new_contents: from gratipay.wireup import db, env
  from gratipay.models.team import Team, AlreadyMigrated
  
  db = db(env())
  
  slugs = db.all("""
      SELECT slug
        FROM teams
       WHERE is_approved IS TRUE
  """)
  
  for slug in slugs:
      team = Team.from_slug(slug)
      try:
          team.migrate_tips()
          print("Migrated tips for '%s'" % slug)
      except AlreadyMigrated:
          print("'%s' already migrated." % slug)
  
  print("Done.")
  
subject: Add script for migrating tips to new teams