def get(self):
# req_json = json.loads(self.request.body)
# expense_name = req_json[IDENTIFIER_EXPENSE_NAME]
expense_name = self.request.get(IDENTIFIER_EXPENSE_NAME)
# user_email = req_json[IDENTIFIER_USER_EMAIL]
user_email = self.request.get(IDENTIFIER_USER_EMAIL)
# new_sharer_email = req_json[IDENTIFIER_NEW_EMAIL]
new_sharer_email = self.request.get(IDENTIFIER_NEW_EMAIL)
target_expense = None
expense_lst = Expense.query(Expense.expense_name == expense_name)
for expense in expense_lst:
if user_email in expense.user_email_lst:
target_expense = expense
break
if target_expense == None:
response = {}
response[
'error'] = 'the expense: ' + expense_name + ' has not been created'
return self.respond(**response)
if not new_sharer_email in target_expense.user_email_lst:
target_expense.user_email_lst.insert(0, new_sharer_email)
target_expense.put()
self.respond(expense_id=target_expense.expense_id,
new_user=new_sharer_email,
status="Success")
def get(self):
apt_name = self.request.get(IDENTIFIER_APT_NAME)
user_email = self.request.get(IDENTIFIER_USER_EMAIL)
apt_lst = Apartment.query(Apartment.apt_name == apt_name).fetch()
cur_apt = None
for apt in apt_lst:
if user_email in apt.user_email_lst:
cur_apt = apt
if cur_apt == None:
response = {}
response[
'error'] = 'the apt: ' + apt_name + ' is not available for user: ' + user_email
return self.respond(**response)
for expense_id in cur_apt.expense_id_lst:
expense_lst = Expense.query(
Expense.expense_id == expense_id).fetch()
if len(expense_lst) > 0:
expense = expense_lst[0]
if not expense.is_paid:
expense.checkout()
cur_apt.total_cost += expense.total_cost
cur_apt.put()
self.respond(status="Success")
def get(self):
cover_url = None
# if IDENTIFIER_ITEM_PHOTO in req_json:
# cover_url = req_json[IDENTIFIER_ITEM_PHOTO]
item_id = uuid.uuid4()
# req_json = json.loads(self.request.body)
# item_name = req_json[IDENTIFIER_ITEM_NAME]
item_name = self.request.get(IDENTIFIER_ITEM_NAME)
# expense_name = req_json[IDENTIFIER_EXPENSE_NAME]
expense_name = self.request.get(IDENTIFIER_EXPENSE_NAME)
# buyer_email = req_json[IDENTIFIER_BUYER_EMAIL]
buyer_email = self.request.get(IDENTIFIER_BUYER_EMAIL)
# sharer_email_lst = req_json[IDENTIFIER_SHARER_LIST]
sharer_emails = self.request.get(IDENTIFIER_SHARER_LIST)
sharer_email_lst = sharer_emails.split(",")
expense_lst = Expense.query(Expense.expense_name == expense_name)
expense_id = None
# total_cost = float(req_json[IDENTIFIER_TOTAL_COST])
cost = self.request.get(IDENTIFIER_TOTAL_COST)
total_cost = float(cost)
target_expense = None
for expense in expense_lst:
if buyer_email in expense.user_email_lst:
expense_id = expense.expense_id
target_expense = expense
break
if expense_id == None:
response = {}
response['error'] = 'the buyer email: ' + buyer_email + ' is not valid for this expense/apartment'
return self.respond(**response)
new_item = Item(item_id = str(item_id),
item_name = item_name,
cover_url = cover_url,
expense_id = expense_id,
buyer_email = buyer_email,
sharer_email_lst = sharer_email_lst,
total_cost = total_cost
)
new_item.put()
target_expense.item_id_lst.insert(0, str(item_id))
target_expense.put()
self.respond(item_id_id = str(item_id), status="Success")
def get(self):
cover_url = None
# if IDENTIFIER_ITEM_PHOTO in req_json:
# cover_url = req_json[IDENTIFIER_ITEM_PHOTO]
item_id = uuid.uuid4()
# req_json = json.loads(self.request.body)
# item_name = req_json[IDENTIFIER_ITEM_NAME]
item_name = self.request.get(IDENTIFIER_ITEM_NAME)
# expense_name = req_json[IDENTIFIER_EXPENSE_NAME]
expense_name = self.request.get(IDENTIFIER_EXPENSE_NAME)
# buyer_email = req_json[IDENTIFIER_BUYER_EMAIL]
buyer_email = self.request.get(IDENTIFIER_BUYER_EMAIL)
# sharer_email_lst = req_json[IDENTIFIER_SHARER_LIST]
sharer_emails = self.request.get(IDENTIFIER_SHARER_LIST)
