def handle(self, *fixture_labels, **options):
from pages.models import OneYou2Page
one_you_pages = OneYou2Page.objects.count()
print('Current number of pages: ', one_you_pages)
if one_you_pages == 0:
self.ignore = options['ignore']
self.using = options['database']
self.app_label = options['app_label']
self.verbosity = options['verbosity']
self.excluded_models, self.excluded_apps = parse_apps_and_model_labels(
options['exclude'])
self.format = options['format']
management.call_command('loaddata', fixture_labels[0], **options)
def handle(self, *fixture_labels, **options):
self.ignore = options["ignore"]
self.using = options["database"]
self.app_label = options["app_label"]
self.verbosity = options["verbosity"]
self.excluded_models, self.excluded_apps = parse_apps_and_model_labels(
options["exclude"])
self.format = options["format"]
with transaction.atomic(using=self.using):
# here is the different bit...
self.unloaddata(fixture_labels)
if transaction.get_autocommit(self.using):
connections[self.using].close()
def handle(self, *fixture_labels, **options):
self.ignore = options['ignore']
self.using = options['database']
self.app_label = options['app_label']
self.verbosity = options['verbosity']
self.excluded_models, self.excluded_apps = parse_apps_and_model_labels(options['exclude'])
with transaction.atomic(using=self.using):
self.loaddata(fixture_labels)
# Close the DB connection -- unless we're still in a transaction. This
# is required as a workaround for an edge case in MySQL: if the same
# connection is used to create tables, load data, and query, the query
# can return incorrect results. See Django #7572, MySQL #37735.
if transaction.get_autocommit(self.using):
connections[self.using].close()
def handle(self, *fixture_labels, **options):
self.ignore = options['ignore']
self.using = options['database']
self.app_label = options['app_label']
self.verbosity = options['verbosity']
self.excluded_models, self.excluded_apps = parse_apps_and_model_labels(options['exclude'])
with transaction.atomic(using=self.using):
self.loaddata(fixture_labels)
# Close the DB connection -- unless we're still in a transaction. This
# is required as a workaround for an edge case in MySQL: if the same
# connection is used to create tables, load data, and query, the query
# can return incorrect results. See Django #7572, MySQL #37735.
if transaction.get_autocommit(self.using):
connections[self.using].close()
def get_models(*app_labels, excludes):
excluded_models, excluded_apps = parse_apps_and_model_labels(excludes)
if not app_labels:
app_list = OrderedDict.fromkeys(
app_config for app_config in apps.get_app_configs()
if app_config.models_module is not None and app_config not in excluded_apps
)
else:
app_list = OrderedDict()
for label in app_labels:
try:
app_label, model_label = label.split('.')
try:
app_config = apps.get_app_config(app_label)
except LookupError as e:
raise CommandError(str(e))
if app_config.models_module is None or app_config in excluded_apps:
continue
try:
model = app_config.get_model(model_label)
except LookupError:
raise CommandError("Unknown model: %s.%s" % (app_label, model_label))
app_list_value = app_list.setdefault(app_config, [])
