def source_factory(data):
"""Given something like a request.POST, decide which kind of Source
to create, if any.
Returns a tuple of (Source, created) where created is a boolean:
True if the source was created anew, False if it already existed.
"""
if data.get('source'):
source = Source.objects.filter(id=data['source']).all()
assert len(source) == 1, \
"Unexpectedly got %d sources with id %s" % (len(source), data['source'])
source = source[0]
# Try to get a more specific subclass instance.
source = source.get_child_source() or source
return (source, False)
source = None
source_type = data.get('source_type')
if source_type == 'twitter':
source = TwitterSource(name='twitter', user=data['twitter_user'],
status_id=data['twitter_id'])
elif source_type == 'email' and data.has_key('email'):
source = EmailSource(name='email', address=data['email'])
# XXX handle SeeClickFixSource here
if source:
# We need to save it to get the ID. This means we'll need to
# roll back the transaction if there are later validation
# problems in the Rack.
source.save()
return (source, source is not None)
def test_get_child_source(self):
from fixcity.bmabr.models import TwitterSource
ts = TwitterSource(name='twitter', user='******', status_id='99')
ts.save()
from fixcity.bmabr.models import Source
generic_source = Source.objects.filter(id=ts.id).all()[0]
self.assertEqual(generic_source.twittersource, ts)
self.assertEqual(generic_source.get_child_source(), ts)
def test_existing_source(self):
from fixcity.bmabr.models import Source, TwitterSource
from fixcity.bmabr.views import source_factory
existing = Source()
existing.name = 'misc source'
existing.save()
dupe, is_new = source_factory({'source': existing.id})
self.assertEqual(dupe, existing)
self.failIf(is_new)
# It should work also with subclasses of Source...
twit = TwitterSource(status_id=12345, name='twitter')
twit.save()
self.assertEqual((twit, False), source_factory({'source': twit.id}))
