"city": "Default City",

"maxAttendees": 0,

"seatsAvailable": 0,

"topics": ["Default", "Topic"],

'EQ': '=',

'GT': '>',

'GTEQ': '>=',

'LT': '<',

'LTEQ': '<=',

'NE': '!='

'CITY': 'city',

'TOPIC': 'topics',

'MONTH': 'month',

'MAX_ATTENDEES': 'maxAttendees',

"""Conference API v0.1"""

def _getAuthUser(self):

""" Make sure user is logged in and return the user record """

user = endpoints.get_current_user()

if not user:

raise endpoints.UnauthorizedException('Authorization required')

return user

# - - - Conference objects - - - - - - - - - - - - - - - - -

def _copyConferenceToForm(self, conf, displayName):

"""Copy relevant fields from Conference to ConferenceForm."""

cf = ConferenceForm()

for field in cf.all_fields():

if hasattr(conf, field.name):

# convert Date to date string; just copy others

if field.name.endswith('Date'):

setattr(cf, field.name, str(getattr(conf, field.name)))

else:

setattr(cf, field.name, getattr(conf, field.name))

elif field.name == "websafeKey":

setattr(cf, field.name, conf.key.urlsafe())

if displayName:

setattr(cf, 'organizerDisplayName', displayName)

cf.check_initialized()

return cf

def _createConferenceObject(self, request):

"""Create or update Conference object, returning ConferenceForm/request."""

# preload necessary data items

user = self._getAuthUser()

user_id = getUserId(user)

if not request.name:

raise endpoints.BadRequestException("Conference 'name' field required")

# copy ConferenceForm/ProtoRPC Message into dict

data = {field.name: getattr(request, field.name) for field in request.all_fields()}

del data['websafeKey']

del data['organizerDisplayName']

# add default values for those missing (both data model & outbound Message)

for df in DEFAULTS:

if data[df] in (None, []):

data[df] = DEFAULTS[df]

setattr(request, df, DEFAULTS[df])

# convert dates from strings to Date objects; set month based on start_date

if data['startDate']:

data['startDate'] = datetime.strptime(data['startDate'][:10], "%Y-%m-%d").date()

data['month'] = data['startDate'].month

else:

data['month'] = 0

if data['endDate']:

data['endDate'] = datetime.strptime(data['endDate'][:10], "%Y-%m-%d").date()

# set seatsAvailable to be same as maxAttendees on creation

if data["maxAttendees"] > 0:

data["seatsAvailable"] = data["maxAttendees"]

# generate Profile Key based on user ID and Conference

# ID based on Profile key get Conference key from ID

p_key = ndb.Key(Profile, user_id)

c_id = Conference.allocate_ids(size=1, parent=p_key)[0]

c_key = ndb.Key(Conference, c_id, parent=p_key)

data['key'] = c_key

data['organizerUserId'] = request.organizerUserId = user_id

# create Conference, send email to organizer confirming

# creation of Conference & return (modified) ConferenceForm

Conference(**data).put()

taskqueue.add(params={'email': user.email(),

'conferenceInfo': repr(request)},

url='/tasks/send_confirmation_email'

)

return request

@ndb.transactional()

def _updateConferenceObject(self, request):

user = self._getAuthUser()

user_id = getUserId(user)

# copy ConferenceForm/ProtoRPC Message into dict

data = {field.name: getattr(request, field.name) for field in request.all_fields()}

# update existing conference

conf = ndb.Key(urlsafe=request.websafeConferenceKey).get()

# check that conference exists

if not conf:

raise endpoints.NotFoundException(

'No conference found with key: %s' % request.websafeConferenceKey)

# check that user is owner

if user_id != conf.organizerUserId:

raise endpoints.ForbiddenException(

'Only the owner can update the conference.')

