Not displaying data from db correctly in index.html page

import datetime

from flask.ext.bcrypt import generate_password_hash
from flask.ext.login import UserMixin
from peewee import *


DATABASE = SqliteDatabase('taco.db')


class User(UserMixin, Model):
  email = CharField(unique=True)
  password = CharField(max_length=100)
  joined_at = DateTimeField(default=datetime.datetime.now)

  class Meta:
    database = DATABASE
    order_by = ('-joined_at', )


  @classmethod
  def create_user(cls, email, password):
    try:
      with DATABASE.transaction():
        cls.create(
          email=email,
          password=generate_password_hash(password)
        )
    except IntegrityError:
      raise ValueError("User already exists.")


class Taco(Model):
  timestamp = DateTimeField(default=datetime.datetime.now)
  user = ForeignKeyField(
    rel_model=User,
    related_name='tacos'
  )
  protein = CharField(max_length=100),
  shell = CharField(max_length=100),
  cheese = BooleanField(default=False),
  extras = CharField(max_length=255)

  class Meta:
    database = DATABASE
    order_by = ('-timestamp',)


def initialize():
  DATABASE.connect()
  DATABASE.create_tables([User], safe=True)
  DATABASE.close()

from flask_wtf import Form
from wtforms import StringField, PasswordField, BooleanField
from wtforms.validators import (DataRequired, Regexp, ValidationError, Email, Length, EqualTo)

from models import User


def email_exists(form, field):
  if User.select().where(User.email == field.data).exists():
    raise ValidationError('User with that email already exists')


class RegisterForm(Form):
  email = StringField(
    'Email',
    validators=[
      DataRequired(),
      Email(),
      email_exists
    ]
  )
  password = PasswordField(
    'Password',
    validators=[
      DataRequired(),
      Length(min=8),
      EqualTo('password2', message='Passwords must match')
    ]
  )
  password2 = PasswordField(
    'Confirm Password',
    validators=[DataRequired()]
  )


class LoginForm(Form):
  email = StringField(
    'Email', validators=[DataRequired(), Email()]
  )
  password = PasswordField(
    'password', validators=[DataRequired()]
  )


class TacoForm(Form):
  protein = StringField(
    'Protein',
    validators=[
      DataRequired(),
      Regexp(
        r'^[a-zA-Z]+$',
        message=("That is not a protein, use letters only")
      )
    ]
  )
  shell = StringField(
    'Shell',
    validators=[
      DataRequired(),
      Regexp(
        r'^[a-zA-Z]+$',
        message=("That is not a shell, use letters only")
      )
    ]
  )
  cheese = BooleanField('Cheese')
  extras = StringField('Extras')

from flask import (Flask, g, render_template, flash,
                   redirect, url_for, abort)
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 = 'asdfasdfasf'

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():
  g.db = models.DATABASE
  g.db.connect()
  g.user = current_user


@app.after_request
def after_request(response):
  g.db.close()
  return response


@app.route('/register', methods=('GET', 'POST'))
def register():
  form = forms.RegisterForm()
  if form.validate_on_submit():
    flash('You are now 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 or password don't match", "error")
    else:
      if check_password_hash(user.password, form.password.data):
        login_user(user)
        return redirect(url_for('index'))
      else:
        flash("Email or password don't match", "error")
  return render_template('login.html', form=form)


@app.route('/logout')
@login_required
def logout():
  logout_user()
  flash("You are now Logged out!", "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
    )
    flash("Taco created!", "success")
    return redirect(url_for('index'))
  return render_template("taco.html", form=form)


@app.route('/')
def index():
  tacos = models.Taco.select().limit(30)
  return render_template('index.html', tacos=tacos)


if __name__ == '__main__':
  models.initialize()  
  app.run(debug=DEBUG, host=HOST, port=PORT)