dolmen.beaker 0.1

配置

>>> from zope.component import getUtility, queryUtility
>>> from dolmen.beaker.interfaces import ISessionConfig

>>> session_config = queryUtility(ISessionConfig)
>>> session_config.get('key')
'beaker.session.id'

初始化

dolmen.beaker遍历时初始化烧杯会话 开始（遍历irootfolder对象）：

>>> from zope.event import notify
>>> import grokcore.component as grok
>>> from zope.publisher.browser import TestRequest
>>> from zope.publisher.interfaces.http import IHTTPRequest
>>> from zope.traversing.interfaces import BeforeTraverseEvent

首先，我们创建请求的实例：

>>> request = TestRequest()
>>> IHTTPRequest.providedBy(request)
True

我们在beforetraverseevent的帮助下初始化会话。 此事件将在请求中生成会话对象的实例：

>>> from zope.component.hooks import getSite
>>> site = getSite()
>>> notify(BeforeTraverseEvent(site, request))

我们可以使用两个可用的适配器获取会话对象：

>>> from dolmen.beaker.interfaces import ISession
>>> session = ISession(request)
>>> session.__class__
<class 'beaker.session.SessionObject'>

我们为会话分配一个值并保存它：

>>> session['foo'] = 'bar'
>>> session.save()
>>> session['foo']
'bar'

如果不遍历，新请求将无法访问会话：

>>> newrequest = TestRequest()
>>> newrequest.response._cookies
{}

>>> session = ISession(newrequest)
>>> session['foo']
Traceback (most recent call last):
...
KeyError: 'foo'

关闭和失效

>>> cookie = request.response._cookies
>>> cookie
{}

>>> from zope.publisher.interfaces import EndRequestEvent
>>> notify(EndRequestEvent(site, request))

>>> cookie = request.response._cookies
>>> cookie
{'beaker.session.id': {'path': '/', 'value': '...'}}

失效

>>> session = ISession(request)
>>> print session['foo']
bar
>>> session.invalidate() # Or destroy, to get rid of everything
>>> session['foo']
Traceback (most recent call last):
...
KeyError: 'foo'

>>> print session
{'_id': '...'}