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mainnowe.py

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+from flask import Flask, render_template, request, redirect, url_for
+import sqlite3
+
+app = Flask(__name__)
+
+def initialize_database():
+    conn = sqlite3.connect('todo.db')
+    c = conn.cursor()
+    c.execute('''CREATE TABLE IF NOT EXISTS tasks
+                 (id INTEGER PRIMARY KEY AUTOINCREMENT,
+                 task TEXT NOT NULL,
+                 completed INTEGER DEFAULT 0)''')
+    conn.commit()
+    conn.close()
+
+def add_task(task):
+    conn = sqlite3.connect('todo.db')
+    c = conn.cursor()
+    c.execute("INSERT INTO tasks (task) VALUES (?)", (task,))
+    conn.commit()
+    conn.close()
+
+def delete_task(task_id):
+    conn = sqlite3.connect('todo.db')
+    c = conn.cursor()
+    c.execute("DELETE FROM tasks WHERE id=?", (task_id,))
+    conn.commit()
+    conn.close()
+
+def view_tasks():
+    conn = sqlite3.connect('todo.db')
+    c = conn.cursor()
+    c.execute("SELECT * FROM tasks WHERE completed=0")
+    tasks = c.fetchall()
+    conn.close()
+   
+    tasks.sort(key=lambda task: task[1])
+    return tasks
+
+def view_tasks_complited():
+    conn = sqlite3.connect('todo.db')
+    c = conn.cursor()
+    c.execute("SELECT * FROM tasks WHERE completed=1")
+    tasks = c.fetchall()
+    conn.close()
+    return tasks
+
+def update_task(task_id, task=None):
+    conn = sqlite3.connect('todo.db')
+    c = conn.cursor()
+    if task:
+        c.execute("UPDATE tasks SET task=? WHERE id=?", (task, task_id))
+    conn.commit()
+    conn.close()
+
+def complete_task(task_id):
+    conn = sqlite3.connect('todo.db')
+    c = conn.cursor()
+    c.execute("UPDATE tasks SET completed=? WHERE id=?", (1, task_id))
+    conn.commit()
+    conn.close()
+
+initialize_database()
+
+@app.route('/')
+def index():
+    tasks = view_tasks()
+    completed_tasks = view_tasks_complited() 
+    return render_template('index.html', tasks=tasks, completed_tasks=completed_tasks)
+
+@app.route('/add', methods=['POST'])
+def add():
+    task = request.form['task']
+    add_task(task)
+    return redirect(url_for('index'))
+
+@app.route('/update/<int:task_id>', methods=['POST'])
+def update(task_id):
+    task = request.form['task']
+    update_task(task_id, task)
+    return redirect(url_for('index'))
+
+@app.route('/delete/<int:task_id>', methods=['POST'])
+def delete(task_id):
+    delete_task(task_id)
+    return redirect(url_for('index'))
+
+@app.route('/complete/<int:task_id>', methods=['POST'])
+def complete(task_id):
+    complete_task(task_id)
+    return redirect(url_for('index'))
+
+if __name__ == '__main__':
+    app.run(debug=True)
+