# We may have previously seen a "all-models" request for
# this app (no model qualifier was given). In this case
# there is no need adding specific models to the list.
if app_list_value is not None:
if model not in app_list_value:
app_list_value.append(model)
except ValueError:
# This is just an app - no model qualifier
app_label = label
try:
app_config = apps.get_app_config(app_label)
except LookupError as e:
raise CommandError(str(e))
if app_config.models_module is None or app_config in excluded_apps:
continue
app_list[app_config] = None
models = serializers.sort_dependencies(app_list.items())
return [m for m in models if m not in excluded_models]
def handle(self, *app_labels, **options):
format = options['format']
indent = options['indent']
using = options['database']
excludes = options['exclude']
output = options['output']
show_traceback = options['traceback']
use_natural_foreign_keys = options['use_natural_foreign_keys']
use_natural_primary_keys = options['use_natural_primary_keys']
use_base_manager = options['use_base_manager']
pks = options['primary_keys']
if pks:
primary_keys = [pk.strip() for pk in pks.split(',')]
else:
primary_keys = []
excluded_models, excluded_apps = parse_apps_and_model_labels(excludes)
if not app_labels:
if priimport warnings
def handle(self, *app_labels, **options):
format = options['format']
indent = options['indent']
using = options['database']
excludes = options['exclude']
output = options['output']
show_traceback = options['traceback']
use_natural_foreign_keys = options['use_natural_foreign_keys']
use_natural_primary_keys = options['use_natural_primary_keys']
use_base_manager = options['use_base_manager']
pks = options['primary_keys']
if pks:
primary_keys = [pk.strip() for pk in pks.split(',')]
else:
primary_keys = []
excluded_models, excluded_apps = parse_apps_and_model_labels(excludes)
if len(app_labels) == 0:
if primary_keys:
raise CommandError("You can only use --pks option with one model")
def handle(self, *app_labels, **options):
format = options['format']
indent = options['indent']
using = options['database']
excludes = options['exclude']
output = options['output']
show_traceback = options['traceback']
use_natural_foreign_keys = options['use_natural_foreign_keys']
use_natural_primary_keys = options['use_natural_primary_keys']
use_base_manager = options['use_base_manager']
pks = options['primary_keys']
if pks:
primary_keys = [pk.strip() for pk in pks.split(',')]
else:
primary_keys = []
excluded_models, excluded_apps = parse_apps_and_model_labels(excludes)
if not app_labels:
if primary_keys:
raise CommandError("You can only use --pks option with one model")
app_list = dict.fromkeys(
app_config for app_config in apps.get_app_configs()
if app_config.models_module is not None and app_config not in excluded_apps
)
else:
if len(app_labels) > 1 and primary_keys:
raise CommandError("You can only use --pks option with one model")
app_list = {}
for label in app_labels:
try:
app_label, model_label = label.split('.')
try:
app_config = apps.get_app_config(app_label)
except LookupError as e:
raise CommandError(str(e))
if app_config.models_module is None or app_config in excluded_apps:
continue
try:
model = app_config.get_model(model_label)
except LookupError:
raise CommandError("Unknown model: %s.%s" % (app_label, model_label))
app_list_value = app_list.setdefault(app_config, [])
# We may have previously seen an "all-models" request for
# this app (no model qualifier was given). In this case
# there is no need adding specific models to the list.
if app_list_value is not None:
if model not in app_list_value:
app_list_value.append(model)
except ValueError:
if primary_keys:
raise CommandError("You can only use --pks option with one model")
# This is just an app - no model qualifier
app_label = label
try:
app_config = apps.get_app_config(app_label)
except LookupError as e:
raise CommandError(str(e))
if app_config.models_module is None or app_config in excluded_apps:
continue
app_list[app_config] = None
# Check that the serialization format exists; this is a shortcut to
# avoid collating all the objects and _then_ failing.
if format not in serializers.get_public_serializer_formats():
try:
serializers.get_serializer(format)
except serializers.SerializerDoesNotExist:
pass
raise CommandError("Unknown serialization format: %s" % format)
def get_objects(count_only=False):
"""
Collate the objects to be serialized. If count_only is True, just
count the number of objects to be serialized.
"""
models = serializers.sort_dependencies(app_list.items())
for model in models:
if model in excluded_models:
continue
if model._meta.proxy and model._meta.proxy_for_model not in models:
warnings.warn(
"%s is a proxy model and won't be serialized." % model._meta.label,
category=ProxyModelWarning,
)
if not model._meta.proxy and router.allow_migrate_model(using, model):
if use_base_manager:
objects = model._base_manager
else:
objects = model._default_manager
queryset = objects.using(using).order_by(model._meta.pk.name)
if primary_keys:
queryset = queryset.filter(pk__in=primary_keys)
if count_only:
yield queryset.order_by().count()
else:
yield from queryset.iterator()
try:
self.stdout.ending = None
progress_output = None
object_count = 0
# If dumpdata is outputting to stdout, there is no way to display progress
if output and self.stdout.isatty() and options['verbosity'] > 0:
progress_output = self.stdout
object_count = sum(get_objects(count_only=True))
stream = open(output, 'w') if output else None
try:
serializers.serialize(
format, get_objects(), indent=indent,
use_natural_foreign_keys=use_natural_foreign_keys,
use_natural_primary_keys=use_natural_primary_keys,
stream=stream or self.stdout, progress_output=progress_output,
object_count=object_count,
)
finally:
if stream:
stream.close()
except Exception as e:
if show_traceback:
raise
raise CommandError("Unable to serialize database: %s" % e)
def handle(self, *app_labels, **options):
format = options['format']
indent = options['indent']
using = options['database']
excludes = options['exclude']
output = options['output']
show_traceback = options['traceback']
use_natural_foreign_keys = options['use_natural_foreign_keys']
use_natural_primary_keys = options['use_natural_primary_keys']
use_base_manager = options['use_base_manager']
pks = options['primary_keys']
if pks:
primary_keys = [pk.strip() for pk in pks.split(',')]
else:
primary_keys = []
excluded_models, excluded_apps = parse_apps_and_model_labels(excludes)
if len(app_labels) == 0:
if primary_keys:
raise CommandError("You can only use --pks option with one model")
app_list = OrderedDict(
(app_config, None) for app_config in apps.get_app_configs()
if app_config.models_module is not None and app_config not in excluded_apps
)
else:
if len(app_labels) > 1 and primary_keys:
raise CommandError("You can only use --pks option with one model")
app_list = OrderedDict()
for label in app_labels:
try:
app_label, model_label = label.split('.')