sharer_email_lst = sharer_emails.split(",")
expense_lst = Expense.query(Expense.expense_name == expense_name)
expense_id = None
# total_cost = float(req_json[IDENTIFIER_TOTAL_COST])
cost = self.request.get(IDENTIFIER_TOTAL_COST)
total_cost = float(cost)
target_expense = None
for expense in expense_lst:
if buyer_email in expense.user_email_lst:
expense_id = expense.expense_id
target_expense = expense
break
if expense_id == None:
response = {}
response[
'error'] = 'the buyer email: ' + buyer_email + ' is not valid for this expense/apartment'
return self.respond(**response)
new_item = Item(item_id=str(item_id),
item_name=item_name,
cover_url=cover_url,
expense_id=expense_id,
buyer_email=buyer_email,
sharer_email_lst=sharer_email_lst,
total_cost=total_cost)
new_item.put()
target_expense.item_id_lst.insert(0, str(item_id))
target_expense.put()
self.respond(item_id_id=str(item_id), status="Success")
def get(self):
print("get finish task request")
task_id = self.request.get(IDENTIFIER_TASK_ID)
total_cost = self.request.get(IDENTIFIER_TOTAL_COST)
user_email = self.request.get(IDENTIFIER_USER_EMAIL)
total_cost = float(total_cost)
print("get cost " + str(total_cost))
tasks = Task.query(Task.task_id == task_id).fetch()
task = tasks[0]
print("Found the task " + task.task_name)
if task.finished:
response = {}
response['error'] = 'the task has already been finished'
return self.respond(**response)
if user_email != task.charger_email:
response = {}
response['error'] = 'the task has been assigned to other roommate'
return self.respond(**response)
task.finished = True
task.put()
item_id = str(uuid.uuid4())
sharer_lst = task.candidate_lst
# sharer_lst.remove(task.charger_email) # newly removed this line
print("creating item ")
new_Item = Item(item_id=item_id,
cover_url=str(task.photo_blobkey),
expense_id=task.expense_id,
total_cost=total_cost,
buyer_email=task.charger_email,
sharer_email_lst=sharer_lst,
item_name=task.task_name)
new_Item.put()
expenses = Expense.query(Expense.expense_id == task.expense_id).fetch()
if len(expenses) == 0:
print("cannot find the expense")
else:
expense = expenses[0]
item_ids = expense.item_id_lst
item_ids.append(item_id)
expense.item_id_lst = item_ids
expense.put()
print("done ")
self.respond(item_name=task.task_name,
item_id=task.task_id,
status="Success")
def get(self):
expense_name = self.request.get(IDENTIFIER_EXPENSE_NAME)
apt_name = self.request.get(IDENTIFIER_APT_NAME)
user_email = self.request.get(IDENTIFIER_USER_EMAIL)
apt_lst = Apartment.query(Apartment.apt_name == apt_name).fetch()
cur_apt = None
for apt in apt_lst:
if user_email in apt.user_email_lst:
cur_apt = apt
if cur_apt == None:
response = {}
response[
'error'] = 'the apt: ' + apt_name + ' is not available for user: '******'error'] = 'the apt: ' + apt_name + ' does not have a expense named: ' + expense_name
return self.respond(**response)
if cur_expense.is_paid:
response = {}
response[
'error'] = 'the : ' + expense_name + ' has already been paid'
return self.respond(**response)
cur_expense.checkout()
cur_apt.total_cost += cur_expense.total_cost
cur_apt.put()
user_info_lst = []
for user_email in cur_apt.user_email_lst:
users = User.query(User.user_email == user_email).fetch()
user = users[0]
user_info = {}
user_info['email:'] = user_email
user_info['nick_name'] = user.nick_name
user_info['owe'] = user.cost
user_info['owed'] = user.borrow
user_info['balance'] = user.owe
user_info_lst.append(user_info)
self.respond(user_info_lst=user_info_lst, status="Success")
def get(self):
expense_name = self.request.get(IDENTIFIER_EXPENSE_NAME)
apt_name = self.request.get(IDENTIFIER_APT_NAME)
user_email = self.request.get(IDENTIFIER_USER_EMAIL)
apt_lst = Apartment.query(Apartment.apt_name == apt_name).fetch()
