docs: def schedule():
    """HTTP endpoint for scheduling tasks
  
    If a task with the same code already exists, the one with the shorter
    interval will be made active.
    """
    code = request.form['code']
    interval = int(request.form['interval'])
  
    task_id = binascii.b2a_hex(os.urandom(5))
    new_task = Task(id=task_id)
    new_task.active = True
    new_task.code = code
    new_task.interval = interval
  
    # TODO(derek): Assert there is only one other_task
    other_task = Task.query.filter_by(code=code, active=True).first()
  
    if other_task:
      if other_task.interval <= new_task.interval:
        new_task.active = False
      else:
        other_task.active = False
        other_task.save()
        current_app.scheduler.cancel(other_task.id)
  
    if new_task.active:
      print current_app.scheduler.schedule
      current_app.scheduler.schedule({
        'id': task_id,
        'code': new_task.code,
        'interval': new_task.interval
      })
  
    new_task.save()
  
    return json.dumps({
      'status': 'success',
      'id': task_id,
    })