def borrow(self, item_id, registration_id):
data = utils().init()
try:
item = self.get(item_id=item_id, fetch=app_globals.SINGLE)
if item['status'] == NEGATIVE:
# an error occured with getting item
raise Exception('item_id')
borrowed_object = borrowed()
borrowed_object.item = item['items']
user = User().get_user(registration_id)
if user['status'] == NEGATIVE:
raise Exception('user_not_found')
borrowed_object.user = user['user']
borrowed_object.max_duration = 7
borrowed_object.save()
self.reduce_item_quantity(item_id)
data['status'] = POSITIVE
data['messages'].append(utils().new_message(POSITIVE, AppStrings().get_single("borrowed_item"), data=data))
except Exception as e:
print(e)
data['status'] = NEGATIVE
if str(e) == 'item_id':
data['messages'].append(utils().new_message(NEGATIVE, AppStrings().get_single("failed_to_get_item"), data=data))
elif str(e) == 'user_not_found':
data['messages'].append(utils().new_message(NEGATIVE, AppStrings().get_single("user_get_failed"), data=data))
else:
data['messages'].append(utils().new_message(NEGATIVE, AppStrings().get_single("borrow_failed"), data=data))
return data
def add(self, _title, _author, _published_on, _category, _item_type, _price, _quantity, _rating, _summary, uploaded_by, _sub_category=None):
data = utils().init()
try:
item_object = item()
item_object.item_type = get_object_or_404(item_type, pk=_item_type)
item_object.title = _title
item_object.author = _author
item_object.published_on = _published_on
item_object.category = get_object_or_404(category, pk=_category)
item_object.price = _price
item_object.quantity = _quantity
item_object.rating = _rating
item_object.summary = _summary
item_object.uploaded_by = User().get_user(uploaded_by)['user']
item_object.save()
data['status'] = POSITIVE
data['messages'].append(utils().new_message(POSITIVE, AppStrings().get_single("item_saved"), data=data))
except Exception as e:
print(e)
data['status'] = NEGATIVE
data['messages'].append(utils().new_message(NEGATIVE, AppStrings().get_single("failed_to_add_item"), data=data))
return data
def get_borrowed_items(self, user_id):
data = utils().init()
try:
user = User().get_user(user_id=user_id)
if user['status'] == NEGATIVE:
raise Exception('user_not_found')
borrowed_object = get_list_or_404(borrowed, user=user['user'])
# print(item_types)
data['borrowed'] = borrowed_object
except Exception as e:
print(e)
data['status'] = NEGATIVE
if str(e) == 'user_not_found':
data['messages'].append(utils().new_message(NEGATIVE, AppStrings().get_single("user_get_failed"), data=data))
else:
data['messages'].append(utils().new_message(NEGATIVE, AppStrings().get_single("failed_to_get_borrowed_items"), data=data))
return utils().return_data(data)
def get(self, item_id=None, fetch=app_globals.ALL):
data = utils().init()
try:
if fetch == app_globals.ALL:
item_object = get_list_or_404(item)
elif fetch == app_globals.SINGLE:
if item_id != None:
item_object = get_object_or_404(item, id=item_id)
else:
raise Exception('item_id')
data['items'] = item_object
except Exception as e:
data['status'] = NEGATIVE
if str(e) == 'item_id':
data['messages'].append(utils().new_message(NEGATIVE, AppStrings().get_single("item_id_needed"), data=data))
else:
data['messages'].append(utils().new_message(NEGATIVE, AppStrings().get_single("failed_to_get_item"), data=data))
return data
def get_categories(self):
data = utils().init()
try:
_catgories = get_list_or_404(category)
print(_catgories)
data['categories'] = _catgories
except:
data['status'] = NEGATIVE
data['messages'].append(utils().new_message(NEGATIVE, AppStrings().get_single("get_item_types_failed"), data=data))
return utils().return_data(data)
def get_user(self, registration_id):
data = self.utils_object.init()
try:
user_object = get_object_or_404(user, registration=registration_id)
print(user_object)
data['user'] = user_object
except Exception as e:
print(e)
data['status'] = NEGATIVE
data['messages'].append(
self.utils_object.new_message(
NEGATIVE,
AppStrings().get_single("user_get_failed")))
return self.utils_object.return_data(data)
def reduce_item_quantity(self, item_id, quantity=1):
data = utils().init()
try:
item = self.get(item_id=item_id, fetch=app_globals.SINGLE)
if item['status'] == NEGATIVE:
raise Exception('item_id')
item = item['items']
item.quantity = item.quantity - quantity
item.save()
data['status'] = POSITIVE
except:
data['status'] = NEGATIVE
data['messages'].append(utils().new_message(NEGATIVE, AppStrings().get_single("item_quanity_reduction_failed"), data=data))
return data
def new_user(self, user_type, registration_id):
data = self.utils_object.init()
try:
user_object = user()
user_object.user_type = user_type
user_object.registration = registration_id
user_object.save()
except Exception as e:
print(e)
data['status'] = NEGATIVE
data['messages'].append(
self.utils_object.new_message(
NEGATIVE,
AppStrings().get_single("new_user_failed")))
return self.utils_object.return_data(data)