dolmen.beaker 0.4

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在遍历开始时（遍历IRootFolder对象）初始化beaker会话。

>>> 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

我们首先创建一个Request实例。

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

我们通过BeforeTraverseEvent来初始化我们的会话。此事件将在请求中创建一个Session对象实例。

>>> 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来获取会话对象。

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

让我们给我们的会话赋值并保存它。

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

在遍历之前，新的请求无法访问会话。

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

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

关闭和无效化

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

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

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

无效化

>>> import hamcrest
>>> 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'

0.4 (2020-10-07)

• 更新MANIFEST

0.3 (2020-04-07)

• 修正了已弃用的导入和包结构。