cur_apt = None
for apt in apt_lst:
if user_email in apt.user_email_lst:
cur_apt = apt
if cur_apt == None:
response = {}
response['error'] = 'the apt: ' + apt_name + ' is not available for user: '******'error'] = 'the apt: ' + apt_name + ' does not have a expense named: ' + expense_name
return self.respond(**response)
if cur_expense.is_paid:
response = {}
response['error'] = 'the : ' + expense_name + ' has already been paid'
return self.respond(**response)
cur_expense.checkout()
cur_apt.total_cost += cur_expense.total_cost
cur_apt.put()
user_info_lst = []
for user_email in cur_apt.user_email_lst:
users = User.query(User.user_email == user_email).fetch()
user = users[0]
user_info = {}
user_info['email:'] = user_email
user_info['nick_name'] = user.nick_name
user_info['owe'] = user.cost
user_info['owed'] = user.borrow
user_info['balance'] = user.owe
user_info_lst.append(user_info)
self.respond(user_info_lst = user_info_lst, status="Success")
def get(self):
apt_id = self.request.get(IDENTIFIER_APT_ID)
target_apt_lst = Apartment.query(Apartment.apt_id == apt_id).fetch()
if len(target_apt_lst) != 1:
print "target_apt_lst length error:" + str(len(target_apt_lst))
query_apt = target_apt_lst[0]
expense_id_lst = query_apt.expense_id_lst
print "expense_id_lst length:" + str(len(expense_id_lst))
unassigned_tasks_lst = []
assigned_tasks_lst = []
finished_tasks_lst = []
for expense_id in expense_id_lst:
# expense_id = self.request.get(IDENTIFIER_EXPENSE_ID)
expenses = Expense.query(Expense.expense_id == expense_id).fetch()
if len(expenses) == 0:
continue
expense = expenses[0]
tasks = expense.getAllTasks()
for task in tasks:
cur_task = {}
cur_task['photo_blobkey'] = str(task.photo_blobkey)
cur_task['creator_nickname'] = task.getCreaterNickName()
cur_task['creator_email'] = task.creater_email
cur_task['task_name'] = task.task_name
cur_task['description'] = task.description
cur_task['task_id'] = str(task.task_id)
cur_task['expense_id'] = str(task.expense_id)
cur_task['candidate_lst_str'] = task.getCandidateListString()
if task.assigned:
cur_task['charger_name'] = task.getChargerNickName()
cur_task['charger_email'] = task.charger_email
if task.finished:
finished_tasks_lst.append(cur_task)
else:
assigned_tasks_lst.append(cur_task)
else:
unassigned_tasks_lst.append(cur_task)
task_info = {}
task_info['finished_tasks_lst'] = finished_tasks_lst
task_info['unassigned_tasks_lst'] = unassigned_tasks_lst
task_info['assigned_tasks_lst'] = assigned_tasks_lst
self.respond(task_info=task_info, status="Success")
def get(self):
apt_id = self.request.get(IDENTIFIER_APT_ID)
target_apt_lst = Apartment.query(Apartment.apt_id == apt_id).fetch()
if len(target_apt_lst)!=1:
print "target_apt_lst length error:" + str(len(target_apt_lst))
query_apt = target_apt_lst[0]
expense_id_lst = query_apt.expense_id_lst
print "expense_id_lst length:" + str(len(expense_id_lst))
unassigned_tasks_lst = []
assigned_tasks_lst = []
finished_tasks_lst = []
for expense_id in expense_id_lst:
# expense_id = self.request.get(IDENTIFIER_EXPENSE_ID)
expenses = Expense.query(Expense.expense_id == expense_id).fetch()
if len(expenses) == 0:
continue
expense = expenses[0]
tasks = expense.getAllTasks()
for task in tasks:
cur_task = {}
cur_task['photo_blobkey'] = str(task.photo_blobkey)
cur_task['creator_nickname'] = task.getCreaterNickName()
cur_task['creator_email'] = task.creater_email
cur_task['task_name'] = task.task_name
cur_task['description'] = task.description
cur_task['task_id'] = str(task.task_id)
cur_task['expense_id'] = str(task.expense_id)
cur_task['candidate_lst_str'] = task.getCandidateListString()
if task.assigned:
cur_task['charger_name'] = task.getChargerNickName()
cur_task['charger_email'] = task.charger_email
