def put(self, name):
data = Item.parser.parse_args()
new_item = ItemModel(name, data['price'])
# check whether item exists
try:
existing_item = ItemModel.find_by_name(name)
except:
return {'message': 'db search failed'}, 500
# if item exists then update it
if existing_item:
try:
existing_item.price = data['price']
existing_item.update_item()
except:
return {'message': 'item update failed'}, 500
return {
"message": "Item '{0}' updated successfully".format(name)
}, 200
# if item is not existing then create a new item
try:
new_item.insert_item()
except:
return {'message': 'item insertion failed'}, 500
return {'message': "new item '{0}' created".format(name)}, 201
def post(cls):
json_data = request.get_json()
try: #Check input data whether valid or not
item_data = item_schema.load(json_data) #It will export json to dict
except ValidationError as err: #invalid data exception handle
return err.messages, 400
item = ItemModel.find_by_name(item_data['name'])
if item:
return {"Message" : "The item with name {} is already exists in table".format(item_data['name'])}, 400
item = ItemModel(**item_data) #Created ItemModel object
item.insert_item()
return {"Message" : "Item inserted successfully"}, 201
def post(self, name):
# item trying to add is already present in the items list
if ItemModel.find_by_name(name):
return {'message': "item '{0}' already exists".format(name)}, 400
# access class variable by ClassName.variable_name
request_data = Item.parser.parse_args()
item = ItemModel(name, request_data['price'])
try:
item.insert_item()
except:
return {'message': 'insertion to db failed'}, 500
# if error then execution will stop at return statement of except block
# if no error then return the item and success code
return item.get_json(), 201