# Not getting all the fields, so don't create a new object; just

# copy relevant fields from ConferenceForm to Conference object

for field in request.all_fields():

data = getattr(request, field.name)

# only copy fields where we get data

if data not in (None, []):

# special handling for dates (convert string to Date)

if field.name in ('startDate', 'endDate'):

data = datetime.strptime(data, "%Y-%m-%d").date()

if field.name == 'startDate':

conf.month = data.month

# write to Conference object

setattr(conf, field.name, data)

conf.put()

prof = ndb.Key(Profile, user_id).get()

return self._copyConferenceToForm(conf, getattr(prof, 'displayName'))

@endpoints.method(ConferenceForm, ConferenceForm, path='conference',

http_method='POST', name='createConference')

def createConference(self, request):

"""Create new conference."""

return self._createConferenceObject(request)

@endpoints.method(CONF_POST_REQUEST, ConferenceForm,

path='conference/{websafeConferenceKey}',

http_method='PUT', name='updateConference')

def updateConference(self, request):

"""Update conference w/provided fields & return w/updated info."""

return self._updateConferenceObject(request)

@endpoints.method(CONF_GET_REQUEST, ConferenceForm,

path='conference/{websafeConferenceKey}',

http_method='GET', name='getConference')

def getConference(self, request):

"""Return requested conference (by websafeConferenceKey)."""

# get Conference object from request; bail if not found

conf = ndb.Key(urlsafe=request.websafeConferenceKey).get()

if not conf:

raise endpoints.NotFoundException(

'No conference found with key: %s' % request.websafeConferenceKey)

prof = conf.key.parent().get()

# return ConferenceForm

return self._copyConferenceToForm(conf, getattr(prof, 'displayName'))

@endpoints.method(message_types.VoidMessage, ConferenceForms,

path='getConferencesCreated',

http_method='POST', name='getConferencesCreated')

def getConferencesCreated(self, request):

"""Return conferences created by user."""

# make sure user is authed

user = self._getAuthUser()

user_id = getUserId(user)

# create ancestor query for all key matches for this user

confs = Conference.query(ancestor=ndb.Key(Profile, user_id))

prof = ndb.Key(Profile, user_id).get()

# return set of ConferenceForm objects per Conference

return ConferenceForms(

items=[self._copyConferenceToForm(conf, getattr(prof, 'displayName')) for conf in confs]

)

def _getQuery(self, request):

"""Return formatted query from the submitted filters."""

q = Conference.query()

inequality_filter, filters = self._formatFilters(request.filters)

# If exists, sort on inequality filter first

if not inequality_filter:

q = q.order(Conference.name)

else:

q = q.order(ndb.GenericProperty(inequality_filter))

q = q.order(Conference.name)

for filtr in filters:

if filtr["field"] in ["month", "maxAttendees"]:

filtr["value"] = int(filtr["value"])

formatted_query = ndb.query.FilterNode(filtr["field"], filtr["operator"], filtr["value"])

q = q.filter(formatted_query)

return q

def _formatFilters(self, filters):

"""Parse, check validity and format user supplied filters."""

formatted_filters = []

inequality_field = None

for f in filters:

filtr = {field.name: getattr(f, field.name) for field in f.all_fields()}

try:

filtr["field"] = FIELDS[filtr["field"]]

filtr["operator"] = OPERATORS[filtr["operator"]]

except KeyError:

raise endpoints.BadRequestException("Filter contains invalid field or operator.")

# Every operation except "=" is an inequality

if filtr["operator"] != "=":

# check if inequality operation has been used in previous filters

# disallow the filter if inequality was performed on a different field before

# track the field on which the inequality operation is performed

if inequality_field and inequality_field != filtr["field"]:

raise endpoints.BadRequestException("Inequality filter is allowed on only one field.")

else:

inequality_field = filtr["field"]

formatted_filters.append(filtr)

return (inequality_field, formatted_filters)

@endpoints.method(ConferenceQueryForms, ConferenceForms,

path='queryConferences',

http_method='POST',

name='queryConferences')

def queryConferences(self, request):

"""Query for conferences."""

conferences = self._getQuery(request)

