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app.py
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app.py
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from flask import Flask, request, render_template, redirect, flash, jsonify, session
from flask_debugtoolbar import DebugToolbarExtension
from models import db, connect_db, User, Feedback
from forms import RegisterUserForm, LoginForm, FeedbackForm, DeleteForm
from werkzeug.exceptions import Unauthorized
app = Flask(__name__)
# calling Flask class
app.config['SQLALCHEMY_DATABASE_URI'] = 'postgresql:///flask_feedback'
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
app.config['SQLALCHEMY_ECHO'] = True
app.config['SECRET_KEY'] = "key9876"
app.config['DEBUG_TB_INTERCEPT_REDIRECTS'] = False
debug = DebugToolbarExtension(app)
connect_db(app)
@app.route('/')
def show_home():
return redirect('/register')
@app.route('/register', methods=["GET", "POST"])
def handle_register_form():
form = RegisterUserForm()
# If POST & form valid
if form.validate_on_submit():
username = form.username.data
password = form.password.data
email = form.email.data
first_name = form.first_name.data
last_name = form.last_name.data
new_user = User.register(username, password, email, first_name, last_name)
session['username'] = new_user.username
return redirect(f"/users/{username}")
return render_template('register.html', form=form)
@app.route('/login', methods=["GET", "POST"])
def handle_login():
if "username" in session:
return redirect(f"/users/{session['username']}")
form = LoginForm()
if form.validate_on_submit():
username = form.username.data
password = form.password.data
user = User.authenticate(username, password) # <User> or False
if user:
session['username'] = username
return redirect(f"/users/{username}")
else:
form.username.errors = ["Invalid username/password."]
return render_template("login.html", form=form)
return render_template("login.html", form=form)
@app.route('/users/<username>/delete', methods=["POST"])
def delete_user(username):
"""Delete user from database, delete all feedback, remove from session """
if 'username' not in session or username != session['username']:
raise Unauthorized()
user = User.query.get(username)
db.session.delete(user)
db.session.commit()
session.pop('username')
flash(f'{username} deleted', 'success')
return redirect('/')
@app.route('/users/<username>')
def show_secret_page(username):
"""show logged in user, their user info"""
if 'username' in session:
user = User.query.get(username)
form = DeleteForm()
return render_template('show_user.html', user=user, form=form)
else:
raise Unauthorized()
@app.route('/logout')
def logout_user():
"""clear session and redirect"""
if 'username' in session:
session.pop('username')
flash('You have successfully logged out', 'success')
return redirect('/')
@app.route('/users/<username>/feedback/add', methods=["GET", "POST"])
def handle_add_feedbackform(username):
form = FeedbackForm()
if 'username' not in session:
flash('Please login first', 'danger')
return redirect('/register')
if form.validate_on_submit():
title = form.title.data
content = form.content.data
new_feedback = Feedback(title=title, content=content, username=username)
db.session.add(new_feedback)
db.session.commit()
return redirect(f"/users/{username}")
return render_template('add_feedback.html', form=form)
@app.route('/feedback/<int:feedback_id>/update', methods=["GET", "POST"])
def handle_update_feedback(feedback_id):
"""Show update-feedback form and process it."""
feedback = Feedback.query.get(feedback_id)
if 'username' not in session or feedback.username != session['username']:
raise Unauthorized()
form = FeedbackForm(obj=feedback_id)
if form.validate_on_submit():
feedback.title = form.title.data
feedback.content = form.content.data
db.session.commit()
return redirect(f"/users/{feedback.username}")
return render_template('edit_feedback.html', form=form, feedback=feedback)
@app.route('/feedback/<int:feedback_id>/delete', methods=["POST"])
def handle_delete_feedback(feedback_id):
"""Delete feedback."""
feedback = Feedback.query.get(feedback_id)
if 'username' not in session or feedback.username != session['username']:
raise Unauthorized()
form = DeleteForm()
if form.validate_on_submit():
db.session.delete(feedback)
db.session.commit()
return redirect(f"/users/{feedback.username}")
return render_template('edit_feedback.html', form=form, feedback=feedback)
@app.errorhandler(401)
def show_unauthorized(e):
"""show 401 Unauthorized """
return render_template('401.html'), 401