- version : 0.1

- description : initialize the app

app.py

@@ -0,0 +1,71 @@
+import sqlite3
+from flask import Flask, render_template, request, redirect, url_for
+
+# Create a Flask application instance
+app = Flask(__name__)
+
+# --- Database Functions ---
+
+def get_db_connection():
+    """Creates and returns a connection to the SQLite database."""
+    conn = sqlite3.connect('students.db')
+    # Return rows as dictionaries, so we can access columns by name
+    conn.row_factory = sqlite3.Row
+    return conn
+
+def init_db():
+    """Initializes the database and creates the 'students' table if it doesn't exist."""
+    conn = get_db_connection()
+    # Use a 'with' statement to automatically handle closing the connection
+    with conn:
+        conn.execute('''
+            CREATE TABLE IF NOT EXISTS students (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                name TEXT NOT NULL,
+                parent_name TEXT NOT NULL,
+                phone_number TEXT NOT NULL
+            )
+        ''')
+    print("Database initialized and 'students' table created.")
+
+# Command to initialize the database from the command line: flask init-db
+@app.cli.command('init-db')
+def init_db_command():
+    """Clear existing data and create new tables."""
+    init_db()
+
+
+# --- App Routes ---
+
+@app.route('/')
+def index():
+    """Renders the main page with the list of students."""
+    conn = get_db_connection()
+    students = conn.execute('SELECT * FROM students').fetchall()
+    conn.close()
+    # The 'students' variable is passed to the HTML template
+    return render_template('index.html', students=students)
+
+@app.route('/add', methods=['POST'])
+def add_student():
+    """Handles the form submission for adding a new student."""
+    # Get data from the form submitted in index.html
+    name = request.form['name']
+    parent_name = request.form['parent_name']
+    phone_number = request.form['phone_number']
+
+    # Insert the new student record into the database
+    conn = get_db_connection()
+    conn.execute('INSERT INTO students (name, parent_name, phone_number) VALUES (?, ?, ?)',
+                 (name, parent_name, phone_number))
+    conn.commit()
+    conn.close()
+
+    # Redirect back to the main page to see the updated list
+    return redirect(url_for('index'))
+
+if __name__ == '__main__':
+    # Initialize the database when the script is run directly
+    init_db()
+    # Run the Flask development server
+    app.run(debug=True)