def login_index():
form = LoginForm()
if request.method == 'POST' and form.validate_on_submit():
user_name = form.username.data
password = form.password.data
remember_me = form.remember_me.data
user = query_user(user_name)
if user is not None and password == user['password']:
curr_user = User()
curr_user.id = user_name
login_user(curr_user, remember=True)
return redirect(request.args.get('next') or url_for('index'))
flash('用户名或密码错误！')
return render_template('login/login.html', title="Sign In", form=form)