# need to fetch organiser displayName from profiles

# get all keys and use get_multi for speed

organisers = [(ndb.Key(Profile, conf.organizerUserId)) for conf in conferences]

profiles = ndb.get_multi(organisers)

# put display names in a dict for easier fetching

names = {}

for profile in profiles:

names[profile.key.id()] = profile.displayName

# return individual ConferenceForm object per Conference

return ConferenceForms(

items=[self._copyConferenceToForm(conf, names[conf.organizerUserId]) for conf in \

conferences]

)

# - - - Profile objects - - - - - - - - - - - - - - - - - - -

def _copyProfileToForm(self, prof):

"""Copy relevant fields from Profile to ProfileForm."""

# copy relevant fields from Profile to ProfileForm

pf = ProfileForm()

for field in pf.all_fields():

if hasattr(prof, field.name):

# convert t-shirt string to Enum; just copy others

if field.name == 'teeShirtSize':

setattr(pf, field.name, getattr(TeeShirtSize, getattr(prof, field.name)))

else:

setattr(pf, field.name, getattr(prof, field.name))

pf.check_initialized()

return pf

def _getProfileFromUser(self):

"""Return user Profile from datastore, creating new one if non-existent."""

# make sure user is authed

user = self._getAuthUser()

# get Profile from datastore

user_id = getUserId(user)

p_key = ndb.Key(Profile, user_id)

profile = p_key.get()

# create new Profile if not there

if not profile:

profile = Profile(

key = p_key,

displayName = user.nickname(),

mainEmail= user.email(),

teeShirtSize = str(TeeShirtSize.NOT_SPECIFIED),

)

profile.put()

return profile # return Profile

def _doProfile(self, save_request=None):

"""Get user Profile and return to user, possibly updating it first."""

# get user Profile

prof = self._getProfileFromUser()

# if saveProfile(), process user-modifyable fields

if save_request:

for field in ('displayName', 'teeShirtSize'):

if hasattr(save_request, field):

val = getattr(save_request, field)

if val:

setattr(prof, field, str(val))

#if field == 'teeShirtSize':

# setattr(prof, field, str(val).upper())

#else:

# setattr(prof, field, val)

prof.put()

# return ProfileForm

return self._copyProfileToForm(prof)

@endpoints.method(message_types.VoidMessage, ProfileForm,

path='profile', http_method='GET', name='getProfile')

def getProfile(self, request):

"""Return user profile."""

return self._doProfile()

@endpoints.method(ProfileMiniForm, ProfileForm,

path='profile', http_method='POST', name='saveProfile')

def saveProfile(self, request):

"""Update & return user profile."""

return self._doProfile(request)

# - - - Announcements - - - - - - - - - - - - - - - - - - - -

@staticmethod

def _cacheAnnouncement():

"""Create Announcement & assign to memcache; used by

memcache cron job & putAnnouncement().

"""

confs = Conference.query(ndb.AND(

Conference.seatsAvailable <= 5,

Conference.seatsAvailable > 0)

).fetch(projection=[Conference.name])

if confs:

# If there are almost sold out conferences,

# format announcement and set it in memcache

announcement = ANNOUNCEMENT_TPL % (

', '.join(conf.name for conf in confs))

memcache.set(MEMCACHE_ANNOUNCEMENTS_KEY, announcement)

else:

# If there are no sold out conferences,

# delete the memcache announcements entry

announcement = ""

memcache.delete(MEMCACHE_ANNOUNCEMENTS_KEY)

return announcement

@endpoints.method(message_types.VoidMessage, StringMessage,

path='conference/announcement/get',

http_method='GET', name='getAnnouncement')

def getAnnouncement(self, request):

"""Return Announcement from memcache."""

return StringMessage(data=memcache.get(MEMCACHE_ANNOUNCEMENTS_KEY) or "")

# - - - Registration - - - - - - - - - - - - - - - - - - - -

@ndb.transactional(xg=True)

def _conferenceRegistration(self, request, reg=True):

"""Register or unregister user for selected conference."""

retval = None

prof = self._getProfileFromUser() # get user Profile

# check if conf exists given websafeConfKey

# get conference; check that it exists

wsck = request.websafeConferenceKey

conf = ndb.Key(urlsafe=wsck).get()

if not conf:

raise endpoints.NotFoundException(

'No conference found with key: %s' % wsck)

# register

if reg:

# check if user already registered otherwise add

if wsck in prof.conferenceKeysToAttend:

raise ConflictException(

"You have already registered for this conference")

# check if seats avail

if conf.seatsAvailable <= 0:

raise ConflictException(

"There are no seats available.")

