TagsController.py 文件源码

def update(tag_id, body):
    """ Update category
    """
    try:
        tag = Tag.objects.get(id=tag_id)
    except (ObjectDoesNotExist, ValueError):
        raise NotFound('Tag not found')
    try:
        body.pop('id', None)

        existing = Tag.objects.exclude(id=tag.id).values_list('name', flat=True)
        existing = [tg.lower() for tg in existing]
        if body['name'].lower().strip() in existing:
            raise BadRequest('Tag already exists')

        Tag.objects.filter(pk=tag.pk).update(**body)
        tag = Tag.objects.get(pk=tag.pk)
    except (AttributeError, KeyError, FieldError, IntegrityError, ValueError, TypeError):
        raise BadRequest('Invalid fields in body')
    return model_to_dict(tag)