def login():
if current_user.is_authenticated:
return redirect(url_for('main.home'))
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(
email=form.email.data).first() #Returns None
# if no user is found
if user and bcrypt.check_password_hash(
user.password, form.password.data): #If user is
# found and the passwords match
login_user(user, remember=form.remember.data) #If the user checked
# the Remember Me box, that information is stored in form.remember
next_page = request.args.get(
'next') #This allows us to redirect to
# the intended page after being forced to login
# request.args is a dictionary, so using the method .get() returns
# the key if it is present but returns None if not. This means no
# KeyError is raised if the key (next) is not in the dictionary
return redirect(next_page) if next_page else redirect(
url_for('main.home')) #Ternary conditional
else:
flash('Incorrect Login. Please check email and password', 'danger')
return render_template('login.html', title='Login', form=form)
def login():
if current_user.is_authenticated:
return redirect(url_for('main.share'))
form = LoginForm()
if form.validate_on_submit():
user = User.query.filter_by(email=form.email.data).first()
if user and bcrypt.check_password_hash(user.password, form.password.data):
login_user(user, remember=form.remember.data)
next_page = request.args.get('next')
return redirect(next_page) if next_page else redirect(url_for('main.index'))
else:
flash('Login Unsuccessful. Please check email and password', 'danger')
return render_template('login.html', title='Login', form=form)