# register user, take away one seat

prof.conferenceKeysToAttend.append(wsck)

conf.seatsAvailable -= 1

retval = True

# unregister

else:

# check if user already registered

if wsck in prof.conferenceKeysToAttend:

# unregister user, add back one seat

prof.conferenceKeysToAttend.remove(wsck)

conf.seatsAvailable += 1

retval = True

else:

retval = False

# write things back to the datastore & return

prof.put()

conf.put()

return BooleanMessage(data=retval)

@endpoints.method(message_types.VoidMessage, ConferenceForms,

path='conferences/attending',

http_method='GET', name='getConferencesToAttend')

def getConferencesToAttend(self, request):

"""Get list of conferences that user has registered for."""

prof = self._getProfileFromUser() # get user Profile

conf_keys = [ndb.Key(urlsafe=wsck) for wsck in prof.conferenceKeysToAttend]

conferences = ndb.get_multi(conf_keys)

# get organizers

organisers = [ndb.Key(Profile, conf.organizerUserId) for conf in conferences]

profiles = ndb.get_multi(organisers)

# put display names in a dict for easier fetching

names = {}

for profile in profiles:

names[profile.key.id()] = profile.displayName

# return set of ConferenceForm objects per Conference

return ConferenceForms(items=[self._copyConferenceToForm(conf, names[conf.organizerUserId])\

for conf in conferences]

)

@endpoints.method(CONF_GET_REQUEST, BooleanMessage,

path='conference/{websafeConferenceKey}',

http_method='POST', name='registerForConference')

def registerForConference(self, request):

"""Register user for selected conference."""

return self._conferenceRegistration(request)

@endpoints.method(CONF_GET_REQUEST, BooleanMessage,

path='conference/{websafeConferenceKey}',

http_method='DELETE', name='unregisterFromConference')

def unregisterFromConference(self, request):

"""Unregister user for selected conference."""

return self._conferenceRegistration(request, reg=False)

@endpoints.method(message_types.VoidMessage, ConferenceForms,

path='filterPlayground',

http_method='GET', name='filterPlayground')

def filterPlayground(self, request):

"""Filter Playground"""

q = Conference.query()

# field = "city"

# operator = "="

# value = "London"

# f = ndb.query.FilterNode(field, operator, value)

# q = q.filter(f)

q = q.filter(Conference.city=="London")

q = q.filter(Conference.topics=="Medical Innovations")

q = q.filter(Conference.month==6)

return ConferenceForms(

items=[self._copyConferenceToForm(conf, "") for conf in q]

)

# - - - Session object - - - - - - - - - - - - - - - - - - - -

def _copySessionToForm(self, sess):

"""Copy relevant fields from Session to SessionForm."""

sf = SessionForm()

for field in sf.all_fields():

if hasattr(sess, field.name):

# convert Date and Start Time to date string; just copy others

if field.name == "date" or field.name == "startTime":

setattr(sf, field.name, str(getattr(sess, field.name)))

else:

setattr(sf, field.name, getattr(sess, field.name))

elif field.name == "confWebsafeKey":

setattr(sf, field.name, sess.key.parent().urlsafe())

elif field.name == "websafeKey":

setattr(sf, field.name, sess.key.urlsafe())

sf.check_initialized()

return sf

def _createSessionObject(self, request):

"""Create Session object, returning SessionForm/request."""