if task.finished:
finished_tasks_lst.append(cur_task)
else:
assigned_tasks_lst.append(cur_task)
else:
unassigned_tasks_lst.append(cur_task)
task_info = {}
task_info['finished_tasks_lst'] = finished_tasks_lst
task_info['unassigned_tasks_lst'] = unassigned_tasks_lst
task_info['assigned_tasks_lst'] = assigned_tasks_lst
self.respond(task_info=task_info, status="Success")
def get(self):
print("get finish task request")
task_id = self.request.get(IDENTIFIER_TASK_ID)
total_cost = self.request.get(IDENTIFIER_TOTAL_COST)
user_email = self.request.get(IDENTIFIER_USER_EMAIL)
total_cost = float(total_cost)
print("get cost " + str(total_cost))
tasks = Task.query(Task.task_id == task_id).fetch()
task = tasks[0]
print("Found the task " + task.task_name)
if task.finished:
response = {}
response['error'] = 'the task has already been finished'
return self.respond(**response)
if user_email != task.charger_email:
response = {}
response['error'] = 'the task has been assigned to other roommate'
return self.respond(**response)
task.finished = True
task.put()
item_id = str(uuid.uuid4())
sharer_lst = task.candidate_lst
# sharer_lst.remove(task.charger_email) # newly removed this line
print("creating item ")
new_Item = Item(item_id = item_id, cover_url = str(task.photo_blobkey), expense_id = task.expense_id,
total_cost = total_cost,
buyer_email = task.charger_email,
sharer_email_lst = sharer_lst,
item_name = task.task_name)
new_Item.put()
expenses = Expense.query(Expense.expense_id == task.expense_id).fetch()
if len(expenses) == 0:
print("cannot find the expense");
else:
expense = expenses[0]
item_ids = expense.item_id_lst
item_ids.append(item_id)
expense.item_id_lst = item_ids
expense.put()
print("done ")
self.respond(item_name = task.task_name, item_id = task.task_id, status="Success")
def get(self):
# req_json = json.loads(self.request.body)
# expense_name = req_json[IDENTIFIER_EXPENSE_NAME]
expense_name = self.request.get(IDENTIFIER_EXPENSE_NAME)
# user_email = req_json[IDENTIFIER_USER_EMAIL]
user_email = self.request.get(IDENTIFIER_USER_EMAIL)
# new_sharer_email = req_json[IDENTIFIER_NEW_EMAIL]
new_sharer_email = self.request.get(IDENTIFIER_NEW_EMAIL)
target_expense = None
expense_lst = Expense.query(Expense.expense_name == expense_name)
for expense in expense_lst:
if user_email in expense.user_email_lst:
target_expense = expense
break
if target_expense == None:
response = {}
response['error'] = 'the expense: ' + expense_name + ' has not been created'
return self.respond(**response)
if not new_sharer_email in target_expense.user_email_lst:
target_expense.user_email_lst.insert(0, new_sharer_email)
target_expense.put()
self.respond(expense_id = target_expense.expense_id,
new_user = new_sharer_email, status="Success")
def get(self):
apt_name = self.request.get(IDENTIFIER_APT_NAME)
user_email = self.request.get(IDENTIFIER_USER_EMAIL)
apt_lst = Apartment.query(Apartment.apt_name == apt_name).fetch()
cur_apt = None
for apt in apt_lst:
if user_email in apt.user_email_lst:
cur_apt = apt
if cur_apt == None:
response = {}
response['error'] = 'the apt: ' + apt_name + ' is not available for user: ' + user_email
return self.respond(**response)
for expense_id in cur_apt.expense_id_lst:
expense_lst = Expense.query(Expense.expense_id == expense_id).fetch()
if len(expense_lst) > 0:
expense = expense_lst[0]
if not expense.is_paid:
expense.checkout()
cur_apt.total_cost += expense.total_cost
cur_apt.put()
self.respond(status="Success")
def get(self):
expense_id = self.request.get(IDENTIFIER_EXPENSE_ID)
print "expense_id :" + expense_id
expenses = Expense.query(Expense.expense_id == expense_id).fetch()
expense = expenses[0]
expense_name = expense.expense_name
items = expense.getAllItems()
tasks = expense.getAllTasks()
