def get_model(request):
'''
Returns Model object in JSON.
- This method varies slightly from the common object method in that
if we don't specify a model ID, we:
- return the current active model if it exists or...
- return the specification.
'''
ret = None
obj_id = obj_id_from_url(request)
gnome_sema = request.registry.settings['py_gnome_semaphore']
gnome_sema.acquire()
if not obj_id:
my_model = get_active_model(request.session)
if my_model:
ret = my_model.serialize()
else:
# - return a Model specification
ret = get_specifications(request, implemented_types)
else:
obj = get_session_object(obj_id, request.session)
if obj:
if ObjectImplementsOneOf(obj, implemented_types):
set_active_model(request.session, obj.id)
ret = obj.serialize()
else:
raise HTTPUnsupportedMediaType()
else:
raise HTTPNotFound()
gnome_sema.release()
return ret
def create_model(request):
'''
Creates a new model
'''
log_prefix = 'req({0}): create_object():'.format(id(request))
print '>>', log_prefix
try:
json_request = json.loads(request.body)
except:
json_request = None
if json_request and not JSONImplementsOneOf(json_request,
implemented_types):
raise HTTPNotImplemented()
gnome_sema = request.registry.settings['py_gnome_semaphore']
gnome_sema.acquire()
print ' ', log_prefix, 'semaphore acquired...'
try:
init_session_objects(request.session, force=True)
if json_request:
new_model = CreateObject(json_request,
get_session_objects(request.session))
else:
new_model = Model()
set_session_object(new_model, request.session)
set_session_object(new_model._map, request.session)
set_active_model(request.session, new_model.id)
finally:
gnome_sema.release()
print ' ', log_prefix, 'semaphore released...'
print '<<', log_prefix
return new_model.serialize()
def load_location_file(location_file, session):
if isdir(location_file):
obj = load(location_file)
RegisterObject(obj, session)
set_active_model(session, obj.id)
