On Wednesday 26. July 2017 22.49.47 Jasper Olbrich wrote:

I'm trying to create a kind of group mechanism that allows any registered user who knows a password to join an existing group in my wiki.

Setup: * TestGroup page, member list at the bottom of the page * LetMeIn page with a form field for the password (FormCreate macro) * custom action deriving from FormSubmit

At first, I tried to edit the current revision of TestGroup on the file system level, but there seem to be some caching issues with regard to the permissions, or I screwed up the revisions or something else. It didn't work reliably.

Although Moin 1.x has a fairly understandable filesystem layout, getting the permissions right can be a challenge. Furthermore, there is caching involved with pages that provide group details, which may be the problem you were experiencing.

Then I found the Page and PageEditor classes and did the following:

real_user = self.request.user # 'su' u = User(self.request, _getUserIdByKey(self.request, "name", "ol")) self.request.user = u p = Page(self.request, "TestGroup") rev = p.current_rev() pe = PageEditor(self.request, "TestGroup") pe.saveText(p.get_raw_body() + " * {}\n".format(real_user.name), rev) # 'un-su' self.request.user = real_user

"ol" is a user that can write to TestGroup. This code works, but feels kind of wrong. Are there better ways to do what I want?

Probably not! In my ApproveChanges plug-in for Moin, I did something rather similar. See the following resource for more details: http://hgweb.boddie.org.uk/ApproveChanges/file/5e947e093388/ApproveChangesSu... Ideally, it would be possible to edit the group dictionary and have the dictionary serialised back to the originating page, but this is not a straightforward exercise. (Moin 2 might use special, rigid resources for things like this but I haven't really investigated.) Paul