expected_cost = 0.0
items_lst = []
is_paid = expense.is_paid
expense_user_lst = expense.getUserNickNameLst()
for item in items:
expected_cost += item.total_cost
cur_item = {}
cur_item['item_cost'] = item.total_cost
cur_item['is_paid'] = item.is_paid
cur_item['item_id'] = str(item.item_id)
cur_item['cover_url'] = item.cover_url
cur_item['buyer'] = item.getBuyer()
cur_item['sharer_lst'] = item.getSharersNickName()
cur_item['sharer_email_lst'] = item.sharer_email_lst
cur_item['item_name'] = item.item_name
cur_item[
'expense_id'] = item.expense_id # fixed ; there was no expense_id attached here
cur_item['buyer_email'] = item.buyer_email
items_lst.append(cur_item)
finished_tasks_lst = []
unassigned_tasks_lst = []
assigned_tasks_lst = []
for task in tasks:
cur_task = {}
cur_task['photo'] = str(task.photo_blobkey)
cur_task['creater'] = task.getCreaterNickName()
cur_task['creater_email'] = task.creater_email
cur_task['task_name'] = task.task_name
cur_task['task_id'] = str(task.task_id)
if task.assigned:
cur_task['person in charge'] = task.getChargerNickName()
cur_task['person in charge email'] = task.charger_email
if task.finished:
finished_tasks_lst.append(cur_task)
else:
assigned_tasks_lst.append(cur_task)
else:
unassigned_tasks_lst.append(cur_task)
task_info = {}
task_info['finished_tasks_lst'] = finished_tasks_lst
task_info['unassigned_tasks_lst'] = unassigned_tasks_lst
task_info['assigned_tasks_lst'] = assigned_tasks_lst
user_email_lst = expense.user_email_lst
self.respond(total_cost=expected_cost,
items_lst=items_lst,
is_paid=is_paid,
expense_name=expense_name,
expense_user_lst=expense_user_lst,
user_email_lst=user_email_lst,
task_info=task_info,
status='Success')
def get(self):
expense_id = uuid.uuid4()
# req_json = json.loads(self.request.body)
# expense_name = req_json[IDENTIFIER_EXPENSE_NAME ]
expense_name = self.request.get(IDENTIFIER_EXPENSE_NAME)
# user_email = req_json[IDENTIFIER_USER_EMAIL]
user_email = self.request.get(IDENTIFIER_USER_EMAIL)
# apt_name = req_json[IDENTIFIER_APT_NAME]
apt_name = self.request.get(IDENTIFIER_APT_NAME)
user_emails = self.request.get(IDENTIFIER_USER_LIST)
user_email_lst = user_emails.split(",")
target_apt_lst = Apartment.query(
Apartment.apt_name == apt_name).fetch()
target_apt = None
for apt in target_apt_lst:
if user_email in apt.user_email_lst:
target_apt = apt
break
if target_apt == None:
response = {}
response[
'error'] = 'the user: '******' is not valid for apt: ' + apt_name
return self.respond(**response)
# user_email_lst.insert(0, user_email)
# check whether this apt name is valid or not
expense_lst = Expense.query(Expense.expense_name == expense_name)
for expense in expense_lst:
for user in user_email_lst:
if user in expense.user_email_lst:
response = {}
response[
'error'] = 'the apartment name: ' + expense_name + ' has not been used for ' + user
return self.respond(**response)
# check whether all of these email are valid users
for user in user_email_lst:
users = User.query(User.user_email == user).fetch()
if len(users) == 0:
response = {}
response[
'error'] = 'the email: ' + user + ' has not been registered'
return self.respond(**response)
cover_url = None
# if IDENTIFIER_APT_PHOTO in req_json:
# cover_url = req_json[IDENTIFIER_APT_PHOTO]
new_expense = Expense(apt_id=target_apt.apt_id,
creater_email=user_email,
user_email_lst=user_email_lst,
cover_url=cover_url,
expense_name=expense_name,
total_cost=0,
is_paid=False,
expense_id=str(expense_id))
target_apt.expense_id_lst.insert(0, str(expense_id))
new_expense.put()
target_apt.put()
self.respond(expense_id=str(expense_id), status="Success")
def get(self):
expense_id = self.request.get(IDENTIFIER_EXPENSE_ID)
print "expense_id :" + expense_id
expenses = Expense.query(Expense.expense_id == expense_id).fetch()
