Custom IWorkspace adapter to define our own group mapping

src/ploneintranet/workspace/adapters.py

@@ -0,0 +1,18 @@
+from collective.workspace.workspace import Workspace
+
+
+class PloneIntranetWorkspace(Workspace):
+    """
+    A custom workspace behaviour, based on collective.workspace
+
+    Here we define our own available groups, and the roles
+    they are given on the workspace.
+    """
+
+    # A list of groups to which team members can be assigned.
+    # Maps group name -> roles
+    available_groups = {
+        u'Members': ('Reader', 'TeamMember'),
+        u'Admins': ('Contributor', 'Editor', 'Reviewer',
+                    'Reader', 'TeamManager',),
+    }

src/ploneintranet/workspace/configure.zcml

@@ -26,6 +26,12 @@
      handler=".subscribers.workspace_added"
      />
 
+  <adapter
+     for="ploneintranet.workspace.workspacefolder.IWorkspaceFolder"
+     provides="collective.workspace.interfaces.IWorkspace"
+     factory=".adapters.PloneIntranetWorkspace"
+     />
+
   <browser:resourceDirectory
     name="ploneintranet.workspace"
     directory="resources" />