def generate_name(cls, hr_name, max_length=25):
'''
Generate a URL-friendly name based on a given human-readable name.
Normalizes given name, then looks for conflicting domains, addressing
conflicts by adding "-1", "-2", etc. May return None if it fails to
generate a new, unique name. Throws exception if it can't figure out
a name, which shouldn't happen unless max_length is absurdly short.
'''
from corehq.apps.domain.utils import get_domain_url_slug
from corehq.apps.domain.dbaccessors import domain_or_deleted_domain_exists
name = get_domain_url_slug(hr_name, max_length=max_length)
if not name:
raise NameUnavailableException
if domain_or_deleted_domain_exists(name):
prefix = name
while len(prefix):
name = next_available_name(
prefix, Domain.get_names_by_prefix(prefix + '-'))
if domain_or_deleted_domain_exists(name):
# should never happen
raise NameUnavailableException
if len(name) <= max_length:
return name
prefix = prefix[:-1]
raise NameUnavailableException
return name
def test_deleted_domain_exists(self):
x = Domain(name='x')
x.save()
y = Domain(name='y')
y.save()
y.delete(leave_tombstone=True)
self.addCleanup(x.delete)
self.addCleanup(y.delete)
self.assertTrue(domain_exists('x'))
self.assertFalse(deleted_domain_exists('x'))
self.assertTrue(domain_or_deleted_domain_exists('x'))
self.assertFalse(domain_exists('y'))
self.assertTrue(deleted_domain_exists('y'))
self.assertTrue(domain_or_deleted_domain_exists('y'))
self.assertTrue(len(list(iter_all_domains_and_deleted_domains_with_name('x'))), 1)
self.assertTrue(len(list(iter_all_domains_and_deleted_domains_with_name('y'))), 1)
def save(self, **params):
from corehq.apps.domain.dbaccessors import domain_or_deleted_domain_exists
self.last_modified = datetime.utcnow()
if not self._rev:
if domain_or_deleted_domain_exists(self.name):
raise NameUnavailableException(self.name)
# mark any new domain as timezone migration complete
set_tz_migration_complete(self.name)
super(Domain, self).save(**params)
from corehq.apps.domain.signals import commcare_domain_post_save
results = commcare_domain_post_save.send_robust(sender='domain', domain=self)
log_signal_errors(results, "Error occurred during domain post_save (%s)", {'domain': self.name})
