def clean(self):
asin = asin_from_url(self.cleaned_data['url'])
try:
self.cleaned_data['resource'] = self.amazon.item_lookup(asin)
except:
exc_class, exc, tb = sys.exc_info()
raise forms.ValidationError('Error looking up item, "%s"' % exc)
return self.cleaned_data
def add_view(self, request):
form = ResourceForm(request.POST or None)
if request.method == 'POST':
if form.is_valid():
url = form.cleaned_data['url']
asin = asin_from_url(url)
amazon_item = amazon_client.item_lookup(asin)
media_type, _ = MediaType.objects.get_or_create(
title=amazon_item['productgroup'])
resource = Resource.objects.create(
asin=asin,
title=amazon_item['title'],
author=amazon_item['author'],
media_type=media_type,
pub_date=amazon_item['publicationdate'],
pages=amazon_item['numberofpages'] or 0,
)
img_url = amazon_item['image']
if img_url:
img_name, extension = img_url.rsplit('.', 1)
# download the image and store it in memory
image_data, _ = urllib.urlretrieve(img_url)
resource.cover_image.save(
'%s.%s' % (slugify(resource.title)[:30], extension),
File(open(image_data))
)
# resize the newly created image
image_resize(
resource.cover_image.path,
resource.cover_image.path,
THUMB_WIDTH,
THUMB_HEIGHT)
resource.save()
return HttpResponseRedirect(reverse("admin:amazon_resources_resource_change", args=[resource.pk]))
return render_to_response('admin/amazon_resources/add_amazon_resource.html',
{'title': 'Add a resource', 'form': form},
context_instance=RequestContext(request))
def clean_url(self):
url = self.cleaned_data.get('url')
if asin_from_url(url):
return url
else:
raise forms.ValidationError('Could not determine ASIN from url')
