Pecan Documentation, Release 1.3.3
(continued from previous page)
class RootController(object):
# HTTP GET /
@expose(generic=True, template='json')
def index(self):
return dict()
# HTTP POST /
@index.when(method='POST', template='json')
def index_POST(self,
**
kw):
uuid = create_something()
return dict(uuid=uuid)
1.3.4 Pecan’s Routing Algorithm
Sometimes, the standard object-dispatch routing isn’t adequate to properly route a URL to a controller. Pecan provides
several ways to short-circuit the object-dispatch system to process URLs with more control, including the special
_lookup(), _default(), and _route() methods. Defining these methods on your controller objects provides
additional flexibility for processing all or part of a URL.
1.3.5 Routing to Subcontrollers with _lookup
The _lookup() special method provides a way to process a portion of a URL, and then return a new controller
object to route to for the remainder.
A _lookup() method may accept one or more arguments, segments of the URL path to be processed (split on /).
_lookup() should also take variable positional arguments representing the rest of the path, and it should include
any portion of the path it does not process in its return value. The example below uses a
*
remainder list which will
be passed to the returned controller when the object-dispatch algorithm continues.
In addition to being used for creating controllers dynamically, _lookup() is called as a last resort, when no other
controller method matches the URL and there is no _default() method.
from pecan import expose, abort
from somelib import get_student_by_name
class StudentController(object):
def __init__(self, student):
self.student = student
@expose()
def name(self):
return self.student.name
class RootController(object):
@expose()
def _lookup(self, primary_key,
*
remainder):
student = get_student_by_primary_key(primary_key)
if student:
return StudentController(student), remainder
else:
abort(404)
12 Chapter 1. Narrative Documentation
剩余104页未读，继续阅读
maerdetiantang
- 粉丝: 17
- 资源: 35
我的内容管理
展开
最新资源
- AirKiss技术详解：无线传递信息与智能家居连接
- Hibernate主键生成策略详解
- 操作系统实验：位示图法管理磁盘空闲空间
- JSON详解：数据交换的主流格式
- Win7安装Ubuntu双系统详细指南
- FPGA内部结构与工作原理探索
- 信用评分模型解析：WOE、IV与ROC
- 使用LVS+Keepalived构建高可用负载均衡集群
- 微信小程序驱动餐饮与服装业创新转型：便捷管理与低成本优势
- 机器学习入门指南：从基础到进阶
- 解决Win7 IIS配置错误500.22与0x80070032
- SQL-DFS：优化HDFS小文件存储的解决方案
- Hadoop、Hbase、Spark环境部署与主机配置详解
- Kisso：加密会话Cookie实现的单点登录SSO
- OpenCV读取与拼接多幅图像教程
- QT实战：轻松生成与解析JSON数据
资源上传下载、课程学习等过程中有任何疑问或建议，欢迎提出宝贵意见哦~我们会及时处理！
点击此处反馈
