Tacocat Code Challenge won't pass. "Bummer! Try Again!"

from flask import Flask, g, render_template, flash, redirect, url_for
from flask.ext.bcrypt import check_password_hash
from flask.ext.login import (LoginManager, login_user,
                             logout_user, login_required, current_user)

import forms
import models

DEBUG = True
PORT = 8000
HOST = '0.0.0.0'

app = Flask(__name__)
app.secret_key = 'youdontknowmysecretkey'

login_manager = LoginManager()
login_manager.init_app(app)
login_manager.login_view = 'login'

@login_manager.user_loader
def load_user(userid):
  try:
      return models.User.get(models.User.id == userid)
  except models.DoesNotExist:
      return None

@app.before_request
def before_request():
  """Connect to the database before each request."""
  g.db = models.DATABASE
  g.db.connect()
  g.user = current_user

@app.after_request
def after_request(response):
  """Close the database connection after each request."""
  g.db.close
  return response

@app.route('/register', methods=('GET', 'POST'))
def register():
  form = forms.RegisterForm()
  if form.validate_on_submit():
      flash("Yay, you registered!", "success")
      models.User.create_user(
          email = form.email.data,
          password = form.password.data
      )
      return redirect(url_for('index'))
  return render_template('register.html', form=form)

@app.route('/login', methods=('GET', 'POST'))
def login():
  form = forms.LoginForm()
  if form.validate_on_submit():
    try:
        user = models.User.get(models.User.email == form.email.data)
    except models.DoesNotExist:
        flash("Email is incompatible", "error")
    else:
        if check_password_hash(user.password, form.password.data):
            login_user(user)
            flash("You are logged in", "success")
            return redirect(url_for('index'))
        else:
            flash("Password does not match", "error")
  return render_template('login.html', form=form)

@app.route('/logout')
@login_required
def logout():
    logout_user()
    flash("You've been logged out! Come back soon!", "success")
    return redirect(url_for('index'))

@app.route('/taco', methods=('GET','POST'))
@login_required
def taco():
    form = forms.TacoForm()
    if form.validate_on_submit():
        models.Taco.create(user = g.user._get_current_object(),
                           protein = form.protein.data,
                           shell = form.shell.data,
                           cheese = form.cheese.data,
                           extras = form.extras.data.strip()
                          )
        flash("Your taco has been added!!", "success")
        return redirect(url_for('index'))
    return render_template('taco.html', form=form)


@app.route('/')
def index():
  tacos = models.Taco.select().limit(10)
  return render_template('index.html', tacos=tacos)




if __name__== '__main__':
  models.initialize()
  try:
    with models.DATABASE.transaction():
        models.User.create_user(
          email = 'billy@example.com',
          password = 'password'
        )
  except ValueError:
    pass
  #app.run(debug=DEBUG, host=HOST, port=PORT)