forked from lennykioko/Book-A-Meal
-
Notifications
You must be signed in to change notification settings - Fork 0
/
models.py
362 lines (278 loc) · 13.5 KB
/
models.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
"""Handles data storage for Users, Meals, Menu and Orders
"""
# pylint: disable=E1101
import datetime
from flask import make_response, jsonify
from werkzeug.security import generate_password_hash, check_password_hash
from flask_sqlalchemy import SQLAlchemy
db = SQLAlchemy()
class User(db.Model):
"""Contains user columns and methods to add, update and delete a user"""
__tablename__ = 'user'
id = db.Column(db.Integer, primary_key=True)
username = db.Column(db.String(250), nullable=False)
email = db.Column(db.String(250), unique=True, nullable=False)
password = db.Column(db.String(250), nullable=False)
admin = db.Column(db.Boolean)
orders = db.relationship('Order', backref=db.backref('user', lazy=True))
def __repr__(self):
return '<user {}>'.format(self.username)
@classmethod
def create_user(cls, username, email, password, admin=False):
"""Creates a new user and ensures that the email is unique"""
by_email = cls.query.filter_by(email=email).first()
if by_email is None:
password = generate_password_hash(password, method='sha256')
new_user = cls(username=username, email=email, password=password, admin=admin)
db.session.add(new_user)
db.session.commit()
return make_response(jsonify({
"message" : "user has been successfully created",
str(new_user.id) : {"username" : new_user.username,
"email" : new_user.email,
"admin" : new_user.admin}}), 201)
return make_response(jsonify({"message" : "user with that email already exists"}), 400)
@staticmethod
def update_user(user_id, username, email, password, admin):
"""Updates user information"""
user = User.query.get(user_id)
by_email = User.query.filter_by(email=email).first()
if user is None:
return make_response(jsonify({"message" : "user does not exists"}), 404)
if user.username == username and user.email == email and user.admin == admin and check_password_hash(user.password, password):
return make_response(jsonify({"message" : "No changes detected"}), 400)
if by_email is None or by_email.id == user.id:
user.username = username
user.email = email
user.password = generate_password_hash(password, method='sha256')
user.admin = admin
db.session.commit()
return make_response(jsonify({
"message" : "user has been successfully updated",
str(user.id) : {"username" : user.username,
"email" : user.email,
"admin" : user.admin}}), 200)
return make_response(jsonify({"message" : "user with that email already exists"}), 400)
@staticmethod
def reset_password(user_id, password):
"""Reset user's password"""
user = User.query.get(user_id)
if user is None:
return make_response(jsonify({"message" : "user does not exists"}), 404)
if check_password_hash(user.password, password):
return make_response(jsonify({"message" : "No changes detected"}), 400)
user.password = generate_password_hash(password, method='sha256')
db.session.commit()
return make_response(jsonify({
"message" : "your password has been successfully reset",
str(user.id) : {"username" : user.username,
"email" : user.email,
"admin" : user.admin}}), 200)
@staticmethod
def delete_user(user_id):
"""Deletes a user"""
user = User.query.get(user_id)
if user is None:
return make_response(jsonify({"message" : "user does not exists"}), 404)
db.session.delete(user)
db.session.commit()
return make_response(jsonify({"message" : "user has been successfully deleted"}), 200)
@staticmethod
def get_user(user_id):
"""Gets a particular user"""
user = User.query.get(user_id)
if user is None:
return make_response(jsonify({"message" : "user does not exists"}), 404)
records = Order.query.filter_by(user_id=user.id).all()
orders = []
for record in records:
orders.append(str(record))
info = {"user_id" : user.id, "email" : user.email,
"username" : user.username, "admin" : user.admin,
"orders" : orders}
return make_response(jsonify({user.id : info}), 200)
class Meal(db.Model):
"""Contains meal columns and methods to add, update and delete a meal"""
__tablename__ = 'meal'
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(250), nullable=False, unique=True)
price = db.Column(db.Integer, nullable=False)
in_menu = db.Column(db.Boolean)
def __repr__(self):
return '<meal {}>'.format(self.name)
@classmethod
def create_meal(cls, name, price, in_menu=False):
"""Creates a new meal and ensures that the name is unique"""
by_name = cls.query.filter_by(name=name).first()
if by_name is None:
new_meal = cls(name=name, price=price, in_menu=in_menu)
db.session.add(new_meal)
db.session.commit()
return make_response(jsonify({
"message" : "meal has been successfully created",
str(new_meal.id) : {"name" : new_meal.name,
"in_menu" : new_meal.in_menu,
"price" : new_meal.price}}), 201)
return make_response(jsonify({"message" : "meal with that name already exists"}), 400)
@staticmethod
def update_meal(meal_id, name, price, in_menu):
"""Updates meal information"""
meal = Meal.query.get(meal_id)
by_name = Meal.query.filter_by(name=name).first()
if meal is None:
return make_response(jsonify({"message" : "meal does not exists"}), 404)
if meal.name == name and meal.price == price and meal.in_menu == in_menu:
return make_response(jsonify({"message" : "No changes detected"}), 400)
if by_name is None or meal.id == by_name.id:
meal.name = name
meal.price = price
meal.in_menu = in_menu
db.session.commit()
return make_response(jsonify({
"message" : "meal has been successfully updated",
str(meal.id) : {"name" : meal.name,
