convert forms to wtfforms

app.py

@@ -1,5 +1,6 @@
 import os
 import time
+from forms import TaskForm
 from datetime import datetime, date
 from flask import Flask, render_template, request, redirect, url_for
 from flask_sqlalchemy import SQLAlchemy
@@ -65,14 +66,15 @@ def tasks():
 
 @app.route('/task/new', methods=('GET', 'POST'))
 def newTask():
-    if request.method == 'POST':
-        task = Task(title=request.form['title'],
-                    description=request.form['description'],
+    form = TaskForm()
+    if form.validate_on_submit():
+        task = Task(title=form.title.data,
+                    description=form.description.data,
                     created_timestamp=int(time.time()))
         db.session.add(task)
         db.session.commit()
         return redirect(f'/task/{task.id}')
-    return render_template('newtask.html')
+    return render_template('newtask.html', form=form)
 
 @app.route('/task/<int:task_id>/')
 def task(task_id):
@@ -81,12 +83,14 @@ def task(task_id):
 
 @app.route('/task/<int:task_id>/edit', methods=('GET', 'POST'))
 def editTask(task_id):
+    form = TaskForm()
     task = Task.query.get_or_404(task_id)
-    if request.method == 'POST':
-        task.title = request.form['title']
-        task.description = request.form['description']
+    if form.validate_on_submit():
+        task.title=form.title.data
+        task.description=form.description.data
         db.session.commit()
-    return render_template('edittask.html', str=str, task=task, datetime=datetime, date=date)
+        return redirect(f'/task/{task_id}')
+    return render_template('edittask.html', task=task, form=form)
 @app.post('/task/<int:task_id>/delete')
 def delete_task(task_id):
     task = Task.query.get_or_404(task_id)