Cartridge Donation Product

page_processors.py

from __future__ import unicode_literals
from django.http import HttpResponseRedirect
from mezzanine.pages.page_processors import processor_for
from cartridge.shop.models import Product
from cartridge.shop.forms import AddProductForm
from .utils import Donation
 
@processor_for("^product/(?P<slug>.*)$")
def donation_form(request, page):
    form = AddProductForm()
    if request.method == "POST" and form.is_valid():
        product = Product.objects.get(id=request.POST.get("product_id"))
        item = Donation(product, float(request.POST.get("donation_amount", "0.0")))
        request.cart.add_item(item, 1)
        redirect = request.path + "?submitted=true"
        return HttpResponseRedirect(redirect)
    return {"form": form}

product.html

{% extends "shop/base.html" %}
{% load staticfiles mezzanine_tags shop_tags rating_tags i18n %}

{% block meta_title %}{{ product.meta_title }}{% endblock %}
{% block body_id %}category{% endblock %}

{% block meta_keywords %}{% metablock %}
{% for keyword in product.keywords.all %}
    {% if not forloop.first %}, {% endif %}
    {{ keyword }}
{% endfor %}
{% endmetablock %}{% endblock %}

{% block meta_description %}{% metablock %}
{{ product.description }}
{% endmetablock %}{% endblock %}

{% block extra_css %}
{{ block.super }}
<link rel="stylesheet" href="{% static "mezzanine/css/magnific-popup.css" %}">
{% endblock %}

{% block extra_js %}
{{ block.super }}
<script src="{% static "mezzanine/js/magnific-popup.js" %}"></script>
<script>
$(document).ready(function() {
    $('#product-images-large').magnificPopup({
        delegate: 'a',
        type: 'image',
        gallery: {
            enabled: true,
        }
    });
});
</script>
{% endblock %}

{% block extra_head %}
<script>var variations = {{ variations_json|safe }};</script>
<script src="{% static "cartridge/js/product_variations.js" %}"></script>
{% endblock %}

{% block breadcrumb_menu %}
{{ block.super }}
<li>{{ product.title }}</li>
{% endblock %}

{% block title %}
{% editable product.title %}{{ product.title }}{% endeditable %}
{% endblock %}

{% block main %}

{% if images %}
{% spaceless %}
<ul id="product-images-large" class="list-unstyled list-inline">
    {% for image in images %}
    <li id="image-{{ image.id }}-large"{% if not forloop.first %}style="display:none;"{% endif %}>
        <a class="product-image-large" href="{{ MEDIA_URL }}{{ image.file }}">
            <img alt="{{ image.description }}" src="{{ MEDIA_URL }}{% thumbnail image.file 0 300 %}" class="img-thumbnail img-responsive col-xs-12">
        </a>
    </li>
    {% endfor %}
</ul>

{% if images|length != 1 %}
<ul id="product-images-thumb" class="list-unstyled list-inline">
    {% for image in images %}
    <li>
        <a class="thumbnail" id="image-{{ image.id }}" href="{{ MEDIA_URL }}{{ image.file }}">
            <img alt="{{ image.description }}" src="{{ MEDIA_URL }}{% thumbnail image.file 75 75 %}">
        </a>
    </li>
    {% endfor %}
</ul>
{% endif %}

{% endspaceless %}
{% endif %}

{% editable product.content %}
{{ product.content|richtext_filters|safe }}
{% endeditable %}

{% if product.available and has_available_variations %}
<ul id="variations" class="list-unstyled">
    {% for variation in variations %}
    <li id="variation-{{ variation.sku }}"
        {% if not variation.default %}style="display:none;"{% endif %}>
        {% if variation.has_price %}
            {% if variation.on_sale %}
                <span class="old-price">{{ variation.unit_price|currency }}</span>
                {% trans "On sale:" %}
            {% endif %}
            <span class="price">{{ variation.price|currency }}</span>
        {% else %}
            {% if has_available_variations %}
            <span class="error-msg">
            {% trans "The selected options are currently unavailable." %}
            </span>
            {% endif %}
        {% endif %}
    </li>
    {% endfor %}
</ul>

{% errors_for add_product_form %}

<form method="post" id="add-cart" action="{{ item.product.get_absolute_url }}">
  {% csrf_token %}
  <input type="hidden" id="product_id" name="product_id" value="{{ item.product.id }}">
  <input type="hidden" name="quantity" id="id_quantity" value="1">
  <input type="text"  class="donation" id="donation_amount" name="donation_amount">
  <button type="submit" class="button small">{% trans "Donate Now" %}</button>
</form>
{% else %}
<p class="error-msg">{% trans "This product is currently unavailable." %}</p>
{% endif %}

{% if settings.SHOP_USE_RATINGS %}
<div class="panel panel-default rating">
    <div class="panel-body">{% rating_for product %}</div>
</div>
{% endif %}

{% if settings.SHOP_USE_RELATED_PRODUCTS and related_products %}
<h2>{% trans "Related Products" %}</h2>
<div class="row related-products">
    {% for product in related_products %}
    <div class="col-xs-6 col-sm-4 col-md-3 product-thumb">
        <a class="thumbnail" href="{{ product.get_absolute_url }}">
            {% if product.image %}
            <img src="{{ MEDIA_URL }}{% thumbnail product.image 90 90 %}">
            {% endif %}
            <div class="caption">
            <h6>{{ product }}</h6>
            <div class="price-info">
            {% if product.has_price %}
                {% if product.on_sale %}
                <span class="old-price">{{ product.unit_price|currency }}</span>
                {% trans "On sale:" %}
                {% endif %}
                <span class="price">{{ product.price|currency }}</span>
            {% else %}
                <span class="coming-soon">{% trans "Coming soon" %}</span>
            {% endif %}
            </div>
            </div>
        </a>
    </div>
    {% endfor %}
</div>
{% endif %}

{% endblock %}

utils.py

from __future__ import unicode_literals

class Donation(object):
    def __init__(self, product, unit_price):
        product_variation = product.variations.all()
        self.description = product.title
        self.unit_price = unit_price
        self.url = product.get_absolute_url()
        self.sku = product_variation[0].sku
        self.product = product
        self.image = product_variation[0].image

    def price(self):
      return self.unit_price

    def __unicode__(self):
        return self.description