try:
app_config = apps.get_app_config(app_label)
except LookupError as e:
raise CommandError(str(e))
if app_config.models_module is None or app_config in excluded_apps:
continue
try:
model = app_config.get_model(model_label)
except LookupError:
raise CommandError("Unknown model: %s.%s" % (app_label, model_label))
app_list_value = app_list.setdefault(app_config, [])
# We may have previously seen a "all-models" request for
# this app (no model qualifier was given). In this case
# there is no need adding specific models to the list.
if app_list_value is not None:
if model not in app_list_value:
app_list_value.append(model)
except ValueError:
if primary_keys:
raise CommandError("You can only use --pks option with one model")
# This is just an app - no model qualifier
app_label = label
try:
app_config = apps.get_app_config(app_label)
except LookupError as e:
raise CommandError(str(e))
if app_config.models_module is None or app_config in excluded_apps:
continue
app_list[app_config] = None
# Check that the serialization format exists; this is a shortcut to
# avoid collating all the objects and _then_ failing.
if format not in serializers.get_public_serializer_formats():
try:
serializers.get_serializer(format)
except serializers.SerializerDoesNotExist:
pass
raise CommandError("Unknown serialization format: %s" % format)
def get_objects(count_only=False):
"""
Collate the objects to be serialized. If count_only is True, just
count the number of objects to be serialized.
"""
models = serializers.sort_dependencies(app_list.items())
for model in models:
if model in excluded_models:
continue
if model._meta.proxy and model._meta.proxy_for_model not in models:
warnings.warn(
"%s is a proxy model and won't be serialized." % model._meta.label,
category=ProxyModelWarning,
)
if not model._meta.proxy and router.allow_migrate_model(using, model):
if use_base_manager:
objects = model._base_manager
else:
objects = model._default_manager
queryset = objects.using(using).order_by(model._meta.pk.name)
if primary_keys:
queryset = queryset.filter(pk__in=primary_keys)
if count_only:
yield queryset.order_by().count()
else:
yield from queryset.iterator()
try:
self.stdout.ending = None
progress_output = None
object_count = 0
# If dumpdata is outputting to stdout, there is no way to display progress
if (output and self.stdout.isatty() and options['verbosity'] > 0):
progress_output = self.stdout
object_count = sum(get_objects(count_only=True))
stream = open(output, 'w') if output else None
try:
serializers.serialize(
format, get_objects(), indent=indent,
use_natural_foreign_keys=use_natural_foreign_keys,
use_natural_primary_keys=use_natural_primary_keys,
stream=stream or self.stdout, progress_output=progress_output,
object_count=object_count,
)
finally:
if stream:
stream.close()
except Exception as e:
if show_traceback:
raise
raise CommandError("Unable to serialize database: %s" % e)
def handle(self, *app_labels, **options):
format = options["format"]
indent = options["indent"]
using = options["database"]
excludes = options["exclude"]
output = options["output"]
show_traceback = options["traceback"]
use_natural_foreign_keys = options["use_natural_foreign_keys"]
use_natural_primary_keys = options["use_natural_primary_keys"]
use_base_manager = options["use_base_manager"]
pks = options["primary_keys"]
if pks:
primary_keys = [pk.strip() for pk in pks.split(",")]
else:
primary_keys = []
excluded_models, excluded_apps = parse_apps_and_model_labels(excludes)
if not app_labels:
if primary_keys:
raise CommandError(
"You can only use --pks option with one model")
app_list = dict.fromkeys(app_config
for app_config in apps.get_app_configs()
if app_config.models_module is not None
and app_config not in excluded_apps)
else:
if len(app_labels) > 1 and primary_keys:
raise CommandError(
"You can only use --pks option with one model")
app_list = {}
for label in app_labels:
try:
app_label, model_label = label.split(".")
