Provided Base Classes

The zope.contentprovider.provider module provides an useful base class for implementing content providers. It has all boilerplate code and it’s only required to override the render method to make it work:

>>> from zope.contentprovider import interfaces
>>> from zope.contentprovider.provider import ContentProviderBase
>>> class MyProvider(ContentProviderBase):
...     def render(self, *args, **kwargs):
...         return 'Hi there'
>>> provider = MyProvider(None, None, None)
>>> interfaces.IContentProvider.providedBy(provider)
>>> provider.update()
>>> print(provider.render())
Hi there

Note that it can’t be used as is, without providing the render method:

>>> bad = ContentProviderBase(None, None, None)
>>> bad.update()
>>> print(bad.render())
Traceback (most recent call last):
NotImplementedError: ``render`` method must be implemented by subclass

You can add the update logic into the update method as with any content provider and you can implement more complex rendering patterns, based on templates, using this ContentProviderBase class as a base.

You might also want to look at the zope.viewlet package for a more featureful API.


Simple base class for implementing content providers

class zope.contentprovider.provider.ContentProviderBase(context, request, view)[source]

Bases: zope.publisher.browser.BrowserView

Base class for content providers