def create_or_update_numu_release(mb_release):
"""Parse an MB release and turn it into a release object.
Returns (unsaved) release object."""
numu_date = get_numu_date(mb_release.get('first-release-date'))
if numu_date is None or mb_release.get('artist-credit') is None:
return None
release = get_numu_release(mb_release.get('id'))
if release is None:
release = Release()
release.mbid = mb_release.get('id')
release.title = mb_release.get('title')
release.type = get_numu_type(mb_release)
release.date_release = numu_date
release.artists_string = mb_release.get('artist-credit-phrase')
release.date_updated = func.now()
db.session.add(release)
db.session.commit()
for mb_artist in mb_release.get('artist-credit'):
if type(mb_artist) == dict and mb_artist['artist']:
artist = get_numu_artist_by_mbid(mb_artist['artist']['id'])
if artist is None:
artist = add_numu_artist_from_mb(
artist_mbid=mb_artist['artist']['id'])
if artist and artist not in release.artists:
release.artists.append(artist)
db.session.add(release)
db.session.commit()
return release
