Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Build a Social Network with Flask Tacocat Challenge Tacocat!

Fill out the files with your finished code to pass the code challenge. Be sure to remove any app.run() calls

I keep getting a Bummer Try again error, and it doesnt state where the problem is. Please help

tacocat.py
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
HOST = '0.0.0.0'
PORT = 8000

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('/')
def index():
    try:
        tacos=models.Taco.select()
    except models.DoesNotExist:    
        return render_template('índex.html')
    else:
        return render_template('index.html', tacos=tacos)

@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'))
@app.route('/taco', methods=['POST'])
@login_required
def taco():
    form = forms.CreateTacoForm()
    if form.validate_on_submit():
        flash("You Successfully Created Your Taco", "success")
        models.Taco.create_taco(user=g.user._get_current_object(),
                           protein=form.protein.data,
                           shell=form.shell.data,
                           cheese=form.cheese.data,
                           extras=form.extras.data.strip()
                          )
        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
models.py
import datetime

from flask.ext.bcrypt import Bcrypt, generate_password_hash, check_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)

    class meta:
         database=DATABASE

    #def get_tacos(self):
        #return Taco.select().where(Taco.user == self)

    #def get_stream(self):
       # return Taco.select().where(
         # (Taco.user == self)
      #)

    @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):
    protein=CharField()
    shell=CharField()
    cheese=BooleanField(default=True)
    extras=TextField()
    user=ForeignKeyField(
        rel_model=User,
        related_name='tacos'
    )

    class meta:
        database = DATABASE

@classmethod
    def create_taco(cls, protein, shell, cheese, extras, user):
        with DATABASE.transaction():#this is something I had in my notes
            cls.create(
                protein=protein,
                shell=shell,
                cheese=cheese,
                extras=extras,
                user=user)

def initialize():
    DATABASE.connect()
    DATABASE.create_tables([User, Taco], safe=True)
    DATABASE.close()
forms.py
from flask_wtf import Form
from wtforms import StringField, PasswordField, BooleanField, TextField
from wtforms.validators import DataRequired, ValidationError, Email,
                               Length, EqualTo, Regexp

from models import User

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

class RegisterForm(Form):
    email=StringField(
        'Email',
        validators=[
            DataRequired(),
            Email(),
            email_exists,
      ])
    password=PasswordField(
        'Password',
        validators=[
            DataRequired(),
            Length(min=2),
            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()])
    shell =StringField('Shell', validators = [DataRequired()])
    cheese = BooleanField('Cheese')
    extras = TextAreaField("Any extras?")
templates/layout.html
<!doctype html>
<html>
  <head>
    <title>Tacocat</title>
    <link rel="stylesheet" href="/static/css/normalize.css">
    <link rel="stylesheet" href="/static/css/skeleton.css">
    <link rel="stylesheet" href="/static/css/tacocat.css">
  </head>
  <body>
    {% with messages=get_flashed_messages() %}
    {% if messages %}
        <div class="messages">
          {% for message in messages %}
          <div class="message">
            {{ message }}
          </div>
          {% endfor %}
        </div>
      {% endif %}
    {% endwith %}

    <div class="container">
      <div class="row">
        <div class="u-full-width">
          <nav class="menu">
            <!-- menu goes here -->
              {% if current_user.is_authenticated() %}
                <a href="{{ url_for('logout') }}" title="Log Out">Logout</a>
                <a href="{{ url_for('taco') }}" title="New Taco">Add a New Taco</a>
              {% else %}
                <a href="{{ url_for('login') }}" title ="Log in">Login</a>
                <a href="{{ url_for('register') }}" title="Sign Up">Sign Up</a>
              {% endif %}
          </nav>
          {% block content %}{% endblock %}
        </div>
      </div>
      <footer>
        <p>An MVP web app made with Flask on <a href="http://teamtreehouse.com">Treehouse</a>.</p>
      </footer>
    </div>
  </body>
</html>
templates/index.html
{% extends 'layout.html' %}

{% block content %}
<h2>Tacos</h2>
    {% if tacos.count() %}
        <table class="u-full-width">
          <thead>
            <tr>
              <th>Protein</th>
              <th>Cheese?</th>
              <th>Shell</th>
              <th>Extras</th>
            </tr>
          </thead>
          <tbody>
        {% for taco in tacos %}
           <tr>
              <!-- taco attributes here -->
              <th>{{taco.protein}}</th>
              <th>{{taco.cheese}}</th>
              <th>{{taco.shell}}</th>
              <th>{{taco.extras}}</th>
            </tr>
        {% endfor %}
          </tbody>
        </table>
    {% else %}
        <!-- message for missing tacos -->
        <h2>No Tacos Yet</h2>
    {% endif %}
{% endblock %}
Stephen Cole
Stephen Cole
Courses Plus Student 15,809 Points

I've not taken this class yet. What is it that you've been asked to do? That is, what is the challenge?

1 Answer