Products.PluggableAuthService provides a "Dynamic Groups Plugin". You can add "virtual" groups, and for each of them Membership is established via a predicate, expressed as a TALES expression.
This package aims to provide a similar functionality, but in a different way. Once the
"Another Dynamic Groups Plugin" is installed it will lookup registered group providers (technically
these are named multi-adapters for the user and the request). Each group provider will provide a
set of groups which the user is a member of. It's similar to borg.localrole_ but for
groups.
NOTE: A group provider can also provide membership for regular (non-virtual) groups.
The provided plugin is also a "groups introspection plugin". It means the "virtual" groups created
are shown in the Plone management UI for groups. Actually, if we don't do that the
@@usergroup-userprefs view breaks.
Current version was tested with Plone 6.
pip based:
pip install collective.anotherdynamicgroupsplugin
buildout based:
The usual: make the package available in the buildout and have its ZCML loaded. Then you can install it as a Plone add-on into a Plone Site.
Once the add-on is installed you can add "virtual" groups. These will be the groups dynamically assigned to the users by the plugin. This can also be done through the ZMI
Now we create and register the named adapters. The first one just makes everybody a member of "group1"
Example - all users are in a dynamic group
You can register the adapter either full in python code or via zcml file.
register the full adapter in python code:
from collective.anotherdynamicgroupsplugin.interfaces import IGroupProvider
from zope.component import provideAdapter
from zope.interface import implementer
from zope.publisher.interfaces.http import IHTTPRequest
from Products.PluggableAuthService.interfaces.authservice import IBasicUser
@implementer(IGroupProvider)
class ProvideGroup1ToAll(object):
def __init__(self, user, request):
self.user = user
self.request = request
def __call__(self):
# all users are in group1
return ['group1']
provideAdapter(
ProvideGroup1ToAll,
adapts=(IBasicUser, IHTTPRequest),
name="ProvideGroup1ToAll"
)OR register your named adapter via zcml:
configure.zcml
<!-- register the named adapters in your configure.zcml -->
<adapter factory=".dynamic_groups.ProvideGroup1ToAll" name="ProvideGroup1ToAll" />with this adapter registration snippet in zcml, your code should be looks like so:
dynamic_groups.py
from collective.anotherdynamicgroupsplugin.interfaces import IGroupProvider
from zope.component import adapter
from zope.interface import implementer
from zope.publisher.interfaces.http import IHTTPRequest
from Products.PluggableAuthService.interfaces.authservice import IBasicUser
@implementer(IGroupProvider)
@adapter(IBasicUser, IHTTPRequest)
class ProvideGroup1ToAll(object):
def __init__(self, user, request):
self.user = user
self.request = request
def __call__(self):
# all users are in group1
return ['group1']