grokcore.site 1.2

Grok-like configuration for Zope local site and utilities

This package provides support to write local site and utilities for Zope directly in Python (without ZCML).

Contents

• Setting up grokcore.site

• Examples

• API Overview

  • Base classes

  • Directives

• Changes

  • 1.2 (2009-12-20)

  • 1.1 (2009-09-18)

  • 1.0.1 (2009-06-30)

  • 1.0 (2009-06-29)

Setting up grokcore.site

This package is essentially set up like the grokcore.component package, please refer to its documentation for details. The only additional ZCML line you will need is:

<include package="grokcore.site" />

Put this somewhere near the top of your root ZCML file but below the line where you include grokcore.component’s configuration.

Examples

Global utilities are already managed by grokcore.component.

Here a simple example of a local utility:

from zope.interface import implements, Interface
import grokcore.site

class IKangaroo(Interface):

    def jump():
       """Make all kangaroos jump somewhere.
       """

class KangarooUtility(grokcore.site.LocalUtility):
    implements(IKangaroo)

    def jump(self):
        pass

Now, we can register our utility to a local site. That will create automatically, and register that utility when we create that site:

class Jungle(grokcore.site.Site):

    grokcore.site.local_utility(KangarooUtility, IKangaroo)

If you don’t add the last line, you will still have your site, but nothing to make jump your kangaroo. Then, you will be able to add manually by hand after (if you want).

API Overview

Base classes

Site

Base class for your site.

LocalUtility

Base class for a ZODB-persitent local utility.

Directives

local_utility(factory, provides=None, name=u'', setup=None, public=False, name_in_container=None)

Directive used on a site to register a local utility at the creation time:

factory

Would be the component to register (required parameter),

provides

Would be the interface used to query the local utility (required parameter),

name

Would be the name used to query the local utility,

setup

Would be a function taking parameter. If defined it will be called after the utility is created with it as first and unique parameter.

public

If true, the utility will be created in the site container itself, not in the site manager, and public will be able to access it directly.

name_in_container

Would be used as id for the utility in container itwill be created. If not defined it will ask NameChooser to pick a name for it.

In addition, the grokcore.site package exposes the grokcore.component API.

Changes

1.2 (2009-12-20)

• Migrated imports from zope.app.component to zope.site.

1.1 (2009-09-18)

• Updated dependencies (added missing ones and added separate test dependencies).

• A local utility now implements IAttributeAnnotatable.

• Update code documentation from Grok itself.

• Use 1.0b2 versions.cfg in Grok’s release info instead of a local copy; a local copy for all grokcore packages is just too hard to maintain.

1.0.1 (2009-06-30)

• Reupload to pypi with a correct version of Python which doesn’t have a distutils bug.

1.0 (2009-06-29)

• Created grokcore.site by factoring local site based components, grokkers and directives out of Grok.