try:
app_config = apps.get_app_config(app_label)
except LookupError as e:
raise CommandError(str(e))
if app_config.models_module is None or app_config in excluded_apps:
continue
try:
model = app_config.get_model(model_label)
except LookupError:
raise CommandError("Unknown model: %s.%s" %
(app_label, model_label))
app_list_value = app_list.setdefault(app_config, [])
# We may have previously seen an "all-models" request for
# this app (no model qualifier was given). In this case
# there is no need adding specific models to the list.
if app_list_value is not None and model not in app_list_value:
app_list_value.append(model)
except ValueError:
if primary_keys:
raise CommandError(
"You can only use --pks option with one model")
# This is just an app - no model qualifier
app_label = label
try:
app_config = apps.get_app_config(app_label)
except LookupError as e:
raise CommandError(str(e))
if app_config.models_module is None or app_config in excluded_apps:
continue
app_list[app_config] = None
# Check that the serialization format exists; this is a shortcut to
# avoid collating all the objects and _then_ failing.
if format not in serializers.get_public_serializer_formats():
try:
serializers.get_serializer(format)
except serializers.SerializerDoesNotExist:
pass
raise CommandError("Unknown serialization format: %s" % format)
def get_objects(count_only=False):
"""
Collate the objects to be serialized. If count_only is True, just
count the number of objects to be serialized.
"""
if use_natural_foreign_keys:
models = serializers.sort_dependencies(app_list.items(),
allow_cycles=True)
else:
# There is no need to sort dependencies when natural foreign
# keys are not used.
models = []
for (app_config, model_list) in app_list.items():
if model_list is None:
models.extend(app_config.get_models())
else:
models.extend(model_list)
for model in models:
if model in excluded_models:
continue
if model._meta.proxy and model._meta.proxy_for_model not in models:
warnings.warn(
"%s is a proxy model and won't be serialized." %
model._meta.label,
category=ProxyModelWarning,
)
if not model._meta.proxy and router.allow_migrate_model(
using, model):
if use_base_manager:
objects = model._base_manager
else:
objects = model._default_manager
queryset = objects.using(using).order_by(
model._meta.pk.name)
if primary_keys:
queryset = queryset.filter(pk__in=primary_keys)
if count_only:
yield queryset.order_by().count()
else:
yield from queryset.iterator()
try:
self.stdout.ending = None
progress_output = None
object_count = 0
# If dumpdata is outputting to stdout, there is no way to display progress
if output and self.stdout.isatty() and options["verbosity"] > 0:
progress_output = self.stdout
object_count = sum(get_objects(count_only=True))
if output:
file_root, file_ext = os.path.splitext(output)
compression_formats = {
".bz2": (open, {}, file_root),
".gz": (gzip.open, {}, output),
".lzma": (open, {}, file_root),
".xz": (open, {}, file_root),
".zip": (open, {}, file_root),
}
if has_bz2:
compression_formats[".bz2"] = (bz2.open, {}, output)
if has_lzma:
compression_formats[".lzma"] = (
lzma.open,
{
"format": lzma.FORMAT_ALONE
},
output,
)
compression_formats[".xz"] = (lzma.open, {}, output)
try:
open_method, kwargs, file_path = compression_formats[
file_ext]
except KeyError:
open_method, kwargs, file_path = (open, {}, output)
if file_path != output:
file_name = os.path.basename(file_path)
warnings.warn(
f"Unsupported file extension ({file_ext}). "
f"Fixtures saved in '{file_name}'.",
RuntimeWarning,
)
stream = open_method(file_path, "wt", **kwargs)
else:
stream = None
try:
serializers.serialize(
format,
get_objects(),
indent=indent,
use_natural_foreign_keys=use_natural_foreign_keys,
use_natural_primary_keys=use_natural_primary_keys,
stream=stream or self.stdout,
progress_output=progress_output,
object_count=object_count,
)
finally:
if stream:
stream.close()
except Exception as e:
if show_traceback:
raise
raise CommandError("Unable to serialize database: %s" % e)
