Image appears in one template, but not in the other - django

Question

I'm trying to create an app with 2 pages, a general one an a view details page.
In both pages I need the image of the product. In the general view, the image appears, but not in the details page.
This is my html for details page:
<div class="span4">
<h2>{{ prod.name }}</h2><br>
<img alt="" src="{{ STATIC_URL }}{{prod.image}}"></a>
</div>
And here is the html for the general page (the same image is defined here as {{ values.3.0 }}):
{% for key, values in prodmatrix.items %}
<li class="span3">
<div class="product-box">
<span class="sale_tag"></span>
<p><img src="{{ STATIC_URL }}{{values.1.0}}" alt="" /></p>
{{ values.0.0 }}<br/>
Commodo consequat
<p class="price">#{{values.2.0}} #{{values.2.1}} #{{values.2.2}}</p>
</div></li>
{% endfor %}
Both templates are based on a base, which already imports:
{% load static %}
{% load i18n %}
{% load staticfiles %}
Here is the view for the detailed template:
def single_product(request, slug):
product = get_object_or_404(Product, slug=slug)
prod = Product.objects.get(slug=slug)
reviews = Review.objects.get(product=prod.id)
reviewmatrix = {}
i = 0
try:
for rev in reviews:
reviewmatrix[str(i)] = [[review.review_text]]
u = User.objects.get(username=rev.user)
i = i + 1
except:
u = User.objects.get(username=reviews.user)
reviewmatrix[str(i)] = [[reviews.review_text]]
return render_to_response('product_detail.html', {'prod':prod, 'reviews':reviews, 'user':u.first_name})
And here is the view for the general template
def home(request):
if request.user.is_authenticated():
user = request.user
prods = Product.objects.all()
i = 0
prodmatrix = {}
for prod in prods:
# 0 1 2 3
prodmatrix[str(i)] = [[prod.name], [prod.image], [], [prod.slug]]
review = Review.objects.get(product=prod.id) # ^ this is for tags
for tags in review.tag.all(): #
print tags.name
prodmatrix[str(i)][2].append(tags.name) # append only tags
i = i + 1
#for prod in prods:
# tags = Review.objects.filter(product=prod.id)
# for tag in tags:
# prodmatrix[str(i)] = [[prod.name], [prod.image], [tag]]
# i = i + 1
return render(request, 'home.html',{'prodmatrix':prodmatrix, 'prods':prods})
else:
products = Product.objects.all()
return render(request, 'home.html',{'products':products})
return render(request, 'home.html')

Answer 1

The second view is using the render shortcut, so the context processors are run, which includes the STATIC_URL variable in the context. The first view uses the old render_to_response shortcut, which by default does not run context processors. Change it to use render.