EMULATION_INTERVAL
if isinstance(interval, int) and request.user.is_anonymous():
interval = 0
elif isinstance(interval, string_types):
interval = import_string(interval)
if callable(interval):
interval = interval(request)
return render_to_response('djangofloor/signals.html',
{'signals': REGISTERED_SIGNALS, 'use_ws4redis': settings.FLOOR_USE_WS4REDIS,
'WS4REDIS_EMULATION_INTERVAL': interval},
RequestContext(request), content_type=__get_js_mimetype())
def signal_call(request, signal):
""" Called by JS code when websockets are not available. Allow to call Python signals from JS.
Arguments are passed in the request body, serialized as JSON.
:param signal: name of the called signal
:type signal: :class:`str`
"""
import_signals()
if request.body:
kwargs = json.loads(request.body.decode('utf-8'), cls=get_signal_decoder())
else:
kwargs = {}
try:
result = df_call(signal, request, sharing=RETURN, from_client=True, kwargs=kwargs)
except InvalidRequest:
result = []
return JsonResponse(result, safe=False, encoder=get_signal_encoder())
