Added comments

Backend/routes/product.py

@@ -3,26 +3,32 @@ from flask import jsonify
 from utils.helpers import sql_product_to_json
 
 def get_product_by_id(product_id):
+		# Get the specific product ID
 		cur = mysql.connection.cursor()
 		cur.execute('''
-				SELECT product.product_id, product.name, product.description, product.price, product.stock_quantity FROM product
+				SELECT product.product_id, product.name, product.description, product.price, product.stock_quantity, brand.name, brand.description
+				FROM product INNER JOIN brand ON product.brand_id = brand.brand_id
 				WHERE product.product_id = %s
 		''', (product_id,))
 
 		products = cur.fetchall()
 		cur.close()
 
+		# Check that the product exists
 		if len(products) <= 0:
 				return jsonify({"message": "Product not found"}), 404
 
+		# Check that we only have one product.
 		if len(products) > 1:
 				return jsonify({"message": "Database error"}), 500
 
+		# Use function to turn it into a json style object
 		jsonProduct = sql_product_to_json(products)[0]
 
 		return jsonify(jsonProduct)
 
 def get_product_all():
+		# Get all the products
 		cur = mysql.connection.cursor()
 		cur.execute('''
 				SELECT product.product_id, product.name, product.description, product.price, product.stock_quantity FROM product
@@ -31,6 +37,7 @@ def get_product_all():
 		products = cur.fetchall()
 		cur.close()
 
+		# Turn them all into json products
 		jsonProducts = sql_product_to_json(products)
 
 		return jsonProducts