def generate_sections(cn, l):
for d in l:
sec = Section.get_or_create(d['name'], cn)
db.session.add(sec)
sec.botanical_names = d['botanical_names']
sec.subtitle = d['subtitle']
sec.description = d['description']
if d['thumbnail']:
sec.thumbnail = download_image(d['thumbnail'])
sec.cultivars = list(generate_cultivars(cn, d['cultivars']))
sec.children = list(generate_sections(cn, d['subsections']))
db.session.flush()
sec.child_cultivars.reorder()
sec.children.reorder()
yield sec
