def create_or_update_feature(self, product, mapping, data):
feature = mapping.feature
try:
pf = ProductFeatures.objects.using('default').get(product=product, feature = feature)
except ProductFeatures.DoesNotExist:
pf = ProductFeatures(product = product, feature = feature)
pf.data = data
pf.clean()
pf.save(using='default')