user = self._getAuthUser()

user_id = getUserId(user)

if not request.name:

raise endpoints.BadRequestException("Session 'name' field required")

speaker = None;

#if not request.speaker:

# raise endpoints.BadRequestException("Session 'speaker' field required")

# copy SessionForm/ProtoRPC Message into dict

data = {field.name: getattr(request, field.name) for field in request.all_fields()}

# convert date from string to Date object;

if data['date']:

data['date'] = datetime.strptime(data['date'][:10], "%Y-%m-%d").date()

# convert startTime from string to Time object;

if data['startTime']:

data['startTime'] = datetime.strptime(data['startTime'][:5], "%H:%M").time()

if data['websafeSpeakerKey']:

try:

sp_key = ndb.Key(urlsafe=data['websafeSpeakerKey'])

except Exception, e:

raise endpoints.NotFoundException ("invalid websafeSpeakerKey")

speaker = sp_key.get()

if not speaker:

raise endpoints.BadRequestException("Cannot locate speaker")

# use the Conference Key to generate a ID for the Session

# create Session key with Conference as the parent

c_key = ndb.Key(urlsafe=data['confWebsafeKey'])

s_id = Session.allocate_ids(size=1, parent=c_key)[0]

s_key = ndb.Key(Session, s_id, parent=c_key)

# assign the Session key

data['key'] = s_key

del data['confWebsafeKey']

del data['websafeKey']

# create Session & create/update speaker if available

session = Session(**data)

session.put()

if speaker:

# append the Session that the Speaker will speak

speaker.sessionKeysToSpeak.append(s_key.urlsafe())

speaker.put()

taskqueue.add(params={'conference_key': c_key.urlsafe(),

'speaker_key': data['websafeSpeakerKey']},

url='/tasks/set_featured_speaker'

)

return self._copySessionToForm(session)

@endpoints.method(SessionForm, SessionForm, path='session',

http_method='POST', name='createSession')

def createSession(self, request):

"""Create new session."""

# make sure user is authed

user = self._getAuthUser()

user_id = getUserId(user)

p_key = ndb.Key(Profile, user_id)

conf = ndb.Key(urlsafe=request.confWebsafeKey).get()

if not conf:

raise endpoints.NotFoundException(

'No conference found with key: %s' % request.websafeConferenceKey)

# Logged in user can only create Sessions for Conferences they created

if conf.key.parent() != p_key:

raise endpoints.UnauthorizedException('Unauthorized Access')

return self._createSessionObject(request)

@endpoints.method(CONF_GET_REQUEST, SessionForms,

path='getConferenceSessions/{websafeConferenceKey}',

http_method='GET', name='getConferenceSessions')

def getConferenceSessions(self, request):

"""Return sessions for a conference."""

# make sure user is authed

user = self._getAuthUser()

c_key = ndb.Key(urlsafe=request.websafeConferenceKey)

# create ancestor query for all key matches for this conference

sessions = Session.query(ancestor=c_key)

# return set of SessionForm objects per session

return SessionForms(

items=[self._copySessionToForm(sess) for sess in sessions]

)

@endpoints.method(SESSION_TYPE_GET_REQUEST, SessionForms,

path='getConferenceSessionsByType',

http_method='GET', name='getConferenceSessionsByType')

def getConferenceSessionsByType(self, request):

"""Find specific type of sessions for a conference """

c_key = ndb.Key(urlsafe=request.websafeConferenceKey)

q = Session.query(ancestor=c_key). \

filter(Session.typeOfSession==request.typeOfSession)

return SessionForms(

items=[self._copySessionToForm(sess) for sess in q]

)

@endpoints.method(SESSION_SPEAKER_GET_REQUEST, SessionForms,

path='getSessionsBySpeaker',

http_method='GET', name='getSessionsBySpeaker')

def getSessionsBySpeaker(self, request):

"""Find all sessions by the speaker across all conferences"""

q = Session.query(Session.speaker==request.speaker)

return SessionForms(

items=[self._copySessionToForm(sess) for sess in q]

)