"in_menu" : meal.in_menu,
"price" : meal.price}}), 200)
return make_response(jsonify({"message" : "meal with that name already exists"}), 400)
@staticmethod
def delete_meal(meal_id):
"""Deletes a meal"""
meal = Meal.query.get(meal_id)
if meal is None:
return make_response(jsonify({"message" : "meal does not exists"}), 404)
db.session.delete(meal)
db.session.commit()
return make_response(jsonify({"message" : "meal has been successfully deleted"}), 200)
@staticmethod
def get_meal(meal_id):
"""Gets a particular meal"""
meal = Meal.query.get(meal_id)
if meal is None:
return make_response(jsonify({"message" : "meal does not exists"}), 404)
info = {"meal_id" : meal.id, "name" : meal.name, "price" : meal.price, "in_menu" : meal.in_menu}
return make_response(jsonify({meal.id : info}), 200)
@staticmethod
def add_to_menu(meal_id):
"""Adds a particular meal to the menu"""
meal = Meal.query.get(meal_id)
if meal is None:
return make_response(jsonify({"message" : "meal does not exists"}), 404)
if meal.in_menu:
return make_response(jsonify({"message" : "meal already in the menu"}), 400)
meal.in_menu = True
db.session.commit()
return make_response(jsonify({
"message" : "meal has been successfully added to the menu",
str(meal.id) : {"name" : meal.name,
"in_menu" : meal.in_menu,
"price" : meal.price}}), 200)
@staticmethod
def remove_from_menu(meal_id):
"""Removes a particular meal from the menu"""
meal = Meal.query.get(meal_id)
if meal is None:
return make_response(jsonify({"message" : "meal does not exists"}), 404)
if not meal.in_menu:
return make_response(jsonify({"message" : "meal already not in the menu"}), 400)
meal.in_menu = False
db.session.commit()
return make_response(jsonify({
"message" : "meal has been successfully removed from the menu",
str(meal.id) : {"name" : meal.name,
"in_menu" : meal.in_menu,
"price" : meal.price}}), 200)
@staticmethod
def get_menu(meal_id):
"""Gets a particular meal on the menu"""
meal = Meal.query.get(meal_id)
if meal is None:
return make_response(jsonify({"message" : "meal does not exists"}), 404)
if not meal.in_menu:
return make_response(jsonify({
"message" : "kindly ensure that this meal is in the menu"}), 400)
info = {"meal_id" : meal.id, "name" : meal.name, "price" : meal.price, "in_menu" : meal.in_menu}
return make_response(jsonify({meal.id : info}), 200)
class Order(db.Model):
"""Contains order columns and methods to add, update and delete an order"""
__tablename__ = 'order'
id = db.Column(db.Integer, primary_key=True)
meal_id = db.Column(db.Integer, nullable=False)
meal_name = db.Column(db.String(250), nullable=False)
price = db.Column(db.Integer, nullable=False)
created_at = db.Column(db.DateTime, default=datetime.datetime.utcnow)
user_email = db.Column(db.String(250), nullable=False)
user_id = db.Column(db.Integer, db.ForeignKey('user.id', ondelete='CASCADE')) # tablename
def __repr__(self):
return '<order {}: {}>'.format(self.id, self.meal_name)
@classmethod
def create_order(cls, meal_id, user_id):
"""Create a new order"""
meal = Meal.query.get(meal_id)
user = User.query.get(user_id)
if meal is None:
return make_response(jsonify({"message" : "meal does not exists"}), 404)
if user is None:
return make_response(jsonify({"message" : "user does not exists"}), 404)
if not meal.in_menu:
return make_response(jsonify({
"message" : "kindly ensure that this meal is in the menu"}), 400)
new_order = cls(meal_id=meal.id, meal_name=meal.name,
price=meal.price, user_id=user.id, user_email=user.email)
db.session.add(new_order)
db.session.commit()
return make_response(jsonify({
"message" : "your order has been successfully created",
str(new_order.id) : {"order_id" : new_order.id,
"meal_id" : new_order.meal_id,
"meal_name" : new_order.meal_name,
"price" : new_order.price,
"user_id" : new_order.user_id,
"user_email" : new_order.user_email,
"created_at" : new_order.created_at}}), 201)
@staticmethod
def update_order(order_id, meal_id):
"""Updates order information"""
order = Order.query.get(order_id)
meal = Meal.query.get(meal_id)
if order is None:
return make_response(jsonify({"message" : "order does not exists"}), 404)
if meal is None:
return make_response(jsonify({"message" : "meal does not exists"}), 404)
if not meal.in_menu:
return make_response(jsonify({
"message" : "kindly ensure that this meal is in the menu"}), 400)
if order.meal_id == meal.id:
return make_response(jsonify({"message" : "You had ordered this meal initially"}), 400)
order.meal_id = meal.id
order.meal_name = meal.name
order.price = meal.price
db.session.commit()
return make_response(jsonify({
"message" : "your order has been successfully updated",
str(order.id) : {"order_id" : order.id,
"meal_id" : order.meal_id,
"meal_name" : order.meal_name,
"price" : order.price}}), 200)
@staticmethod
def delete_order(order_id):
"""Delete an order"""
order = Order.query.get(order_id)
if order is None:
return make_response(jsonify({"message" : "order does not exists"}), 404)
db.session.delete(order)
db.session.commit()
return make_response(jsonify({"message" : "your order has been successfully deleted"}), 200)
@staticmethod
def get_order(order_id):
"""Get a particular order"""
order = Order.query.get(order_id)
if order is None:
return make_response(jsonify({"message" : "order does not exists"}), 404)
info = {"order_id" : order.id,
"meal_id" : order.meal_id,
"meal_name" : order.meal_name,
"price" : order.price,
"user_id" : order.user_id,
"user_email" : order.user_email,
"created_at" : order.created_at}
return make_response(jsonify({order.id : info}), 200)