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Commit 25f473b

Browse files
Updated API
1 parent 8797f24 commit 25f473b

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5 files changed

+157
-37
lines changed

5 files changed

+157
-37
lines changed

‎.gitignore

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,3 +1,4 @@
11
venv
22
*__pycache__
3-
.vscode
3+
.vscode
4+
*.db

‎data_generator.py

Lines changed: 46 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,46 @@
1+
from random import randrange
2+
from sqlite3 import Connection as SQLite3Connection
3+
from datetime import datetime
4+
from faker import Faker
5+
from sqlalchemy import event
6+
from sqlalchemy.engine import Engine
7+
from flask import Flask
8+
from flask_sqlalchemy import SQLAlchemy
9+
import server
10+
11+
# app
12+
app = Flask(__name__)
13+
14+
# config
15+
# app.config["SQLALCHEMY_DATABASE_URI"] = "sqlite:///:memory:"
16+
app.config["SQLALCHEMY_DATABASE_URI"] = "sqlite:///database.db"
17+
app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = True
18+
19+
20+
db = SQLAlchemy(app)
21+
faker = Faker()
22+
23+
# create dummy users
24+
for i in range(10):
25+
fname = faker.first_name()
26+
lname = faker.last_name()
27+
username = faker.user_name()
28+
dob = faker.date()
29+
30+
new_user = server.User(fname=fname, lname=lname, username=username, dob=dob)
31+
32+
db.session.add(new_user)
33+
db.session.commit()
34+
35+
# create dummy blog posts
36+
for i in range(10):
37+
title = faker.sentence(5)
38+
content = faker.paragraph(190)
39+
date = faker.date_time()
40+
user_id = randrange(1, 10)
41+
42+
new_blog_post = server.Post(
43+
title=title, content=content, date=date, user_id=user_id
44+
)
45+
db.session.add(new_blog_post)
46+
db.session.commit()

‎database.file

-24 KB
Binary file not shown.

‎linked_list.py

Lines changed: 27 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -9,6 +9,21 @@ def __init__(self):
99
self.head = None
1010
self.last_node = None
1111

12+
def to_list(self):
13+
# Check if linked list is empty, if so return an empty array
14+
llist = []
15+
if self.head is None:
16+
return llist
17+
18+
# traverse thro the linked list
19+
20+
node = self.head
21+
while node:
22+
llist.append(node.data)
23+
node = node.next_node
24+
25+
return llist
26+
1227
def print_ll(self):
1328
ll_string = ""
1429
node = self.head
@@ -40,3 +55,15 @@ def insert_end(self, data):
4055

4156
self.last_node.next_node = Node(data, None)
4257
self.last_node = self.last_node.next_node
58+
59+
def get_user_by_id(self, user_id):
60+
node = self.head
61+
62+
while node:
63+
if node.data["id"] is int(user_id):
64+
# if a match is found, return the user data(dict)
65+
return node.data
66+
# if not, keep looking
67+
node = node.next_node
68+
# user id not found, we return none
69+
return None

‎server.py

Lines changed: 82 additions & 36 deletions
Original file line numberDiff line numberDiff line change
@@ -8,18 +8,11 @@
88

99

1010
app = Flask(__name__)
11-
app.config["SQLALCHEMY_DATABASE_URI"] = "sqlite:///database.file"
11+
# app.config["SQLALCHEMY_DATABASE_URI"] = "sqlite:///:memory:"
12+
app.config["SQLALCHEMY_DATABASE_URI"] = "sqlite:///database.db"
1213
app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = True
1314

1415

15-
# configure sqlite3 to enforce foreign key constraints
16-
@event.listens_for(Engine, "connect")
17-
def _set_sqlite_Pragma(dbapi_connection, connection_record):
18-
if isinstance(dbapi_connection, SQLite3Connection):
19-
cursor = dbapi_connection.cursor()
20-
cursor.execute("PRAGMA foreign_keys=ON;")
21-
cursor.close()
22-
2316
db = SQLAlchemy(app)
2417
now = datetime.now()
2518

@@ -28,68 +21,121 @@ class User(db.Model):
2821
id = db.Column(db.Integer, primary_key=True)
2922
fname = db.Column(db.String(50), nullable=False)
3023
lname = db.Column(db.String(50), nullable=False)
31-
username = db.Column(db.String(50), unique = True, nullable=False)
32-
dob = db.Column(db.String(50), unique = True, nullable=False)
33-
posts = db.relationship("Post")
24+
username = db.Column(db.String(50), unique=True, nullable=False)
25+
dob = db.Column(db.String(50), nullable=False)
26+
posts = db.relationship(
27+
"Post", backref=db.backref("posts", lazy=True), cascade="all, delete"
28+
)
29+
3430

