“How can I implement a scheduling feature in Python for a Quran classes app where users can create, update, and delete personal schedules for Quranic lessons? The app should allow the user to set daily or weekly reminders for their lessons, track their learning progress, and notify them if they’ve missed a lesson. Additionally, I need help creating a backend system to store and retrieve user schedules from a database (such as SQLite or PostgreSQL), and send notifications (either email or in-app) for upcoming lessons. How can I integrate this with Python libraries like APScheduler for scheduling tasks and SQLAlchemy for database management?”
from apscheduler.schedulers.background import BackgroundScheduler
from apscheduler.events import EVENT_JOB_EXECUTED, EVENT_JOB_ERROR
import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
import sqlalchemy
from sqlalchemy import create_engine, Column, Integer, String, DateTime
from sqlalchemy.orm import sessionmaker
from datetime import datetime
Database setup with SQLAlchemy
DATABASE_URL = “sqlite:///quran_schedule.db” # SQLite database for simplicity
engine = create_engine(DATABASE_URL)
Session = sessionmaker(bind=engine)
Define Schedule Model
class Schedule(sqlalchemy.ext.declarative.declarative_base()):
tablename = ‘schedules’
id = Column(Integer, primary_key=True)
user_id = Column(Integer, nullable=False)
lesson_date = Column(DateTime, nullable=False)
subject = Column(String, nullable=False)
Create table if not exists
Schedule.metadata.create_all(engine)
Function to send email reminder
def send_email(lesson):
message = MIMEMultipart()
message["From"] = sender_email
message["To"] = receiver_email
message["Subject"] = f"Reminder: Quran Class on {lesson.lesson_date}"
body = f"Dear Student,\n\nThis is a reminder for your Quran lesson on {lesson.lesson_date} about {lesson.subject}. Don't forget to attend!\n\nBest Regards"
message.attach(MIMEText(body, "plain"))
# Send the email
with smtplib.SMTP_SSL("smtp.gmail.com", 465) as server:
server.login(sender_email, password)
server.sendmail(sender_email, receiver_email, message.as_string())
Function to add a lesson schedule
def add_lesson_schedule(user_id, lesson_date, subject):
session = Session()
new_lesson = Schedule(user_id=user_id, lesson_date=lesson_date, subject=subject)
session.add(new_lesson)
session.commit()
session.close()
# Schedule the lesson reminder
scheduler.add_job(send_email, 'date', run_date=lesson_date, args=[new_lesson])
Setup APScheduler
scheduler = BackgroundScheduler()
scheduler.start()
Example usage
Add a lesson schedule (For a user with ID 1, lesson on January 5, 2025)
lesson_date = datetime(2025, 1, 5, 10, 0) # Set for 10:00 AM on January 5, 2025
add_lesson_schedule(1, lesson_date, “Surah Al-Fatiha”)
Shutdown scheduler when the app stops
try:
while True:
pass
except (KeyboardInterrupt, SystemExit):
scheduler.shutdown()