@endpoints.method(SESSION_DATE_GET_REQUEST, SessionForms,

path='getSessionsGreaterThanDate',

http_method='GET', name='getSessionsGreaterThanDate')

def getSessionsGreaterThanDate(self, request):

"""Find all sessions greater than or equal to specified date across all conferences"""

if request.date:

startDate = datetime.strptime(request.date[:10], "%Y-%m-%d").date()

q = Session.query(Session.date>=startDate).order(Session.date)

return SessionForms(

items=[self._copySessionToForm(sess) for sess in q]

)

@endpoints.method(message_types.VoidMessage, SessionForms,

path='wishlist/getSessionsNoWorkshopBefore7',

http_method='GET', name='getSessionsNoWorkshopBefore7')

def getSessionsNoWorkshopBefore7(self, request):

"""Return all sessions that are not workshops AND

before 7pm (19:00)"""

# create time object for 19:00 (7pm) and get all sessions

# before 19:00

startTime = datetime.strptime("19:00", "%H:%M").time()

q = Session.query(Session.startTime<=startTime)

# filter the results to exclude any workshops and return

# the rest

return SessionForms(

items=[self._copySessionToForm(sess) for sess in q if sess.typeOfSession != "Workshop"]

)

# - - Wishlist object - - - - - - - - - - - - - - - - - - - - -

def _copyWishlistToForm(self, wishList):

"""Copy relevant fields from Wishlist to WishlistForm."""

wf = WishlistForm()

for field in wf.all_fields():

if hasattr(wishList, field.name):

setattr(wf, field.name, getattr(wishList, field.name))

elif field.name == "websafeKey":

setattr(wf, field.name, wishList.key.urlsafe())

wf.check_initialized()

return wf

def _createWishlistObject(self, request):

"""Create Wishlist object, returning WishlistForm/request."""

# as usual make sure user is logged in

user = self._getAuthUser()

user_id = getUserId(user)

data = {field.name: getattr(request, field.name) for field in request.all_fields()}

sess = ndb.Key(urlsafe=request.websafeSessionKey).get()

p_key = ndb.Key(Profile, user_id)

q = Wishlist.query(ancestor=p_key). \

filter(Wishlist.websafeSessionKey==request.websafeSessionKey).get()

if q:

raise endpoints.BadRequestException('Session already in Wishlist')

data['sessionName'] = sess.name

data['userId'] = user_id

data['duration'] = sess.duration

# create Wishlist key with logged in user as the parent

w_id = Wishlist.allocate_ids(size=1, parent=p_key)[0]

w_key = ndb.Key(Wishlist, w_id, parent=p_key)

data['key'] = w_key

# create Wishlist entry

wishlist = Wishlist(**data)

wishlist.put()

return self._copyWishlistToForm(wishlist)

def _deleteWishlistObject (self, request):

""" Delete Wishlist entry """

# as usual make sure user is logged in

user = self._getAuthUser()

user_id = getUserId(user)

# Find the Wishlist Session record for the user

q = Wishlist.query(ancestor=ndb.Key(Profile, user_id)). \

filter(Wishlist.websafeSessionKey==request.websafeSessionKey). \

get()

# only if it is found should we delete it

if q:

q.key.delete()

return BooleanMessage(data=True)

@endpoints.method(WISHLIST_GET_REQUEST, WishlistForm, path='wishlist',

http_method='POST', name='addSessionToWishlist')

def addSessionToWishlist(self, request):

"""Create new wishlist entry."""

user = self._getAuthUser()

user_id = getUserId(user)

p_key = ndb.Key(Profile, user_id)

# make sure a Session key is supplied

if not request.websafeSessionKey:

raise endpoints.BadRequestException("websafeSessionKey field required")

# make sure we can find the Session key. If it is bogus then

# tell the user it does not exist

try:

s_key = ndb.Key(urlsafe=request.websafeSessionKey)

except Exception, e:

raise endpoints.NotFoundException ("invalid websafeSessionKey")

sess = s_key.get()