3531
class Post(db.Model):
3632
id = db.Column(db.Integer, primary_key=True)
37-
title = db.Column(db.String, unique=True, nullable=False)
38-
content = db.Column(db.Text,nullable=False)
39-
date =db.Column(db.Date)
33+
title = db.Column(db.String, nullable=False)
34+
content = db.Column(db.Text,nullable=False)
35+
date =db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
4036
user_id = db.Column(db.Integer, db.ForeignKey("user.id"), nullable=False)
4137

4238

43-
44-
4539
# Create a new user
46-
@app.route("/user", methods=['POST'])
40+
@app.route("/user", methods=["POST"])
4741
def create_user():
4842

4943
data = request.get_json()
5044
new_user = User(
51-
fname=data["fname"],
52-
lname=data["lname"],
53-
username=data["username"],
54-
dob=data["dob"]
45+
fname=data["fname"],
46+
lname=data["lname"],
47+
username=data["username"],
48+
dob=data["dob"],
5549
)
5650

5751
db.session.add(new_user)
5852
db.session.commit()
5953

6054
return jsonify({"message": "user created"}), 200
6155

62-
@app.route("/user/descending_id", methods=['GET'])
63-
def get_all_users_descending():
64-
pass
6556

66-
@app.route("/user/ascending_id", methods=['GET'])
57+
@app.route("/user/descending_id", methods=["GET"])
58+
def get_all_users_descending():
59+
users = User.query.all()
60+
all_users_ll = linked_list.LinkedList()
61+
62+
for user in users:
63+
all_users_ll.insert_begining(
64+
{
65+
"id": user.id,
66+
"first name": user.fname,
67+
"last name": user.lname,
68+
"username": user.username,
69+
"date of birth": user.dob,
70+
}
71+
)
72+
return jsonify(all_users_ll.to_list()), 200
73+
74+
75+
@app.route("/user/ascending_id", methods=["GET"])
6776
def get_all_users_ascending():
68-
pass
69-
70-
@app.route("/user/<user_id>", methods=['GET'])
77+
users = User.query.all()
78+
all_users_ll = linked_list.LinkedList()
79+
80+
for user in users:
81+
all_users_ll.insert_end(
82+
{
83+
"id": user.id,
84+
"first name": user.fname,
85+
"last name": user.lname,
86+
"username": user.username,
87+
"date of birth": user.dob,
88+
}
89+
)
90+
return jsonify(all_users_ll.to_list()), 200
91+
92+
93+
@app.route("/user/<user_id>", methods=["GET"])
7194
def get_user(user_id):
72-
pass
95+
users = User.query.all()
96+
all_users_ll = linked_list.LinkedList()
97+
98+
for user in users:
99+
all_users_ll.insert_begining(
100+
{
101+
"id": user.id,
102+
"first name": user.fname,
103+
"last name": user.lname,
104+
"username": user.username,
105+
"date of birth": user.dob,
106+
}
107+
)
108+
109+
user = all_users_ll.get_user_by_id(user_id)
110+
111+
return jsonify(user), 200
112+
73113

74-
@app.route("/user/<user_id>", methods=['DELETE'])
114+
@app.route("/user/<user_id>", methods=["DELETE"])
75115
def delete_user(user_id):
76-
pass
116+
user = User.query.filter_by(id=user_id).first()
117+
db.session.delete(user)
118+
db.session.commit()
119+
120+
return jsonify({}), 204
77121

78-
@app.route("/blog_post/<user_id>", methods=['POST'])
122+
123+
@app.route("/blog_post/<user_id>", methods=["POST"])
79124
def create_blog_post(user_id):
80125
pass
81126

82-
@app.route("/user/<user_id>", methods=['GET'])
127+
128+
@app.route("/user/<user_id>", methods=["GET"])
83129
def get_all_blog_posts(user_id):
84130
pass
85131

86132

87-
@app.route("/blog_post/<blog_post_id>", methods=['GET'])
133+
@app.route("/blog_post/<blog_post_id>", methods=["GET"])
88134
def get_one_blog_post(blog_post_id):
89135
pass
90136

91137

92-
@app.route("/blog_post/<blog_post_id>", methods=['DELETE'])
138+
@app.route("/blog_post/<blog_post_id>", methods=["DELETE"])
93139
def delete_blog_post(blog_post_id):
94140
pass
95141

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