expense = expenses[0]
expense_name = expense.expense_name
items = expense.getAllItems()
tasks = expense.getAllTasks()
expected_cost = 0.0
items_lst = []
is_paid = expense.is_paid
expense_user_lst = expense.getUserNickNameLst()
for item in items:
expected_cost += item.total_cost
cur_item = {}
cur_item['item_cost'] = item.total_cost
cur_item['is_paid'] = item.is_paid
cur_item['item_id'] = str(item.item_id)
cur_item['cover_url'] = item.cover_url
cur_item['buyer'] = item.getBuyer()
cur_item['sharer_lst'] = item.getSharersNickName()
cur_item['sharer_email_lst'] = item.sharer_email_lst
cur_item['item_name'] = item.item_name
cur_item['expense_id'] = item.expense_id # fixed ; there was no expense_id attached here
cur_item['buyer_email'] = item.buyer_email
items_lst.append(cur_item)
finished_tasks_lst = []
unassigned_tasks_lst = []
assigned_tasks_lst = []
for task in tasks:
cur_task = {}
cur_task['photo'] = str(task.photo_blobkey)
cur_task['creater'] = task.getCreaterNickName()
cur_task['creater_email'] = task.creater_email
cur_task['task_name'] = task.task_name
cur_task['task_id'] = str(task.task_id)
if task.assigned:
cur_task['person in charge'] = task.getChargerNickName()
cur_task['person in charge email'] = task.charger_email
if task.finished:
finished_tasks_lst.append(cur_task)
else:
assigned_tasks_lst.append(cur_task)
else:
unassigned_tasks_lst.append(cur_task)
task_info = {}
task_info['finished_tasks_lst'] = finished_tasks_lst
task_info['unassigned_tasks_lst'] = unassigned_tasks_lst
task_info['assigned_tasks_lst'] = assigned_tasks_lst
user_email_lst=expense.user_email_lst
self.respond(total_cost = expected_cost, items_lst = items_lst, is_paid = is_paid,
expense_name = expense_name, expense_user_lst = expense_user_lst, user_email_lst=user_email_lst,
task_info = task_info, status = 'Success')
def get(self):
expense_id = uuid.uuid4()
# req_json = json.loads(self.request.body)
# expense_name = req_json[IDENTIFIER_EXPENSE_NAME ]
expense_name = self.request.get(IDENTIFIER_EXPENSE_NAME)
# user_email = req_json[IDENTIFIER_USER_EMAIL]
user_email = self.request.get(IDENTIFIER_USER_EMAIL)
# apt_name = req_json[IDENTIFIER_APT_NAME]
apt_name = self.request.get(IDENTIFIER_APT_NAME)
user_emails = self.request.get(IDENTIFIER_USER_LIST)
user_email_lst = user_emails.split(",")
target_apt_lst = Apartment.query(Apartment.apt_name == apt_name).fetch()
target_apt = None
for apt in target_apt_lst:
if user_email in apt.user_email_lst:
target_apt = apt
break
if target_apt == None:
response = {}
response['error'] = 'the user: '******' is not valid for apt: ' + apt_name
return self.respond(**response)
# user_email_lst.insert(0, user_email)
# check whether this apt name is valid or not
expense_lst = Expense.query(Expense.expense_name == expense_name)
for expense in expense_lst:
for user in user_email_lst:
if user in expense.user_email_lst:
response = {}
response['error'] = 'the apartment name: ' + expense_name + ' has not been used for ' + user
return self.respond(**response)
# check whether all of these email are valid users
for user in user_email_lst:
users = User.query(User.user_email == user).fetch()
if len(users) == 0:
response = {}
response['error'] = 'the email: ' + user + ' has not been registered'
return self.respond(**response)
cover_url = None
# if IDENTIFIER_APT_PHOTO in req_json:
# cover_url = req_json[IDENTIFIER_APT_PHOTO]
new_expense = Expense(apt_id = target_apt.apt_id,
creater_email = user_email,
user_email_lst = user_email_lst,
cover_url = cover_url,
expense_name = expense_name,
total_cost = 0,
is_paid = False,
expense_id = str(expense_id ))
target_apt.expense_id_lst.insert(0, str(expense_id))
new_expense.put()
target_apt.put()
self.respond(expense_id = str(expense_id), status="Success")