# make sure we can get the session and if so, then we can do the update

if not sess:

raise endpoints.NotFoundException(

'No session found with key: %s' % request.websafeSessionKey)

return self._createWishlistObject(request)

@endpoints.method(WISHLIST_GET_REQUEST, BooleanMessage, path='wishlist',

http_method='DELETE', name='deleteSessionInWishlist')

def deleteSessionToWishlist(self, request):

"""Delete wishlist entry."""

user = self._getAuthUser()

user_id = getUserId(user)

p_key = ndb.Key(Profile, user_id)

# make sure a Session key is supplied

if not request.websafeSessionKey:

raise endpoints.BadRequestException("websafeSessionKey field required")

# make sure we can find the Session key. If it is bogus then

# tell the user it does not exist

try:

s_key = ndb.Key(urlsafe=request.websafeSessionKey)

except Exception, e:

raise endpoints.NotFoundException ("invalid websafeSessionKey")

sess = s_key.get()

# make sure we can get the session and if so, then we can do the update

if not sess:

raise endpoints.NotFoundException(

'No session found with key: %s' % request.websafeSessionKey)

return self._deleteWishlistObject(request)

@endpoints.method(message_types.VoidMessage, WishlistForms,

path='wishlist/sessions',

http_method='GET', name='getSessionsInWishlist')

def getSessionsInWishlist(self, request):

"""Get all Wishlist entries for the user."""

user = self._getAuthUser()

user_id = getUserId(user)

# create ancestor query for all key matches for this user

wishlist = Wishlist.query(ancestor=ndb.Key(Profile, user_id))

# return set of WishlistForm objects per Wishlist Entry

return WishlistForms(

items=[self._copyWishlistToForm(wish) for wish in wishlist]

)

@endpoints.method(WISHLIST_DURATION_GET_REQUEST, WishlistForms,

path='wishlist/getWishlistSessionsLongerThanDuration',

http_method='GET', name='getWishlistSessionsLongerThanDuration')

def getWishlistSessionsLongerThanDuration(self, request):

"""Locate all wishlist entries where the duration is equal or longer

than the requested duration"""

user = self._getAuthUser()

user_id = getUserId(user)

# create ancestor query for all key matches for this user

# and the duration is longer or equal to the specified duration

wishls = Wishlist.query(ancestor=ndb.Key(Profile, user_id)). \

filter(Wishlist.duration>=request.duration)

# return set of WishlistForm objects per Wishlist

return WishlistForms(

items=[self._copyWishlistToForm(wish) for wish in wishls]

)

# - - Speaker object - - - - - - - - - - - - - - - - - - - -

def _copySpeakerToForm(self, speaker):

"""Copy relevant fields from Speaker to SpeakerForm."""

# copy relevant fields from Speaker to SpeakerForm

sf = SpeakerForm()

for field in sf.all_fields():

if hasattr(speaker, field.name):

setattr(sf, field.name, getattr(speaker, field.name))

elif field.name == "websafeKey":

setattr(sf, field.name, speaker.key.urlsafe())

sf.check_initialized()

return sf

def _createSpeakerObject(self, request):

"""Create Speaker object, returning SpeakerForm/request."""

user = self._getAuthUser()

user_id = getUserId(user)

if not request.name:

raise endpoints.BadRequestException("Speaker 'name' field required")

if not request.email:

raise endpoints.BadRequestException("Speaker 'email' field required")

# copy SpeakerForm/ProtoRPC Message into dict

data = {field.name: getattr(request, field.name) for field in request.all_fields()}

# create Speaker key

sp_id = Speaker.allocate_ids(size=1)[0]

sp_key = ndb.Key(Speaker, sp_id)

# assign the Speaker key

data['key'] = sp_key

del data['websafeKey']

# create Speaker

speaker = Speaker(**data)

speaker.put()

return self._copySpeakerToForm(speaker)

def _updateSpeakerObject(self, request):

"""Update Speaker object, returning SpeakerForm/request."""