def get_version(self, version=None, required=False):
if version is None:
if self.versions.exists():
return self.versions.first()
return None
try:
return self.versions.get(identifier=version)
except FileVersion.DoesNotExist:
if required:
raise exceptions.VersionNotFoundError(version)
return None
def get_version(self, version=None, required=False):
if version is None:
if self.versions:
return self.versions[-1]
return None
try:
return self.versions[int(version) - 1]
except (IndexError, ValueError):
if required:
raise exceptions.VersionNotFoundError(version)
return None
def get_version(self, revision, required=False):
"""Find a version with identifier revision
:returns: FileVersion or None
:raises: VersionNotFoundError if required is True
"""
for version in reversed(self.versions):
if version.identifier == revision:
break
else:
if required:
raise exceptions.VersionNotFoundError(revision)
return None
return version
def update_version_metadata(self, location, metadata):
for version in reversed(self.versions):
if version.location == location:
version.update_metadata(metadata)
return
raise exceptions.VersionNotFoundError(location)
