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app.py
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app.py
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from flask import Flask, render_template, request, redirect, url_for
import psycopg2
from config import config
app = Flask(__name__)
def connect():
connection = None
try:
params = config()
connection = psycopg2.connect(**params)
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if connection is not None:
connection.close()
# routing the application
@app.route("/")
def application():
return render_template('login.html')
def check_credentials(username, password):
try:
# Get database connection settings from database.ini
params = config()
# Connect to the database
conn = psycopg2.connect(**params)
cursor = conn.cursor()
# Query the database to check if the credentials are valid
cursor.execute("SELECT * FROM users WHERE u_name = %s AND u_password = %s", (username, password))
user = cursor.fetchone()
# Close database connection
cursor.close()
conn.close()
return user is not None # Return True if user exists, False otherwise
except (Exception, psycopg2.DatabaseError) as e:
print("Error connecting to the database:", e)
return False
def fetch_data_Gloves():
try:
# Get database connection settings from database.ini
params = config()
# Connect to the database
conn = psycopg2.connect(**params)
cursor = conn.cursor()
# Query the database to fetch all rows from the Gloves_Maker table
cursor.execute("SELECT * FROM Gloves")
# Fetch all rows and store them in a list of dictionaries
products = []
for row in cursor.fetchall():
maker = {
'name': row[0],
'unit_address': row[1],
'contact_no': row[2]
}
products.append(maker)
# Close database connection
cursor.close()
conn.close()
return products
except (Exception, psycopg2.DatabaseError) as e:
print("Error connecting to the database:", e)
return None
def fetch_data():
try:
# Get database connection settings from database.ini
params = config()
# Connect to the database
conn = psycopg2.connect(**params)
cursor = conn.cursor()
# Query the database to fetch all rows from the Gloves_Maker table
cursor.execute("SELECT * FROM Gloves_Maker")
makers = []
for row in cursor.fetchall():
maker = {
'name': row[1],
'unit_address': row[2],
'contact_no': row[4]
}
makers.append(maker)
# Close database connection
cursor.close()
conn.close()
return makers
except (Exception, psycopg2.DatabaseError) as e:
print("Error connecting to the database:", e)
return None
def product_fetch_data():
try:
# Get database connection settings from database.ini
params = config()
# Connect to the database
conn = psycopg2.connect(**params)
cursor = conn.cursor()
# Query the database to fetch all rows from the Gloves_Maker table
cursor.execute("SELECT * FROM Gloves")
details = cursor.fetchall()
cursor.close()
conn.close()
print(details[0])
return details
except (Exception, psycopg2.DatabaseError) as e:
print("Error connecting to the database:", e)
return None
def insert_product(product_name, size, material, colour, description):
try:
params = config()
conn = psycopg2.connect(**params)
cursor = conn.cursor()
cursor.execute("INSERT INTO Gloves (P_name, Size, Material, Colour, Description) VALUES (%s, %s, %s, %s, %s)",
(product_name, size, material, colour, description))
conn.commit()
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
cursor.close()
conn.close()
# Function to delete an item from the database
def delete_item_from_database(item_id):
try:
params = config()
conn = psycopg2.connect(**params)
cursor = conn.cursor()
cursor.execute("DELETE FROM Gloves WHERE P_ID = %s", (item_id,))
conn.commit()
except (Exception, psycopg2.DatabaseError) as e:
print("Error deleting item from the database:", e)
finally:
cursor.close()
conn.close()
def fetch_order_history_data():
try:
# Get database connection settings from database.ini
params = config()
# Connect to the database
conn = psycopg2.connect(**params)
cursor = conn.cursor()
cursor.execute("SELECT * FROM Gloves_Order_History ")
result = cursor.fetchall()
print(result[0])
return result
except (Exception, psycopg2.DatabaseError) as e:
print("Error deleting item from the database:", e)
finally:
cursor.close()
conn.close()
@app.route('/Home_Page', methods=['POST'])
def button_click():
username = request.form['u']
password = request.form['p']
if check_credentials(username, password):
return render_template('index.html')
else:
return "Invalid credentials.", 400
@app.route('/gloves/products')
def gloves_products():
data = fetch_data_Gloves()
return render_template('Gloves_product_window.html', products=data)
@app.route('/Add_Product.html')
def add_product():
return render_template('Add_Product.html')
@app.route('/gloves/products', methods=['POST'])
def save_product():
if request.method == 'POST':
# Retrieve form data
product_name = request.form['product_name']
product_id = request.form['product_id']
maker = request.form['maker']
material = request.form['material']
colour = request.form['colour']
insert_product(product_name, product_id, maker, material, colour)
return redirect(url_for('gloves_products'))
@app.route('/Delete_Product.html')
def delete_product():
data = product_fetch_data()
return render_template('Delete_Product.html', Gloves=data)
@app.route('/delete_item', methods=['POST','GET'])
def delete_item():
if request.method == 'POST':
item_id = request.form['delete_item']
print(item_id)
delete_item_from_database(item_id) # Call the function to delete the item from the database
return redirect(url_for('gloves_products')) # Redirect to the Gloves_product_window.html page
@app.route('/gloves/makers')
def gloves_makers():
data = fetch_data()
return render_template('Gloves_maker_window.html', makers=data)
@app.route('/order_history', methods = ['GET', 'POST'])
def order_history():
data = fetch_order_history_data()
print(data)# Function to fetch data from the Gloves_Order_History table
return render_template('Gloves_Order_History.html', data=data)
if __name__ == "__main__":
app.run(host='0.0.0.0', debug=True)
connect()