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Python Build a Social Network with Flask Broadcasting Lunch Template

Jekabs Dambergs
Jekabs Dambergs
7,417 Points

Stuck in - Lunch Template challenge, Task 1 of 2

I cannot understand where's the problem in my code. Can someone help also explaining the task and the problem?

Description: "Update templates/today.html to show today's order's date and the order attribute from the order variable. Use strftime on the date with the format %Y-%m-%d."

lunch.py
import datetime

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, current_user, login_required, logout_user

import forms
import models

app = Flask(__name__)
app.secret_key = 'this is our super secret key. do not share it with anyone!'
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.select().where(
            models.User.id == int(userid)
        ).get()
    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.SignUpInForm()
    if form.validate_on_submit():
        models.User.new(
            email=form.email.data,
            password=form.password.data
        )
        flash("Thanks for registering!") 
    return render_template('register.html', form=form)


@app.route('/login', methods=('GET', 'POST'))
def login():
    form = forms.SignUpInForm()
    if form.validate_on_submit():
        try:
            user = models.User.get(
                models.User.email == form.email.data
            )
            if check_password_hash(user.password, form.password.data):
                login_user(user)
                flash("You're now logged in!")
            else:
                flash("No user with that email/password combo")
        except models.DoesNotExist:
              flash("No user with that email/password combo")
    return render_template('register.html', form=form)

@app.route('/secret')
@login_required
def secret():
    return "I should only be visible to logged-in users"

@app.route('/logout')
def logout():
    logout_user()
    return redirect(url_for('login'))


@app.route('/')
def index():
    return render_template('index.html')


@app.route('/order', methods=('GET', 'POST'))
def order_lunch():
    form = forms.LunchOrderForm()
    if form.validate_on_submit():
        models.LunchOrder.create(
            user=g.user._get_current_object(),
            date=form.date.data,
            order=form.order.data.strip()
        )
    return render_template('lunch.html', form=form)


@app.route('/today')
@login_required
def today():
    order = models.LunchOrder.select().where(
        models.LunchOrder.date == datetime.date.today() &
        models.LunchOrder.user == g.user._get_current_object()
    ).get()
    return render_template('today.html', order=order)


@app.route('/cancel_order/<int:order_id>')
@login_required
def cancel_order(order_id):
    try:
        order = models.LunchOrder.select().where(
            id=order_id,
            user=g.user._get_current_object()
        ).get()
    except models.DoesNotExist:
        pass
    else:
        order.delete_instance()
    return redirect(url_for('index'))
templates/today.html
{% extends "layout.html" %}

{% block content %}
<h1>Your lunch for today</h1>

<h2><time date-time="{{ post.timestamp }}" class="distime" datetime="
  post.timestamp.strftime('%Y-%m-%d') }}"> {{ post.timestamp }} </h2>
<p><!-- print today's lunch order --></p>
<!-- button to the route for cancel_order with order_id=order.id -->
{% endblock %}

2 Answers

Jeff Muday
MOD
Jeff Muday
Treehouse Moderator 28,720 Points

I can see you understood they wanted you to modify the template file. Let's build on that.

The Challenge wants you to show the order's date in a particular format (%Y-%m-%d) and the order attribute from the order variable.

To see the order's date in the template you'd have to use

{{ order.date }}

but you need to format it too-- so they hint you need to use strftime

{{ order.date.strftime('%Y-%m-%d') }}

and then to show the order attribute of order, that is simply

{{ order.order }}

If you change your <h2> tag inner html as below and your <p> tag inner html like below, you will have a solution.

<h2> {{ order.date.strftime('%Y-%m-%d') }} </h2>
<p> {{ order.order }} </p>
Jekabs Dambergs
Jekabs Dambergs
7,417 Points

Thanks Jeff, when you explain it like that, it seems obvious. :)

Jeff Muday
MOD
Jeff Muday
Treehouse Moderator 28,720 Points

You're welcome. This course really pulls together quite a lot of important concepts into a single design.

HINT - the project you develop in this course would make a nice project to show as a portfolio piece.

Since it is a full-stack project, you can make it a show-and-tell project for potential clients or prospective employers.

  • social network applications are always interesting to clients
  • demonstrates a full-stack design concept
  • user authentication (and some best practices with hashing/encrypting user logins)
  • demonstrates familiarity with relational database concepts such as join operations
  • it looks nice, but you could make it look even nicer with a fresh HTML/CSS design
  • tests - no software is really complete until you have a test suite with reasonably full coverage.