def _createSessionObject(self, request):
"""
Create Session object, returning SessionFormOut.
"""
# preload necessary data items
user_id = get_current_user_id()
# load conference
conf = ndb.Key(urlsafe=request.websafeConferenceKey)
if conf.kind() != "Conference":
raise endpoints.BadRequestException(
"Conference key expected")
# check if the conference has the right owner
if conf.get().organizerUserId != user_id:
raise endpoints.BadRequestException(
"Only the conference owner can add sessions")
if not request.name:
raise endpoints.BadRequestException(
"Session 'name' field required")
# copy SessionFormIn/ProtoRPC Message into dict
data = {field.name: getattr(request, field.name)
for field in request.all_fields()}
# The speaker field will be dealt with specially
del data['speaker_key']
# delete websafeConferenceKey
del data['websafeConferenceKey']
# we have to adjust the typeOfSession
if data['typeOfSession']:
data['typeOfSession'] = (
str(getattr(request, 'typeOfSession')))
# add default values for those missing
# (both data model & outbound Message)
for df in DEFAULTS_SESS:
if data[df] in (None, []):
data[df] = DEFAULTS_SESS[df]
setattr(request, df, DEFAULTS_SESS[df])
# add speakers
speaker_keys = []
for speakerform in getattr(request, 'speaker_key'):
speaker_key = ndb.Key(urlsafe=speakerform)
if speaker_key.kind() != "Speaker":
raise endpoints.BadRequestException(
"Speaker key expected")
# we try to get the data - is the speaker existing?
speaker = speaker_key.get()
if speaker is None:
raise endpoints.BadRequestException("Speaker not found")
speaker_keys.append(speaker_key)
data['speaker'] = speaker_keys
# convert dates from strings to Date objects,
# times from strings to Time objects
if data['date']:
data['date'] = datetime.strptime(data['date'][:10],
"%Y-%m-%d").date()
if data['startTime']:
data['startTime'] = datetime.strptime(data['startTime'][:5],
"%H:%M").time()
# set session parent to conference
data['parent'] = conf
# create Session, search for featured speaker in a task
session = Session(**data).put()
taskqueue.add(
params=
{
'sessionId': str(session.id()),
'websafeConferenceKey': session.parent().urlsafe()
},
url='/tasks/search_featured_speakers'
)
return self._copySessionToForm(session.get())
