Inital work on better product fetching

app/__init__.py

@@ -5,11 +5,12 @@ app = Flask(__name__)
 jwt_manager = JWTManager(app)
 
 def create_app():
-	from app.api import bp, bp_errors, bp_product, bp_user
+	from app.api import bp, bp_errors, bp_product, bp_user, bp_cart
 	app.register_blueprint(bp)
 	app.register_blueprint(bp_errors)
 	app.register_blueprint(bp_product)
 	app.register_blueprint(bp_user)
+	app.register_blueprint(bp_cart)
 
 	from app.config import FlaskTesting, FlaskProduction
 	app.config.from_object(FlaskTesting)

app/api/__init__.py

@@ -4,5 +4,6 @@ bp_errors = Blueprint('errors', __name__)
 bp = Blueprint('api', __name__)
 bp_product = Blueprint('product', __name__, url_prefix="/product")
 bp_user = Blueprint('user', __name__, url_prefix="/user")
+bp_cart = Blueprint('cart', __name__, url_prefix="/cart")
 
 from . import routes

app/api/routes/__init__.py

@@ -1 +1 @@
-from . import main_routes,error_routes, product_routes, user_routes
+from app.api.routes import main_routes, error_routes, product_routes, user_routes, cart_routes

app/api/routes/cart_routes.py

@@ -0,0 +1,16 @@
+from flask import jsonify, abort, request
+from flask_jwt_extended import jwt_required, get_jwt_identity
+
+from app.api import bp_cart
+
+from app.services.cart_service import CartService
+
+@bp_cart.route('add/<int:product_id>', methods=['PUT'])
+@jwt_required()
+def add_to_cart(product_id: int):
+	user_id = get_jwt_identity()
+	count = request.args.get('count', default=1, type=int)
+	
+	result, status_code = CartService.add_to_cart(user_id, product_id, count)
+
+	return result, status_code

app/api/routes/error_routes.py

@@ -1,4 +1,4 @@
-from .. import bp_errors
+from app.api import bp_errors
 
 @bp_errors.app_errorhandler(400)
 def bad_request(e):

app/api/routes/main_routes.py

@@ -1,6 +1,6 @@
 from flask import jsonify, abort
 
-from .. import bp
+from app.api import bp
 
 @bp.route('/')
 def hello():

app/api/routes/product_routes.py

@@ -5,58 +5,14 @@ from app.api import bp_product
 from app.services.product_service import ProductService
 
 @bp_product.route('/<int:id>', methods=['GET'])
-def all_product_info(id: int):
+def get_product_info(id: int):
-	result = ProductService.get_all_info(id)
+	fields = ['name', 'price', 'image', 'image_name', 'seller']
 
-	if result is not None:
+	fields_param = request.args.get('fields')
-		return jsonify(result)
+	requested_fields = []
-	else:
+	
-		abort(404)
+	return abort(501)
 
-@bp_product.route('/<int:id>/name', methods=['GET'])
-def get_name(id: int):
-	result = ProductService.get_name(id)
-
-	if result is not None:
-		return jsonify({"name": result})
-	else:
-		return abort(404)
-
-@bp_product.route('/<int:id>/manufacturer', methods=['GET'])
-def get_manufacturer(id: int):
-	result = ProductService.get_manufacturer(id)
-
-	if result is not None:
-		return jsonify({"name": result})
-	else:
-		return abort(404)
-
-@bp_product.route('/<int:id>/price', methods=['GET'])
-def get_price(id: int):
-	result = ProductService.get_price(id)
-
-	if result is not None:
-		return jsonify({"price": result})
-	else:
-		return abort(404)
-
-@bp_product.route('/<int:id>/image', methods=['GET'])
-def get_image(id: int):
-	result = ProductService.get_image(id)
-
-	if result is not None:
-		return jsonify({"image": result})
-	else:
-		return abort(404)
-
-@bp_product.route('/<int:id>/image_name', methods=['GET'])
-def get_image_name(id: int):
-	result = ProductService.get_image_name(id)
-
-	if result is not None:
-		return jsonify({"image_name": result})
-	else:
-		return abort(404)
 
 @bp_product.route('/create', methods=['POST'])
 def create_product_listing():

app/services/cart_service.py

@@ -0,0 +1,30 @@
+from mysql.connector import Error
+from typing import Tuple, Union
+
+from app.extensions import db_cursor, db_connection
+
+class CartService:
+
+	@staticmethod
+	def add_to_cart(user_id: str, product_id: int, count: int) -> Tuple[Union[dict, str], int]:
+		try:
+			with db_connection.cursor() as cursor:
+				db_connection.begin()
+
+				db_cursor.execute("select * from cart_item where cart_id = %s and product_id = %s", (user_id, product_id))
+
+				if db_cursor.rowcount != 0:
+					db_cursor.execute("update cart_item set count = count + %s where cart_id = %s and product_id = %s", (count, user_id, product_id))
+				else:
+					db_cursor.execute("insert into cart_item(cart_id, product_id, count) values (%s, %s, %s)", (user_id, product_id, count))
+
+				db_connection.commit()
+
+				return {"Success": "Successfully added to cart"}, 200
+		
+		except Error as e:
+			return {"Failed": f"Failed to add item to cart. {e}"}
+	
+	@staticmethod
+	def show_cart(user_id: str):
+		return None

app/services/product_service.py

@@ -1,44 +1,70 @@
 import base64
 
-from ..extensions import db_cursor as cursor
+from flask import abort
+from mysql.connector import Error
+
+from app.extensions import db_connection
 
 class ProductService:
 
