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app.py
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app.py
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import os
from flask import Flask, render_template, url_for, request, redirect
from flask_sqlalchemy import SQLAlchemy
from datetime import datetime
from flask_wtf import FlaskForm
from wtforms import StringField
from wtforms.validators import DataRequired
app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///main.db'
db = SQLAlchemy(app)
SECRET_KEY = os.urandom(32)
app.config['SECRET_KEY'] = SECRET_KEY
class MyForm(FlaskForm):
content = StringField('content', validators=[DataRequired()])
class Todo(db.Model):
id = db.Column(db.Integer, primary_key=True)
content = db.Column(db.String(200), nullable=False)
data_created = db.Column(db.DateTime, default=datetime.utcnow)
def __repr__(self):
return '<Task %r> ' % self.id
@app.route('/', methods=['GET'])
def index():
tasks = Todo.query.order_by(Todo.data_created).all()
return render_template('index.html', tasks = tasks)
@app.route('/add', methods=['GET','POST'])
def submit():
form = MyForm()
if form.validate_on_submit():
task_content = request.form['content']
new_task = Todo(content=task_content)
try:
db.session.add(new_task)
db.session.commit()
return redirect('/')
except:
return 'Error when add data'
return redirect('/')
return render_template('add.html', form=form)
@app.route('/show/<int:id>')
def show(id):
task_to_show = Todo.query.get_or_404(id)
return render_template('show.html', task = task_to_show)
@app.route('/update/<int:id>', methods=['GET', 'POST'])
def update(id):
task = Todo.query.get_or_404(id)
form = MyForm(obj=task)
if request.method == 'POST' and form.validate_on_submit():
task.content = request.form['content']
try:
db.session.commit()
return redirect('/')
except:
return 'Error when add data'
else:
return render_template('update.html', task=task, form=form)
@app.route('/delete/<int:id>')
def delete(id):
task_to_delete = Todo.query.get_or_404(id)
try:
db.session.delete(task_to_delete)
db.session.commit()
return redirect('/')
except:
return 'Error when delete data'
if __name__ == "__main__":
app.run(debug=True)