def register_on_market(name, host, site):
# Check that the market name is not in use
existing = True
if host[-1] != '/':
host += '/'
try:
Marketplace.objects.get(name=name)
Marketplace.objects.get(host=host)
except:
existing = False
if existing:
raise Exception('Marketplace already registered')
store_name = settings.STORE_NAME
marketadaptor = MarketAdaptor(host)
store_info = {
'store_name': store_name,
'store_uri': site,
}
try:
marketadaptor.add_store(store_info)
except HTTPError:
raise Exception('Bad Gateway')
try:
Marketplace.objects.create(name=name, host=host)
except Exception, e:
# If the marketplace model creation fails it is necesary to unregister the store
# in order to avoid an inconsistent state
marketadaptor.delete_store(store_name)
raise e
