def unload_app(app_name):
# Output DROP TABLE statements for standard application tables.
connection = connections[DEFAULT_DB_ALIAS]
cursor = connection.cursor()
output = []
to_delete = set()
references_to_delete = {}
table_names = connection.introspection.get_table_list(cursor)
for model in loaded_models[app_name]:
if cursor and connection.introspection.table_name_converter(model._meta.db_table) in table_names:
# The table exists, so it needs to be dropped
opts = model._meta
for f in opts.local_fields:
if f.rel and f.rel.to not in to_delete:
references_to_delete.setdefault(f.rel.to, []).append( (model, f) )
to_delete.add(model)
for model in loaded_models[app_name]:
if connection.introspection.table_name_converter(model._meta.db_table) in table_names:
output.extend(connection.creation.sql_destroy_model(model, references_to_delete, no_style()))
output = output[::-1] # Reverse it, to deal with table dependencies.
for deletion in output:
cursor.execute(deletion)
transaction.commit_unless_managed(using=DEFAULT_DB_ALIAS)
del cache.app_store[cache.load_app(app_name)]
def unload_app(app_name):
# Output DROP TABLE statements for standard application tables.
connection = connections[DEFAULT_DB_ALIAS]
cursor = connection.cursor()
output = []
to_delete = set()
references_to_delete = {}
table_names = connection.introspection.get_table_list(cursor)
for model in loaded_models[app_name]:
if cursor and connection.introspection.table_name_converter(
model._meta.db_table) in table_names:
# The table exists, so it needs to be dropped
opts = model._meta
for f in opts.local_fields:
if f.rel and f.rel.to not in to_delete:
references_to_delete.setdefault(f.rel.to, []).append(
(model, f))
to_delete.add(model)
for model in loaded_models[app_name]:
if connection.introspection.table_name_converter(
model._meta.db_table) in table_names:
output.extend(
connection.creation.sql_destroy_model(model,
references_to_delete,
no_style()))
output = output[::-1] # Reverse it, to deal with table dependencies.
for deletion in output:
cursor.execute(deletion)
transaction.commit_unless_managed(using=DEFAULT_DB_ALIAS)
del cache.app_store[cache.load_app(app_name)]
def get_for_picking(self, ct):
""" Returns class instance of a given model ContentType"""
if type(ct) is not ContentType:
raise TypeError, "cannot call get_for_picking without a valid ContentType, called with {0:>s}".format
model = app_cache.get_model(ct.app_label, ct.model)
if not model:
try:
app_cache.write_lock.acquire()
module = app_cache.load_app('libscampi.contrib.{0:>s}'.format(ct.app_label))
app_cache.write_lock.release()
model = app_cache.get_model(ct.app_label, ct.model)
except ImportError:
raise NameError, "cannot get ({0:>s}, {1:>s}) from any path".format(ct.app_label, ct.model)
if not self.is_registered(model):
raise NameError, "({0:>s}, {1:>s}) is not registered for picking".format(ct.app_label, ct.model)
try:
fs = self.get_registration_info(model)()
except PickerError:
raise NameError, "({0:>s}, {1:>s}) has no filter set".format(ct.app_label, ct.model)
return model, fs
def test_new_import_doesnot_raise_exception(self):
self.setup_app("circular_import_new", "circular_import_new.models.MyProduct")
try:
app = cache.load_app("circular_import_new")
except ImproperlyConfigured:
app = False
self.assertTrue(app, 'Could not load app "circular_import_new"')
def test_new_import_doesnot_raise_exception(self):
self.setup_app('circular_import_new',
'circular_import_new.models.MyProduct')
try:
app = cache.load_app('circular_import_new')
except ImproperlyConfigured:
app = False
self.assertTrue(app, 'Could not load app "circular_import_new"')
def test_migration_path(self):
_old_app_store = copy.deepcopy(cache.app_store)
test_apps = [
'migrations.migrations_test_apps.normal',
'migrations.migrations_test_apps.with_package_model',
]
base_dir = os.path.dirname(os.path.dirname(__file__))
try:
with override_settings(INSTALLED_APPS=test_apps):
for app in test_apps:
cache.load_app(app)
migration = migrations.Migration('0001_initial', app.split('.')[-1])
expected_path = os.path.join(base_dir, *(app.split('.') + ['migrations', '0001_initial.py']))
writer = MigrationWriter(migration)
self.assertEqual(writer.path, expected_path)
finally:
cache.app_store = _old_app_store
def test_migration_path(self):
_old_app_store = copy.deepcopy(cache.app_store)
test_apps = [
'migrations.migrations_test_apps.normal',
'migrations.migrations_test_apps.with_package_model',
]
base_dir = os.path.dirname(os.path.dirname(__file__))
try:
with override_settings(INSTALLED_APPS=test_apps):
for app in test_apps:
cache.load_app(app)
migration = migrations.Migration('0001_initial',
app.split('.')[-1])
expected_path = os.path.join(
base_dir,
*(app.split('.') + ['migrations', '0001_initial.py']))
writer = MigrationWriter(migration)
self.assertEqual(writer.path, expected_path)
finally:
cache.app_store = _old_app_store
