article_bp = Blueprint('article', __name__, url_prefix='/api')

api = Api(article_bp)

parser = reqparse.RequestParser()

parser.add_argument('name', type=str, help='必须填写名称', required=True)

channel_fields = {
    'id': fields.Integer,
    'cname': fields.String
}

class ChannelResource(Resource):
    def get(self):
        channels = Channel.query.all()
        return marshal(channels, channel_fields)

    def post(self):
        args = parser.parse_args()
        if args:
            channel = Channel()
            channel.cname = args.get('name')
            channel.save()
            return {'msg': '频道添加成功', 'channel': marshal(channel, channel_fields)}
        else:
            return {'msg': '频道添加失败'}