 	@staticmethod
 	def get_name(product_id: int):
-		cursor.execute(f"select name from product where product.id = {product_id}")
+		db_cursor.execute(f"select name from product where product.id = {product_id}")
-		result = cursor.fetchone()
+
+		if db_cursor.rowcount != 1:
+			return abort(404)
+
+		result = db_cursor.fetchone()
 		return result['name']
 
 	@staticmethod
 	def get_manufacturer(product_id: int):
-		cursor.execute(f"select user.displayname as seller from product inner join user on product.seller_id = user.id where product.id = {product_id}")
+		db_cursor.execute(f"select user.displayname as seller from product inner join user on product.seller_id = user.id where product.id = {product_id}")
-		result = cursor.fetchone()
+
+		if db_cursor.rowcount != 1:
+			return abort(404)
+		
+		result = db_cursor.fetchone()
 		return result['seller']
 
 	@staticmethod
 	def get_price(product_id: int):
-		cursor.execute(f"select price_pc from product where product.id = {product_id}")
+		db_cursor.execute(f"select price_pc from product where product.id = {product_id}")
-		result = cursor['price_pc']
+
-		return result[0]
+		if db_cursor.rowcount != 1:
+			return abort(404)
+
+		result = db_cursor.fetchone()
+		return result['price_pc']
 
 	@staticmethod
 	def get_image(product_id: int):
-		cursor.execute(f"select image from product where product.id = {product_id}")
+		db_cursor.execute(f"select image from product where product.id = {product_id}")
-		result = cursor['image']
+		
-		return base64.b64encode(result[0]).decode('utf-8')
+		if db_cursor.rowcount != 1:
+			return abort(404)
+		
+		result = db_cursor.fetchone()
+		return base64.b64encode(result['image']).decode('utf-8')
 
 	@staticmethod
 	def get_image_name(product_id: int):
-		cursor.execute(f"select image_name from product where product.id = {product_id}")
+		db_cursor.execute(f"select image_name from product where product.id = {product_id}")
-		result = cursor['image_name']
+		
-		return result[0]
+		if db_cursor.rowcount != 1:
+			return abort(404)
+
+		result = db_cursor.fetchone()
+		return result['image_name']
 
 	@staticmethod
 	def get_all_info(product_id: int):
-		cursor.execute(f"select name, user.displayname as seller, price_pc, image_name, image from product inner join user on product.seller_id = user.id where product.id = {product_id}")
+		db_cursor.execute(f"select name, user.displayname as seller, price_pc, image_name, image from product inner join user on product.seller_id = user.id where product.id = {product_id}")
-		result = cursor.fetchone()
 
+		if db_cursor.rowcount != 1:
+			return abort(404)
+
+		result = db_cursor.fetchone()
 		return {
 			"name": result['name'],
 			"seller": result['seller'],
@@ -48,5 +74,11 @@ class ProductService:
 		}
 
 	@staticmethod
-	def create_listing():
+	def create_listing(name: str, seller_id: str, price: float, image_name: str, image):
-		print("asd")
+		try:
+			db_cursor.execute("insert into product(seller_id, name, price_pc, image, image_name) values (%s, %s, %s, %s, %s)", (seller_id, name, price, image, image_name))
+			db_connection.commit()
+		except Error as e:
+			return {"Failed": f"Failed to create product. {e}"}, 400
+		
+		return {"Success", "Successfully created new product listing"}, 200

shop.sql

@@ -18,8 +18,8 @@ create table user_role(
 	role varchar(32) not null unique
 );
 
-insert into user_role(role) values ('normal')
+insert into user_role(id, role) values (1, 'normal');
-insert into user_role(role) values ('admin')
+insert into user_role(id, role) values (2, 'admin');
 
 create table user_statistics(
 	id int primary key,
@@ -77,7 +77,6 @@ create table purchase_item(
 	foreign key (product_id) references product(id)
 );
 
-delimiter //
 create trigger after_user_insert
 after insert
 on user for each row
@@ -85,10 +84,7 @@ begin
 	insert into user_statistics(id) values (new.id);
 	insert into cart(id) values (new.id);
 end;
-//
-delimiter;
 
-delimiter //
 create trigger after_user_delete
 after delete
 on user for each row
@@ -96,10 +92,7 @@ begin
 	delete from user_statistics where id = old.id;
 	delete from cart where id = old.id;
 end;
-//
-delimiter;
 
-delimiter //
 create trigger after_cart_insert
 after insert
 on cart_item for each row
@@ -112,10 +105,7 @@ begin
 	)
 	where id = new.cart_id;
 end;
-//
-delimiter;
 
-delimiter //
 create trigger after_cart_delete
 after delete
 on cart_item for each row
@@ -129,10 +119,7 @@ begin
 	)
 	where id = old.cart_id;
 end;
-//
-delimiter;
 
-delimiter //
 create trigger calculate_price_subtotal
 before insert on cart_item
 for each row
@@ -142,6 +129,4 @@ begin
 		from product p
 		where p.id = new.product_id
 	);
-end;
+end;
-//
-delimiter;