gistfile1.py

@app.route("/cart")
def shopping_cart():
    """TODO: Display the contents of the shopping cart. The shopping cart is a
    list held in the session that contains all the melons to be added. Check
    accompanying screenshots for details."""
    melon_ids = session.get("my_melons")

    melon_qty = {}
    for melon_id in melon_ids:
        if melon_qty.get(melon_id):
            melon_qty[melon_id] += 1
        else:
            melon_qty[melon_id] = 1
    print melon_qty


    melon_dict = {}
    for melon_id, qty in melon_qty.items():
        melon = model.get_melon_by_id(melon_id)
        melon_dict[melon] = qty

    print melon_dict

    return render_template("cart.html",
                           melons = melon_dict)




@app.route("/add_to_cart/<int:id>")
def add_to_cart(id):
    """TODO: Finish shopping cart functionality using session variables to hold
    cart list.
    
    Intended behavior: when a melon is added to a cart, redirect them to the
    shopping cart page, while displaying the message
    "Successfully added to cart" """

    if not session.get("my_melons"):
        session["my_melons"] = []
    session["my_melons"].append(id)

    print session
    flash("Successfully added to cart")
    return redirect("/cart")

gistfile2.mustache

{% extends 'base.html' %}
{% block body %}
<table class="table table-striped">
    <tr><th>Melon Name</th><th>Quantity</th><th>Price</th><th>Total</th></tr>
    {% for melon, qty in melons.items() %}
    <tr><td>{{ melon.common_name }}</td><td>{{ qty }}</td><td>{{ melon.price_str() }}</td><td>$15.00</td></tr>
    {% endfor %}
</table>
<h3>Total: $27.00</h3>       
<a href="/checkout" class="btn btn-large btn-primary">Check Out</a>
{% endblock %}